This section offers a brief overview of how DADiSP can be used as a visual, statistical analysis tool on both single series and matrices of data.
The following is a partial list of standard statistical and math functions that can be applied to a single variable data series. You can access most of these functions through the Math and Statistics option on the Analysis pulldown menu.
Function 
Description 
Calculates amplitude distribution. 

Calculates the area under a curve. 

Takes the derivative of a series. 

Sorts a series in ascending or descending order and yields an output series containing the indices (i.e., observation numbers) of the sorted input series. 

Integrates a series. 

Displays the length of a series. 

Determines linear regression. 

Calculates linear regression of two. 

Picks selected points by index. 

Calculates the mean. 

Calculates the median. 

Calculates the partial sum. 

Rearranges a series based upon specified indices. 

Rearranges the y values of a series in ascending or descending numerical order. 

Displays MEAN and STDEV. 

Provides the standard deviation. 
REORDER is similar to SORT, however, it works much faster on larger series. For example,
reorder(w1, grade(w1))
produces the same result as SORT(W1). Now try this:
reorder(sort(w1),grade(grade(w1),1))