This is the command pkstatogr that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
pkstatogr - program to calculate basic statistics from vector file
SYNOPSIS
pkstatogr -i input [options]
DESCRIPTION
pkstatogr calculates basic statistics on attributes of a vector file. Examples of the
basic statistics include: minimum, maximum, median, mean and standard deviation.
Histograms (in percentage or absolute values) can also be calculated. The attribute of
interest can be selected using the option -n|--fname. Values defined by the -nodata
option, or not within the limits set by the options -src_min and -src_max are ignored for
the statistics.
OPTIONS
-i filename, --input filename
Input image file(s). If input contains multiple images, a multi-band output is
created
-ln layer, --lname layer
Layer name(s) in sample (leave empty to select all)
-n attribute, --fname attribute
Fields on which to calculate statistics
-nodata value, --nodata value
Set nodata value(s)
-src_min value, --src_min value
Set minimum value for histogram
-src_max value, --src_max value
Set maximum value for histogram
-s, --size
Sample size (number of points)
-mm, --minmax
Calculate minimum and maximum value
-min, --min
Calculate minimum value
-max, --max
Calculate maximum value
-mean, --mean
Calculate mean
-median, --median
Calculate median
-stdev, --stdev
Calculate standard deviation
-hist, --hist
Calculate histogram
-nbin value, --nbin value
Number of bins to calculate histogram
-rel, --relative
Use percentiles for histogram to calculate histogram
-kde, --kde
Use Kernel ⟨http://pktools.nongnu.org/html/classKernel.html⟩ density estimation
when producing histogram. The standard deviation is estimated based on Silverman's
rule of thumb
-v level, --verbose level
Verbose level
EXAMPLE
report histogram of values in FIELDID (to standard output)
pkstatogr -i input.shp -f FIELDID -n 100
report min, max, mean and standard deviation of values in FIELDID (to standard output)
pkstatogr -i input.shp -f FIELDID -min -max -mean -stdev
24 January 2016 pkstatogr(1)
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