A beta version of
the upcoming statistiXL Version 1.6 is now available for
download . No licence key is required for trialling
this version. Barring major bug reports, we hope to release the final
version of statistiXL 1.6 around March 4th. Changes to this release
include:
-
The Wilcoxon Paired-Sample Test has been completely revamped. A bug
within the Wilcoxon routine caused statistiXL to present incorrect P values
when the paired datasets contained tied values (i.e. when the value for a given
row was the same in each set). The Wilcoxon module has been completely
rewritten to remove this bug and to expand the power of the analysis.
statistiXL now allows the user to perform a standard Wilcoxon analysis
(which effectively ignores tied values) and a more powerful analysis that
compares the two data-sets taking these tied values into consideration.
This new analysis is a closer approximation of the parametric paired t-Test and
is a feature not found in many statistics packages. Due to the
importance of this fix we would urge all users of statistiXL to upgrade to this
new version.
-
Previous versions of statistiXL suffered a performance hit when running on
workbooks containing many formulae and with Excel's Automatic Calculation
feature enabled. statistiXL's speed in this situation has now been
greatly improved.
-
In previous versions of statistiXL the nonparametric Mann-Whitney U Test
would fail for large sample sizes. This limitation has now been removed by
introducing a normal approximation to the U statistic for such large samples.
-
Multiple and partial correlation analyses now display the correct descriptive
statistics. In previous versions, the descriptive statistics displayed
were for the 'X Variables'. This has now been replaced with the proper 'Y
Variable(s)' descriptives.
-
Goodness-of-Fit tests no longer fail when expected values= 0.
-
Lines are no longer drawn between adjacent box plots in Excel 2003.
-
Histograms are now possible with a much larger number of divisions (i.e. a
greater number of columns).
Any comments on this release should be made via the
Support Forums or by email to support@statistixl.com.