Get information about data tables.
Reads from files and finds the extreme values in each of the columns. It recognizes NaNs and will print warnings if the number of columns vary from record to record. As an option, it will find the extent of the first n columns rounded up and down to the nearest multiple of the supplied increments. By default, this output will be in the form -Rw/e/s/n, or the output will be in column form for as many columns as there are increments provided. The T option will provide a -Tzmin/zmax/dz string for makecpt.
Full option list at https://www.generic-mapping-tools.org/gmt/latest/gmtinfo.html
The file name of the input data table file.
Report the min/max values per column in separate columns.
'[b|p|f|s]dx[/dy[/dz...]]'. Report the min/max of the first n columns to the nearest multiple of the provided increments and output results in the form -Rw/e/s/n (unless C is set).
'dz[+ccol]'Report the min/max of the first (0’th) column to the nearest multiple of dz and output this as the string -Tzmin/zmax/dz.