Release History

The table below lists the improvements and bug fixes of the last DataLab versions. The latest release can be loaded from the download page.
 

Release 2.599 [2008-Mar-15]

New Features col/row name generator frequency tables and percentiles Improvements many minor improvements and adjustments MLR allows for empty data cells correlation table now offers a way to copy its contents into the matrix clipboard FFT user interface improved the histogram chart allows to setup the bin boundaries exactly (in addition to the automatic display) histogram now shows optional normal distribution quartiles now deliver more appropriate values if data sample is of very small size numeric editor now allows to toggle "empty" state of data cells Bug Fixes opening an XLS or CSV file when Excel has opened it does no longer generate a general access violation context menu of univariate statistics allowed changes of the data matrix correlation function calculates now correct results (value were slightly off) inactive marks are now displayed correctly histogram of matrix rows did not include all cells of a row if the matrix contained more columns than rows Gauss function does no longer crash if used in expressions

Release 2.598 [2008-Feb-11]

New Features multi-segment curve digitizer implemented empty cells in data matrix are now supported Improvements formula interpreter now understands "sign" function XLS import improved: import row and columns headers can be imported now; formulas are converted to numbers (if possible); non-numeric cells are now imported as empty cells (instead of zero values) help file improved the delimiter of CSV files can now be set in the general operating parameters number significant export digits and placeholder for indefinite values are now stored in registry variable and object selector windows now allow the selection of ranges in the matrix view 1-sample t-test is now performed for both groups (A and B) separately popup menus improved German translation of protocol for outlier tests Bug Fixes printing a protocol as PDF does no longer crash the program entering a comment on the data matrix does no longer create a range check error

Release 2.593 [2008-Jan-30]

New Features sorting of row and column names implemented PCA: details of protocol can now be exported as CSV file script language extended by a few commands: Initialize, Math, Summary Improvements evaluation copy now allows to activate license during startup of program cluster analysis now provides for scaling of data Dean-Dixon outlier test improved (better result page) dendrogram now offers to set the orientation of the diagram and the scaling of the data IDT files have new format in order to include cell states IDT files have now less volume editor of row and column names improved distribution calculator improved PCA: protocol now shows variable and object names matrix clipboard improved Bug Fixes various minor bug fixes printing to a PDF now works as expected (Adobe engine crashed due to missing title) t-Test for paired samples did not work correctly if marked samples were arranged in rows math formulas now process unary minus and plus signs correctly PCA of all-zero matrices does not crash DataLab anymore zoom window in dendrogram now works as expected

Release 2.590 [2008-Jan-22]

New Features Fourier transformation (FFT) implemented Linear Discriminant Analysis (LDA) implemented syntax of range definition in mathematical formulas changed ('..' is replaced by ':') signal integration implemented loading/saving CSV files (comma separated files) implemented loading of XLS files (MicroSoft™ Excel™) implemented random number generator implemented test for significance of correlation implemented Improvements DataLab now remembers the current data file when exiting and reloads it during start-up c2-test: critical values are now both listed for c(alpha) and and c(1-alpha) protocol of statistical tests now also show boxplots of tested data (when appropriate) Kurtosis and Skewness are now calculated using the unbiased estimation correlation table now allows to mark extreme values (both negative and positive) and significant values in different colors linear regression now indicates the ideal distribution of residuals and allows to set the confidence level for estimated values univariate statistics are now calculated for marked data A and B (logical AND of A and B) matrix view now has a delete button script engine improved and unified Bug Fixes logarithmic display does no longer crash under certain circumstances (when AutoZoom is on) some popup menus and messages are now translated to German (in the German version) DataLab crashed when extracting data from the clipboard and the clipboard did not contain a single number data marking dialog: marking values above/below threshold works now as expected extraordinary ressource consumption fixed when eyedropper in plot window is down

Release < 2.590

Release history of versions before 2008 has been deleted for brevity