Summary Statistics 
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The statistics for your data set can be inspected using the Summary: Summary Data drop down.
This will open the General Statistics window, which gives statistics for the data set as a whole, for the Species, and for the Samples; you can select which set of statistics to view from the bottom bar of the General Statistics window.
These grids are sortable. To sort any column click on the topmost cell to activate the sort function. Clicking again will sort in the other direction, the third click will turn off sorting.
No. of species (rows)  This is the number of rows of data in the data set. No. of samples (cols)  This is the number of columns in the data set. No. of zero cells  This is the number of zero entries in the data matrix. NonZeros  The number of nonzero entries % Zeros  (Number of zeros/Total number of cells)*100 Maximum value  This is the maximum value in the data matrix. Minimum value  This is the minimum value in the data matrix. Range  This is the difference between the maximum and minimum values. Mean  This is the mean of all the values in the data matrix. Standard deviation  This is the standard deviation of all the values in the data matrix. Median  This is the median of all the values in the data matrix.
To examine the statistics for each sample click on Samples at the bottom of the window.
This will display statistics for each sample.
The statistics for the samples can be displayed in similar fashion by clicking on Species.
Mean  This is the mean of all the values in each row or column of the data matrix. Median  This is the median of all the values in each row or column of the data matrix. Max  This is the maximum value in the data matrix. Min  This is the minimum value in the data matrix. Zeros  The number of zero entries in the data matrix NonZeros  The number of nonzero entries % Zeros  (Number of zeros/Total number of cells)*100 Sum  This is the sum of all the values in each row or column of the data matrix. SumSqr  This is the sums of squares of all the values in each row or column of the data matrix. Skewness  This is the skewness of all the values in each row or column of the data matrix. Kurtosis  This is the kurtosis of all the values in each row or column of the data matrix.
For Samples only Total Variance  This is the variance of all the values in each column of the data matrix. Sample Variance  This is the estimate of the variance of all the values in each column of the data matrix.
For Species Only Variance  This is the sample variance of all the values in each row of the data matrix. Dispersion (I)  The dispersion statistic ie the variance over the mean. Chi of I  The chi value of the dispersion statistic. Dispersion Model  Whether the dispersion is random, aggregated or uniform.
