gbstat1

Usage

Overview

Sample statistics. Compute mean, standard deviation, skewness, kurtosis, average deviation, minimum, maximum, median (if option -m is specified) and number of valid observations. Option -O allows one to select specific statistics. With option -t statistics are printed for each column of data separately. A header line is added with the meaning of the different columns. The mode is computed using the Half-Sample method.

Options

-m

add the sample median to the estimated statistics

-t

print statistics for each column of input

-s

short: mean std skew kurt adev min max (median) num

-O

select output: mean,std,var, skew,kurt,adev,min,max,median,num,mode

-o

set the output format (default '%12.6e')

-F

specify the input fields separators (default " \t")

-h this help

Examples

gbstat -O median,kurt < file

compute the median and the kurtosis of all the data in 'file'

gbstat -ts < file

compute statistics for each columns separately. Since option -s is provided, the header is omitted.