Version history

3.02

  • New module for PCA of Elliptical Fourier shapes
  • New module for size removal from distance measures (Burnaby's method etc.)
  • Box's M test for equal covariance matrices now handles more than two groups
  • Clustering results can be saved as NEXUS tree files
  • Two-sample and several-sample univariate tests: Now accepts samples either in separate columns or in a single column plus a Group column
  • Bug fix, clustering: Data were corrupted when bootstrapping repeatedly
  • Bug fix, Raup-Crick similarity: Missing data were treated incorrectly
  • Bug fix, data pasted into spreadsheet were truncated if the spreadsheet had too few rows
  • Conversion of value pairs to data matrix
  • Calculation of row percentages
  • Max number of group columns increased to six (useful for taxonomic distinctness)
  • Added arc sine (asin) to Evaluate Expression module

3.03

  • Bug fix: Insert rows and columns did not work in 3.02
  • Bug fix: File extension had to be typed in when saving graphic
  • Bug fix: Polynomial regression did not run
  • Bug fix: Crash in LOESS when bootstrapping with missing data
  • Bug fix: Symbols in plots were dashed when background grid was switched on
  • New option for showing group names in many plots
  • Added Number of polymorphic sites to Genetic sequence statistics

3.04

  • One-sample t test and one-sample Wilcoxon test
  • Test for single-sample proportion
  • Pie and doughnut charts
  • Font name and size can now be changed in Graph Settings
  • Geographical distance measure
  • Date/time conversion tool
  • Edit buttons added to spreadsheet tool bar
  • Bug fix: Pearson's R correlation inaccurate for very large data sets
  • Bug fix: Graphics overwrote part of text on some computers
  • Bug fix: Concentration ellipses did not show correctly on some computers
  • Bug fix: Select all from Edit menu did not work
  • Very large SVG paths did not read correctly in Illustrator - Past now splits them into pieces

3.05

  • F and t tests from parameters
  • REDFIT now does not start until hitting "Compute" button
  • Raup-Crick similarity now runs 50% faster
  • User control over color map in matrix plot, gridding etc.
  • New export file formats: NTSYS, TPS, RASC, RTF
  • Sum added to univariate summary statistics
  • Bug fix: Copy data did not work in some modules.
  • Bug fix: MANOVA did not update when constraints value was changed
  • Bug fix: Crash in spherical analysis/stereoplot
  • Bug fix: PCA loadings table showed raw loadings, not correlations when correlations selected in loadings plot
  • Bug fix: Filled convex hulls had no transparency
  • Bug fix: Broken Undo after Paste
  • Bug fix: Nonlinear fit: von Bertalanffy curve correct, but small typo in the equation shown above the plot
  • Bug fix: Coefficient of variation given as 0 when mean was negative
  • Improved handling of non-integer data for the Diversity module
  • Small fix in spatial autocorrelation

3.06

  • Clopper-Pearson confidence interval for single proportion
  • Confidence interval for many proportions, with plotting
  • Two-way repeated measures ANOVA
  • Two-way ANOSIM without replication
  • Stacked bar and area chart
  • Missing data supported in group variable for two-sample univariate tests etc.
  • Confidence interval for sample mean in one-sample t test
  • Wavelet analysis: Sampling interval can now be specified
  • Bug fix: Faulty selection of area in the spreadsheet
  • Bug fix: All columns were included in many analyses when disjunct columns were selected
  • Bug fix: Occasional crash in bivariate linear regression module
  • Bug fix: Find (search) function did not work
  • Bug fix: Garbled selection boxes in the REDFIT module
  • Bug fix: Discriminant analysis: Too many axes generated when number of groups exceeded number of variables+1
  • Bug fix: Crash in one-way ANOSIM if a group contained only one row
  • Bug fix: Landmark PCA deformation expansion factors not shown for negative PC scores

3.07

  • 3D scatter and 4D bubble plot
  • Mann-Kendall test for trend
  • Fitting of species abundance along gradient to Gaussian packing model
  • Mantel-Cochran-Haenzsel test on multiple 2x2 contingency tables
  • Confidence interval on stratigraphic range
  • Bug fix: NMDS gave inaccurate results if environmental variables were included (introduced in 3.0)
  • Bug fix: Pairwise Mahalanobis in MANOVA gave 0 instead of 'fail' for errors
  • Bug fix: Procrustes analysis overwrote group columns
  • Bug fix: K-means clustering failed for very large numbers in input
  • Bug fix: Missing numerical output in abundance distribution modelling
  • Bug fix: Excessive computation times in some modules in Mac version
  • Save image added to surface plot
  • Improved robustness of Gaussian fit in nonlinar fit module

3.08

  • Powerful scripting language, to be extended in future versions
  • Mood's median test for two samples
  • Unconditional confidence interval for individual rarefaction
  • Tamura genetic sequence distance
  • Option for using group column for box plot
  • Sorting moved to menus, and other improvements in sorting
  • Bug fix: Discriminant analysis showed blank plot for data with 3 groups
  • Bug fix: Linear regression crashed if started twice (introduced in 3.07)
  • Bug fix: Occasional crash on program exit (introduced in 3.07)
  • Bug fix: Column data type menu could get garbled (introduced in 3.07)
  • Bug fix: Small inconvenience in Row colors/symbols

3.09

  • ARMA and intervention analysis for time series
  • Tests for equality of regression slopes in bivariate fitting (OLS, MA and RMA)
  • Insolation model, 250 Ma to Recent (La2004)
  • Copy-paste now works also on graphics, but only bitmap format (you must still export to SVG for publication quality)
  • New in Transform menu: Convert to ranks
  • Many new functions in the scripting language
  • Bug fix Unitary Associations: Copy-paste did not work for some output
  • Bug fix Moran’s I: Incorrect significance line for very large sample sizes
  • Bug fix: Hidden windows now pop to front when selected again from menu

3.10

  • Circular spectral analysis for point events
  • Equal axes button in graph preferences
  • Linear regression now reports standard error of estimate
  • Scripting: New functions, including user-defined windows (forms) with labels, buttons, edits, check boxes.
  • Increased max number of items in clustering from 900 to 3500
  • Improved algorithm for single linkage clustering of large data sets
  • Drag-drop files onto spreadsheet
  • Bug fix: Remove column or row did not work after moving it
  • Bug fix: Freeze after error condition in Evaluate expression
  • Bug fix for Mac OSX: Copy-paste into spreadsheet did not work properly
  • Minor algorithm improvement in Unitary Associations
  • New application icon

3.11

  • New: Interface to Google Maps, with plotting of points, polygons and lines (Windows only)
  • New: “Graphics basket” for managing and combining plots
  • Bug fix: Copy-paste from Excel broken under Mac OSX
  • New: Nested ANOVA
  • Improved: Selection of file format for graphics export
  • New: Support for reading RASC files
  • Small fixes in Unitary Associations
  • New: Pooled and unpooled z ratio for risk difference
  • Replace now only operates in selected cells
  • Omega2 in ANOVA set to zero if negative
  • User-defined N for Monte Carlo normality tests
  • Sinusoidal fit: Frequency resolution increased from 1/1000 to 1/500,000 of Nyquist frequency
  • Thin-plate spline deformation grid can now be extended in x and y directions
  • Scripting: New functions
  • Beta diversity now takes samples in columns, not rows, to be consistent with other modules
  • Bug fix: Bivariate linear regression: Slope was not shown in the Statistics tab for RMA or MA.
  • Bug fix: Save data in other than the Past format broken in some recent version
  • Bug fix: 3D scatter plot crashed when axis ranges were very different

3.12

  • New “detach tab” button allows viewing several tabs (subwindows) at the same time
  • PCA of 3D landmarks, with 3D plotting
  • Use your own images as symbols in plots
  • Arrow plot, alternative to rose plot in circular analysis
  • Plotting of residuals in bivariate linear regression
  • Combined box and jitter plot
  • Plotting of displacement vectors in thin-plate spline deformation module
  • Contingency table analysis now includes table of residuals etc.
  • Z and t tests for probability of a single observation taken from a given sample
  • Scripting: New functions
  • Bug fix: Wrong labels on points in ternary bubble plot
  • Bug fix: Occasional error message when exiting program on Mac
  • Numerous small improvements in user interface

3.13

  • Graphics can now be exported also in the PDF format
  • Bug fix: Excessive computation time for two-sample tests on Mac OSX
  • Bug fix: Mann-Kendall test, incorrect p values for negative trend and n<11
  • Bug fix: Anderson-Darling normality test, incorrect p values for extremely large data sets
  • Bug fix: Cluster analysis, save Nexus file, faulty when using comma decimal separator
  • Max string length for x axis labels increased to 20

3.14

  • New: Point pattern statistics for counts in quadrats (Morisita’s index etc.)
  • New: Dunn’s post hoc test for Kruskal-Wallis (in addition to pairwise Mann-Whitney)
  • Bug fix: Export graphic file type selection did not work on Mac OSX
  • Bug fix: Search and replace stopped after first hit
  • Bug fix: Group labels not shown for small groups (n<3) in x-y plots
  • Bug fix, NMDS: Missing values (?) in environmental variables not handled correctly
  • REDFIT: Maximal oversampling increased to 64
  • Neighbour joining: Root (outgroup) can now be selected in menu
  • Normality tests now recognize samples marked as groups
  • Survival analysis: Censoring events can now be plotted on the Kaplan-Meier curves

3.15

  • Tukey’s post-hoc tests for two-way ANOVA
  • Permutation test for correlation and one-way ANOVA
  • Mosaic plot for 2-way and 3-way contingency tables
  • Stem plot
  • Distribution-free confidence intervals for stratigraphic ranges
  • Max N for wavelets increased to 130,000
  • Improved histogram plots
  • Univariate summary statistics now supports groups
  • New in Regular interpolation: Option for antialiasing (sinc) interpolation
  • Sorting now supports both types of decimal separator
  • Remove uninformative rows/columns: New option to remove constant-valued rows/columns
  • Bug fix, Ward’s method clustering: Missing data not handled properly
  • Bug fix: Setting row colors/symbols required user to select some data in addition to a group column
  • Bug fix: Scatter plot labels sometimes disappeared at edges of plot
  • Bug fix, CCA: Table of scores did not update when changing the scaling type

3.16

  • Package for stratigraphic charts/well plots with multiple panels and plot types
  • Hill’s equation added to Nonlinear Fitting
  • Logarithmic axes options in Graph preferences
  • Mean-and-errors plot added to Bar chart-Box plot module*
  • 3D line plot
  • 3D parametric surface plot
  • Wavelets: Option for linear scale axis. New function showing wavelet-filtered time series.
  • Paired univariate tests: Max N for exact test reduced from 25 to 22.
  • Scripting: Added functions cov, eig, linfit
  • Bug fix: Bivariate linear regression, plot of residuals did not handle missing values
  • Bug fix: 3D surface plot, vertical exaggeration did not work
  • Bug fix: Spherical data, stereoplot, density map was not quite centred on the data

3.17

  • Epps-Singleton test for equal distribution in two samples (alternative to Kolmogorov-Smirnov)
  • New plotting functions for correlation matrix
  • Option for Bonferroni correction in correlation table
  • Bingham test for spherical (axial) data
  • Plotting of planes as great circles in stereonet (spherical data)
  • Binomial proportion added to single-sample tests
  • van Krevelen diagram option added to XY Graph (it’s a geochemistry thing)
  • Search-replace can now search for empty cells (use search string ‘empty’)
  • Tukey’s post-hoc test for one-way ANOVA, repeated-measures ANOVA and two-way ANOVA now use a slightly more accurate approximation for the p value (Copenhaver & Holland 1988)
  • Row labels option in matrix plot
  • Bug fix: Slightly imprecise Tukey’s post-hoc Q and p values for one-way ANOVA with unequal sample sizes
  • Bug fix: Setting Row colors/symbols now honours the previous colors/symbols for the groups
  • Bug fix: PCO with degenerate data did not terminate (rare occurrence)
  • Bug fix: Slow paste of large data sets
  • Bug fix: Sorting only worked for all-numeric data
  • Bug fix: “Rearrange -> Observations to contingency table” did not delete missing values
  • Bug fix: Slightly inaccurate placement of labels in neighbour joining clustering

3.18

  • Anderson-Darling test for equal distributions
  • Density plot in ternary diagram
  • Row normalize length (Transform menu)
  • Permutation tests for covariances in PLS
  • Savitzky-Golay method added to Simple smoothers
  • RASC: Added variance analysis (deviation from line of correlation)
  • Transform landmarks: Rotate point cloud by arbitrary angle
  • Bug fix: Paste caused freezing (bug introduced in 3.17)
  • Bug fix: Occasional freeze in contingency table analysys
  • Bug fix: Ternary diagram gridded map (4th column plot) clipped at bottom
  • Bug fix: Moran’s I table did not update when changing bin number

3.19

  • Random-effects ANOVA, one-way and two-way, with variance components
  • Prais-Winsten linear regression for data with serially correlated residuals
  • Violin plot (in box plot module)
  • Box plot: Option for “notches” (confidence interval for median)
  • Box plot: Default quartile method changed to “Interpolation”
  • Nonlinear fit: Option for forcing the constant term to zero.
  • t test and F test: Reporting of critical value of the test statistic
  • Diversity indices: Option for “unbiased” versions of Simpson and Shannon-Wiener
  • New “Recover windows” button for those disappearing windows (old bug)
  • Rose plot: Visual improvements
  • Mosaic plot: Option to hide zero cells
  • Observed S added to Quadrat richness
  • Normal probability plot now accepts several samples (columns)
  • Bug fix: Formatting of individual rarefaction table when error bar bars not included
  • Bug fix: Copy button in Anderson-Darling test did not work
  • Bug fix: y=0 values were not accepted for several functions in nonlinear fit
  • Small quality improvements in SVG and PDF export

3.20

  • Wavelet analysis for time series with unequal spacing (Weighted Wavelet Z-transform)
  • CABFAC factor analysis of ecological data, with calibration (environmental reconstruction)
  • Correlation length analysis for point patterns (alternative to Ripley’s K)
  • Minimal Spanning Tree analysis for point patterns (alternative to Nearest Neighbours)
  • Linear regression of 3D landmarks, with 3D visualization
  • Ctrl-key shortcuts changed to Cmd-key on Mac
  • Option for colour coding of third variate in bubble plot
  • Option to set number of displayed decimals in the spreadsheet
  • Improved clipping of plots to graphics window
  • Improved XY plot for multiple XY graphs (pairs of columns can be given colours and symbols)
  • Numerical output added to normal probability plot
  • Bug fix: Incorrect scaling of Moran’s I (spatial autocorrelation)
  • Bug fix: Anderson-Darling two-sample test was incorrect for N>650
  • Bug fix: Kruskal-Wallis test did not handle missing data correctly
  • Bug fix: Export of 95% ellipses to PDF was inaccurate

3.21

  • Plotting of user-defined lines and polygons (links) in 2D and 3D landmark PCA, landmark linear regression and thin-plate splines
  • Radar (spider) plot
  • Analytical rarefaction of Shannon’s H and Simpson’s D (no confidence intervals yet)
  • 3D scatter plot now supports the different symbols, not only dots
  • Bug fix, contingency tables; limit on table size for Fisher’s exact test was too strict
  • Bug fix: Plotting of data with extremely small maximum values (<1e-10) could crash.
  • Bug fix: Improved formatting of very small values on graph axes.
  • Bug fix: Mann-Whitney test failed for extremely large sample sizes (N>20,000)
  • Bug fix: Copy graphic button did not work in the Diversity menu
  • Bug fix: No colour legend displayed for bivariate linear regression on multiple columns

3.22

  • New option in cluster analysis: Constrain clustering to given groups, and collapse clusters to the groups.
  • Common Allometric Components analysis for 2D landmarks
  • Function to fill cells with value (useful for several things)
  • Symbol size can now be set to 0, allowing only convex hulls or concentration ellipses to be plotted, not the individual points
  • Graph plot now allows plotting also by rows, not only columns
  • Pie chart, stacked chart, radar chart: Treatment of missing values improved.
  • Column widths, if changed by user, are now saved with the Past file.
  • Text export of concentration ellipse parameters
  • Bug fix: Standard error on the intercept in RMA and MA bivariate regression was incorrect
  • Bug fix: Excessive line width of concentration ellipses in exported PDF
  • Bug fix: Export of degenerate (zero-size) concentration ellipses to PDF gave warning message in Acrobat Reader
  • Bug fix: Summary statistics, calculation of 25th and 75th percentiles failed for N<4
  • Bug fix: Two-way PERMANOVA crashed for data sets with more than ca. 10,000 columns

3.23

  • Network plotting
  • Common Allometric Components analysis for 3D landmarks
  • WA-PLS added to calibration methods
  • Lilliefors test added to tests for normal distribution (although inferior to Shapiro-Wilk and Anderson-Darling)
  • Confidence interval for ratios of counts (as used in some faunal indices)
  • Improved handling of missing values in Simple periodogram; FIR filter; Short time Fourier analysis; wavelet analysis.
  • Help texts added to 11 modules (to be continued in future versions)
  • Bug fix: Google Maps was not working anymore after a version compatibility problem
  • Bug fix: Highpass option in FIR filtering was not operational
  • Bug fix: Some modules crashed the program if only group columns were selected
  • Bug fix: Axis labels sometimes had excessive trailing zeroes

3.24

  • Histogram: Confidence intervals (Clopper-Pearson), and numerical output.
  • Graph and XY graph: Silhouette plot option
  • Pie chart: Support for multiple pies (columns)
  • Discriminant analysis: New option for showing matrix C or WcovC in the loadings table
  • Stratigraphic chart: Numerous improvements and bug fixes
  • Bug fix: Range of grid made more robust in Thin Plate Spline Deformation module.
  • Bug fix: Matrix plot and similar plots could get white spots after opening and closing the graph settings window
  • Help texts added to 12 modules

3.25

  • Change point analysis for univariate and multivariate time series
  • Non-local means denoising added to “Simple smoothers”
  • Bihistogram option added to Histogram module
  • SVG export now supports “foreign” characters (e.g. Ø, ü, ô)
  • Google Maps: Quality improvement in plotting of points (symbols).
  • When plotting several bivariate regressions, the points now get distinct colors
  • CCA: Option for estimating site scores of “mystery rows” without environmental data
  • Bug fix: Column type ‘Nominal’ not read when opening a Past file
  • Bug fix, Correlation: Correlation ellipses not rendered properly in SVG for R=1 and R=-1
  • Help texts added to 12 modules

3.26

  • Bug fix: Polyserial correlation did not do anything
  • Bug fix: Correlation matrix ellipses had wrong orientation for r<0 (bug introduced in 3.25)
  • Bug fix: Showing outliers in box plots caused error message
  • Bug fix: Discriminant analysis (LDA) crashed when number of groups exceeded number of variates (bug introduced recently)
  • Bug fix: Lines in the graphics basket module were invisible
  • Bug fix: Range check error in Google Maps polygons (bug recently introduced)
  • Better centering of group labels
  • Bar chart (Graph module) now shows the row colours
  • Help text added to 11 modules

4.0

  • The first 64-bit version of Past, allowing even larger data volumes
  • Google Maps and scripting disabled, hopefully to return in next version
  • Polar plot
  • Bug fix: XY graph crashed for non-numerical data values
  • Bug fix: Labels shifted vertical position when rotated
  • Bug fix: Mann-Whitney test failed for very large N (>45,000).
  • Bug fix: Normal probability plot correlation coefficient incorrect for very large N (>45,000).
  • Bug fix: Individual rarefaction crashed when restarting with window open.

4.01

  • Scripting re-introduced
  • Google Maps re-introduced
  • Bubble plot and bar chart options added to Google Maps
  • Help text added to 42 modules
  • 3D surface and parametric surface background changed to white
  • Bug fix: Nonlinear fitting: Zero-constant option did not work for power and exponential functions
  • Bug fix: Pie chart crashed for all-zero columns
  • Bug fix: Occasional crash in Short-time Fourier Transform
  • Bug fix: SVG export of matrix plot gave interpolated image even with interpolation turned off
  • Bug fix: “Replace” function very slow for big data sets
  • Bug fix: “Model->Species packing” crashed for all-zero and singleton columns
  • Bug fix: “Model->Bivariate” crashed when restarting without first closing window

4.02

  • Google Maps replaced with Open Street Maps (because free limit on Google Maps calls was exceeded).
  • Added compositional data transforms (ALR, CLR, ILR).
  • Changed the color selector for rows.
  • Confidence interval for forecast added to bivariate regression.
  • Past can now be started by clicking on a data file, if you set the association manually (“Open with”).
  • Help texts added to 20 modules
  • Bug fix: Save as type other than Past did not work (this is not an option on Mac)
  • Bug fix: Dragging (moving) columns in the spreadsheet possibly fixed
  • Bug fix: Smoothing spline: Copy-paste of the “Given points” table did not work

4.03

  • Redundancy Analysis (RDA)
  • One-way PerMANOVA now includes repeated-measures (paired) design.
  • Color selector for rows reverted to old (pre 4.02) type (new type optional in the Row colors/symbols module)
  • Diversity module: Bootstrapping made optional, and speed improvement
  • Permutation test added to repeated-measured ANOVA
  • NMDS now reports distances to group centroids
  • Individual rarefaction now includes option for plotting all samples at smallest N
  • Mann-Kendall test now reports the z statistic with sign (not absolute value)
  • Help text added to 16 modules
  • Bug fix: Changepoint analysis crashed on Mac
  • Bug fix: Bivariate linear regression with log-log transformation: reported residuals were not transformed
  • Bug fix: Incorrect plotting of convex hulls in some special cases
  • Bug fix: Delete uninformative rows did not work for genetic data

4.04

  • Parsimony (cladistics) module 
  • Size-proportional Venn diagrams for two and three sets 
  • Phi measure for compositional data added to Correlation module 
  • More colour options in Graph preferences, including the viridis palette 
  • Help text pointers redirected to new web location 
  • Bug fix: Bivariate linear regression with missing values (?) could crash 
  • Bug fix: Box plot fail for some pathological data 
  • Bug fix: Discriminant analysis crashed for data with less than 4 variables but more than 5 groups 
  • Bug fix: Anderson-Darling test was inaccurate for data with many ties (equal values) 
  • Bug fix: Bingham test for spherical data crashed for very large departure from uniform distribution 
  • Bug fix: Contingency table: Limits for table size for Fishers exact test reduced further to avoid hang-ups 
  • Further improvements in Stratigraphic chart (but still not bug free) 

4.05

  • New module for digitizing point co-ordinates, directions and distances from images. 
  • Outlier tests (Grubbs’ test, Dixon’s test, generalized ESD). 
  • Indicator species analysis (IndVal). 
  • Stratigraphic chart: Added lithological column with symbols for a number of rock types. 
  • Unitary associations: Added listing of Z4 cycles in the biostratigraphic graph 
  • One-way ANOVA: Added joint confidence intervals for pairwise group differences. 
  • Histogram now accepts data with a group column. 
  • Nonlinear fit: Slight change of parameterization for Hill’s equation. 
  • Nonlinear fit: Improved fit for Hill’s equation with zero intercept 
  • Principal Coordinates Analysis now runs ca. 4 times faster for large data sets, but only for non-singular distance matrices 
  • Bug fix: Symbols did not show on Open Street Maps (bug caused by the relocation of the Past web page) 
  • Bug fix: Repeated measures PERMANOVA pairwise tests crashed (bug introduced in 4.03) 
  • Bug fix: Survival analysis crashed (bug introduced in 4.04) 
  • Bug fix: Univariate summary statistics crashed for N>1290 (bug introduced recently) 
  • Bug fix: Kendall’s tau in the Correlation module failed for N>1290 
  • Bug fix: Univariate two-sample tests and several-sample tests crashed for “pathological” data, on Mac only 
  • Bug fix: Minimal spanning trees in ordination plots were computed in the plotted space, not in the original high-dimensional space 
  • Bug fix: Small adjustment to the p value in Mann-Kendall trend test for very small p and n<=10. 
  • Bug fix: Vertical displacement of text in SVG and PDF exported files when the “Font rotation” setting is set to zero

4.06

  • Diversity indices for abundance data: New indices ACE and iChao1 (“Improved” Chao1).
  • Diversity indices for abundance data: Analytical confidence intervals for Simpson, Shannon, Fisher and Chao1.
  • Radiocarbon calibration
  • NMDS: Option for plotting column scores as weighted averages of row scores
  • PCA: Added Bartlett’s test for sphericity, and the Kaiser-Meyer-Olkin measure of sampling adequacy
  • Two-way PERMANOVA now supports unbalanced designs
  • Contingency table: p values with Bonferroni correction added to the post-hoc analysis
  • Row colors/symbols: New Auto buttons for setting colors and symbols on all groups
  • Box plot etc.: Option for arbitrary x positions, and slider for box width
  • Added random/fixed effect option to two-way nested ANOVA
  • Bivariate linear regression: Added bootstrapped 95% confidence band for OLS, RMA, MA and robust
  • Diversity indices for abundance data, Shannon index: Added options for log2 version, and for bias correction with the ACE richness estimate.
  • Clustering: Option to rotate the dendrogram 90 degrees
  • Linear multivariate regression with 1 independent variable: Missing values in the independent variable are now disregarded instead of mean-value imputed.
  • Support for Cyrillic letters in SVG graphic export
  • Edit->Rearrange menu: Removed “Observations to contingency table” (superfluous) and added “Rows, cols, values to table” function.
  • Bug fix: Transform menu, most of the functions were confused if group columns were included in the selection
  • Bug fix: Two-way ANOVA interaction term was slightly inaccurate for unbalanced designs
  • Bug fix: Two-way nested ANOVA p value slightly inaccurate for small N
  • Bug fix: Phi correlation for compositional data crashed when vectors were identical
  • Bug fix: Shannon index, bias corrected version was slightly inaccurate (of no consequence for reasonable sample sizes)
  • Bug fix: “Filter” function in wavelet analysis crashed when scale slider moved to max
  • Bug fix: Leading and trailing spaces causing problems in group columns, now disregarded
  • Bug fix: Unitary Associations crashed when only one UA was found

4.07

  • Nonlinear ordinations: Spectral embedding and UMAP

  • Test for multivariate dispersion (PERMDISP)

  • Cluster analysis: Two-way dendrogram improved, with heat map for the data matrix

  • PCA: Added support for supplementary variables (“passive projection”)

  • Repeated-measures ANOVA: Added sphericity estimates and corrections (Greenhouse-Geisser and Huynh-Feldt)

  • Polynomial regression: Added bootstrapped confidence intervals

  • Correlation matrix plot: Option for displaying the R values as numbers

  • Nonlinear fit: Added R^2 statistic

  • WA-PLS: Added output of the species optima

  • Open Street Map: New implementation

  • Bug fix: Wavelet analysis crashed for long time series (bug introduced recently)

  • Bug fix: Two-sample tests crashed in rare cases, due to a failure in the Epps-Singleton test

  • Bug fix: Calibration with CABFAC crashed 

4.08

  • Open Street Map: Added pie charts, row labels, improved plotting of dots/symbols

  • Tetrachoric (binary) correlation added to correlation module

  • Vector plot

  • Species packing model (Gaussian): Added R-squared statistic

  • Abundance distribution models now accepts multiple samples (columns)

  • Double-clicking on spreadsheet row or column header now opens the “Attributes” cells

  • Bug fix, NMDS: Problems with labels and table output for column weighted averages

  • Bug fix, individual rarefaction and taxonomic distinctness: Crashed for missing data

  • Bug fix, MacOS: Printing did not work

  • Bug fix, MacOS: Help system did not work

  • Bug fix, MacOS, saving graphic: At least now it doesn’t crash, but you must type in the file extension (e.g. .svg or .jpg) manually. MacOS sandboxing does not allow Past to set the file name extension automatically.

  • Bug fix, MacOS: Rare crash in Epps-Singleton test

  • Bug fix, MacOS: Rare crash in PCA

4.09

  • Bayes factor added to t test and paired t test

  • Multitaper spectral analysis now includes significance levels (Mann & Lees 1996)

  • Clustering statistics added to k-means module

  • ANOVA table added to bivariate linear regression

  • Change point analysis: More numerical output added

  • Bug fix, classical clustering: Similarity values reported as negative on the y axis of the dendrogram

  • Bug fix: classical clustering: Improved handling of large data sets (N>800)

  • Bug fix, PCA: Last variable was not reported in the “Loadings” table.

  • Bug fix, Common Allometric Components 2D: Graph preferences button did not work

  • Bug fix, Windows: Exporting graphic failed if file extension was not specified by user

  • Bug fix, MacOS: Occasional crash in Diversity Indices module

  • Bug fix, MacOS: Open Street Map crash on replot

4.10

  • Phylogenetically Independent Contrasts

  • Shareholder Quorum Subsampling for species richness estimation

  • K-medoids clustering

  • Functions for manipulating a collection of trees (used by new tree analysis modules)

  • Bayes factor added to one-way ANOVA and correlation (Pearson’s r)

  • Network plot: Several improvements in the graphics

  • Discriminant analysis: Centroids added to output

  • Scripting: Clickmenu function for automating menu selections

  • Bug fix: Find-Replace broken in some recent version

  • Bug fix, PerMANOVA: Incorrect F value in the repeated-measures mode for more than two groups (p value was OK)

  • Bug fix, mixture analysis: Inaccurate AIC

  • Bug fix, neighbour joining clustering: Improved handling of large data sets (N>800)

  • Bug fix, MacOS: Occasional crash in Diversity Indices module

4.11

  • K-means and k-medoids clustering now include silhouette plot and statistics

  • K-means clustering now includes random seed option for repeatable results

  • Sorting can now also be done on the row names

  • Row colors/symbols module now allows changing only colors or only rows

  • Matrix plot: Row labels now show row colors

  • Two-way clustering: Option to save heat map as data file

  • New scripting function cumulnorm(x, sigma)

  • Bug fix, remove spreadsheet rows did not work (bug introduced in 4.10)

  • Bug fix, neighbour joining: Only first 10 items included in the re-root dropdown menu (bug introduced in 4.10)

  • Bug fix, multivariate dispersion test: Rare crash causing NANs in sums-of-squares (bug introduced in 4.07)

  • Bug fix, two-way nested ANOVA: Now gives error message for unequal numbers of second-factor levels within each first-factor

  • Bug fix, WA-PLS: Graph settings button not working

Published Aug. 24, 2020 1:55 PM - Last modified June 17, 2022 1:01 AM