pkstatogr

program to calculate basic statistics from vector file

SYNOPSIS

Usage: pkstatogr -i input [-n attribute]*

Options: [-ln layer]* [-n attribute]* [srcnodata]* [src_min] [src_max] [-s] [-mm] [-min] [-max] [-mean] [-median] [-stdev] [-hist] [-nbin] [-rel] [-kde]

Description

The utility 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 withing the limits set by the options -src_min and -src_max are ignored for the statistics.

Options

• use either -short or --long options (both --long=value and --long value are supported)
• short option -h shows basic options only, long option --help shows all options

  short	long	type	default	description
  i	input	std::string		Input OGR vector file
  n	fname	std::string		Fields on which to calculate statistics
  ln	lname	std::string		Layer name(s) in sample (leave empty to select all)
  nodata	nodata	double		Set nodata value(s)
  src_min	src_min	double		Set minimum value for histogram
  src_max	src_max	double		Set maximum value for histogram
  s	size	bool	false	Sample size (number of points)
  mm	minmax	bool	false	Calculate minimum and maximum value
  min	min	bool	false	Calculate minimum value
  max	max	bool	false	Calculate maximum value
  mean	mean	bool	false	Calculate mean value
  median	median	bool	false	Calculate median value
  stdev	stdev	bool	false	Calculate standard deviation
  hist	hist	bool	false	Calculate histogram
  nbin	nbin	unsigned int		Number of bins
  rel	relative	bool	false	Use percentiles for histogram to calculate histogram
  kde	kde	bool	false	Use Kernel density estimation when producing histogram. The standard deviation is estimated based on Silverman's rule of thumb

  Usage: pkstatogr -i input [-n attribute]*

Examples

Some examples how to use pkstatogr can be found here