VOStat Change Log
Features in VOStat beta jsp 1.0 (Web based version) Release date 14th Nov 2008
Output is displayed in a tabular format
Change in output heading
. Reduce the width. Option to plot boxes separately (for different units & ranges) and together (same units, similar ranges)
Download matrix.. Display values only up to four digits. User can choose no of decimal places and rerun the test .Default is 4.
Display only martix
Display 4 digits only. Dotchart is added under 'Descriptive statistics'.
Empirical Distribution Function.
Remove circles on the plot
Display and download cluster memberships. Rename "H clustering" to "Hierarchical clustering"
Display and download cluster memberships. Some changes in output display.
Removed Sturges and Class interval. Save & download list of breaks and counts.
Droped cosine and Optcosine options.
"Automatic" option with gaussian kernel and bandwidth.nrd for bandwidth.
"Manual" option where user sets kernel type and bandwidth.
Download curve at ~500 points.
Kolmogorov Smirnov one sample test
In Gaussian distribution fun = dnorm and plot with pnorm. In exponential distribution fun = pexp
Display the value of statistic, change table value to tabulated value and removed Dnmax and $statistic
One sample and two sample t-test
Add selected column/s, display mean of x, removed t-obs and $p.value
Kolmogorov Smirnov two sample test
Add plot of the two ecdf's
Use pch= 20, col=1.
Principal Component Analysis
add covariance matrix, add correlation matrix
In covariance matrix output , replaced rotations by loadings
Display output header according to the matrix selected
Use princomp and prcomp, calculate and display eigen values
Quantile Quantile Plot
Testing for mean when variance is known
Moved to Descriptive statistics, and renamed as "Bivariate plots".
Single or Multiple linear Analysis
Features in VOStat v1.1 beta (Stand alone version) Release date 14 Nov 2008
Features in VOStat v1.0 beta (Stand alone version) Release date 17 Aug 2007