Update History
- Version 2.0 (beta release 7.29) (May 1, 2008)
- New
- Analyses
- Bearing correlograms
- Mantel bearing correlograms
- Windrose correlograms
- Mantel windrose correlograms
- Moving Split-Window distances for boundary detection of 1D/transect data
- Wombling: categorical and continuous for both raster/surfaces and scattered data
- Agglomerative clustering
- Dispersion Indices
- Point-Polygon relationships
- Data
- Polygons and Lines now have coordinate systems in the same manner as point data
(xy, lon/lat, or UTM)
- Coordinate study plots based on polygons are now specified by attaching a polygon
matrix rather than as a list of coordinates. This should allow more complicated study
plot shapes as well as making import of a study boundary easier.
- New data matrix type: Boundaries – these represent specific types of data as produced
by methods such as Wombling
- Data within boundary matrices can be extracted to other data types
- Polygons or lines from different matrices can be merged into a single matrix
- Polygon and lines can now be exported to text and spreadsheet formats
- Miscellaneous
- Added squared Euclidean distances as a distance measure for data
- Added function for constructing a set of coordinates which represent the positions of a
set of polygons
- Graphics
- When graphing continuous variables using a color gradient (e.g., for points, polygons,
or tessellations), one can now optionally use the ranks of the variable rather than the
raw values
- When graphing line sets, you can now use colored variation, thickness, and style, based
on an external variable in the same manner one can already use to differentiate between
points and polygons
- Draw/map boundaries and/or add boundaries to other plots. Can also display boundaries
as individual elements, vectors (for continuous wombling), or as connected subboundaries.
Individual elements/vectors can also be color coded to represent the magnitude of change
associated with the boundary element.
- Surface maps can now be plotted alongside other map elements.
- Fixed
- Added error checking and generally cleaned up the point-line relationship analysis
- Added batch commands for converting connections/tessellations to polygons/lines,
point/line relationships, angular wavelets, and LISAs
- Missing error message for invalid values of Lambda when calculating Minkowski distances
- Conversion of connection matrices to line matrices was creating each individual line twice
- Bug in copying the study plot correctly when a coordinate matrix was copied
- Values associated with lines can now be represented by different line styles when mapped
- In Windows Vista, Aero effects such as taskbar preview and window scroll should now be
enabled
- Changed
- Some minor font changes
- Split the analysis toolbar into multiple smaller toolbars
- Removed
- Option for plotting background maps; this became unnecessary when polygons were added as
a data type
- Version 2.0 (beta release 6.17) (February 15, 2008)
- Fixed
- JoinCount analyses were generating an error when used with a connection matrix
- Modified t-test for correlation
- Computational bug in estimate of covariance & CRH correction; with large numbers
of points, the error was subtle/minor, but with small data sets the error could be very
large
- No longer generates error if a column of data contains no numeric values
- Mantel tests
- Computational problem with partial Mantel tests consisting of 4 or more matrices
(classic 3 matrix partial Mantel tests unaffected), involving improper matrix
multiplication
- Memory leak in partial Mantel tests consisting of 4 or more matrices
- Memory leak in any partial Mantel test which included permutation tests
- Replaced approach for storing data for the permutation tests of wavelet analysis;
the new approach has substantially lower memory requirements (~95% reduction in memory
usage)
- Added some file error checking when importing images
- Changed one last stray reference of alpha version to beta version
- New
- Added LISA/Getis-Ord analysis
- Note: No graphical output at this time
- Note: Batch command is not yet active
- Added option for turning on a timestamp that will record the date/time of the beginning
and end of analyses in the output, as well as the computational time
- Coordinates can now be directly saved in ArcInfo shapefile format
- Added initial support for polygons and polylines as data types
- Import/export as ArcInfo Shapefiles
- Import/export as PASSaGE format
- Import/export polygons (only) as Surfer BLN files
- Mapping/drawing in plots
- Connections and tessellations can be converted to lines and/or polygons (as appropriate)
- Note: Batch command is not yet active
- Added preliminary method for analyzing point-line distances
- Note: Batch command is not yet active
- Added ability to plot/map lines, polygons, tessellations, and connections without first
plotting points
- Removed
- Export to Arc/Info Shapefile option
- This would export coordinates, tessellations, or connections to shapefiles. It is no longer necessary
since coordinates can be directly saved as shapefiles and tessellations and connections can be converted
to lines/polygons which can be saved as shapefiles
- Note - The addition of polygons and lines as data types will eventually lead to a number of changes which are
not completely implemented yet. This includes:
- Replacing the limited “polygon” style study plot with a formal and full polygon data type
- Removing the background map option from plotted points (and similar data). Since these background maps were
essentially just specialized polygon files and polygons can now be loaded as data and mapped, it makes more
sense to just use polygons for that purpose rather than sending them through a special conversion process for
PASSaGE.
- Version 2.0 (beta release 5.14) (November 9, 2007)
- Fixed
- First public release was marked as "Alpha" when it should have been "Beta"
- Fake error generated when "Arrange" was chosen from Windows menu
- JoinCount and Correlogram would not correctly allow/use nonbinary weighting with a connections matrix
- JoinCount Analysis
- GUI was not properly checking for correct choices before enabling the OK button
- The # of pairs per class was being reported as double the actual number
- Potential major computational error in counting and identifying the class memberships in Join Count analysis; could effect counts within and across class types
- Distance class creation
- Reporting the wrong count for points within a class for the smallest class (1 too many) and the largest class (1 too few)
- Fixed two errors in distance class creation when manually editing class boundaries
- Error in importing Multipoint, MultiPointZ, and MultiPointM shapes from Arc/Info shape files
- Spectral analysis
- Spectral analysis now automatically chooses first column when a data matrix is specified
- Error generated by canceling a spectral analysis
- New
- Added function for creating a connection matrix from a set of distance and distance classes
- Coordinate matrices, tessellations, and connection matrices can now be exported to Arc/Info shape files
- Added batch command for spectral analysis
- Added marker for nonsignificant values in correlogram (and similar) plots
- Correlograms: when plotting data added option to specify alpha significance and option for plotting confidence intervals
- Randomization test for spectral analysis
- Added an option for outputting a table of nearest neighbor distances; this option has been in version 1 but had not been included in version 2
- Version 2.0 (beta release 5.1) (August 30, 2007)
- First public beta release.
- Version 1.1 (release 3.4) (March 8, 2005)
- Fixed major error in edge correction of second order analysis (Ripley's K and L).
- Version 1.1 (release 2.4) (August 23, 2004)
- Fixed error in Bonferroni correction of the overall significance of Moran's I
correlograms (Geary's c correlograms were correct). This is not a correction of
the significance of the individual autocorrelation coefficients, but rather an adjustment
of the signficance of the correlogram as a whole.
- Version 1.1 (release 1.3) (June 12, 2003)
- Fixed error in join-count analysis which would cause large data sets to crash
- Fixed error in calculation of spherical angles when points were extremely close together
- Fixed error in printing the contents of the output window
- Fixed incorrect label when loading distance matrices
- Numerous internal updates
- Version 1.0 (release 3.8) (January 21, 2003)
- Fixed two errors associated with surface wavelets, one graphical and one computational. The results from any previous analysis using surface wavelets were incorrect (transect wavelets were not effected by this error).
- Expanded bitmap conversion to include a variety of additional image formats
- Revised Random Point Patterns under Simulation, and added the simulation of transects and surfaces (purely random at this time)
- Updated manual
- Version 1.0 (release 2.17) (October 4, 2002)
- Fixed error in quadrat-variance methods for rectangular surfaces (mixed up row/col)
- Fixed error which prevented maps from being drawn in the coordinate plot
- Fixed error in drawing post plots incorrectly
- Fixed slight bug in surface plot where the last row and column were not being plotted correctly for very small surfaces
- Added routine to convert bitmaps into data matrices
- Added option for number of decimal places to output when saving matrices
- Added ability to perform quadrat variance analyses on multiple transects simultaneously
- Expanded Grid Data procedure to allow user specification of grid area and the option of choosing between grid cell size or number
- PASSaGE is now more CPU friendly while running analyses
- Version 1.0 (release 1.0) (December 6, 2001)