blockmean L2 (x,y,z) data filter/decimator
blockmedian L1 (x,y,z) data filter/decimator
blockmode Mode (x,y,z) data filter/decimator
filter1d Filter 1-D data sets (time series)
fitcircle Finds the best-fitting great circle for a set of points
gmtconvert Convert between ASCII and binary 1-D tables
gmtdefaults List the current default settings
gmtmath Mathematical operations on data tables
gmtset Set individual default parameters
gmtselect Extract data subsets based on spatial criteria
grdfilter Filter 2-D data sets in the space domain
grd2cpt Make a color palette table from a grdfile
grd2xyz Conversion from 2-D gridded file to table data
grdclip Limit the z-range in gridded data sets
grdcontour Contouring of 2-D gridded data sets
grdcut Cut a sub-region from a grd file
grdedit Modify header information in a 2-D gridded file
grdfft Perform operations on grdfiles in the frequency domain
grdgradient Compute directional gradient from grdfiles
grdhisteq Histogram equalization for grdfiles
grdimage Produce images from 2-D gridded data sets
grdinfo Get information about grd files
grdlandmask Create mask grdfile from shoreline data base
grdmask Reset nodes outside a clip path to a constant
grdmath Mathematical operations on grdfiles
grdpaste Paste together grdfiles along a common edge
grdproject Project gridded data sets onto a new coordinate system
grdreformat Converting between different grdfile formats
grdsample Resample a 2-D gridded data set onto a new grid
grdtrend Fits polynomial trends to grdfiles
grdtrack Sampling of 2-D data set along 1-D track
grdvector Plot vector fields from grdfiles
grdview 3-D perspective imaging of 2-D gridded data sets
grdvolume Volume calculations from 2-D gridded data sets
makecpt Make GMT color palette tables
mapproject Transformation of coordinate systems for table data
minmax Find extreme values in data tables
nearneighbor Nearest-neighbor gridding scheme
project Project data onto lines/great circles
psbasemap Create a basemap plot
psclip Use polygon files to define clipping paths
pscoast Plot coastlines and filled continents on maps
pscontour Contour xyz-data by triangulation
pshistogram Plot a histogram
psimage Plot images (Sun rasterfiles) on maps
psmask Create overlay to mask out regions on maps
psrose Plot sector or rose diagrams
psscale Plot grayscale or colorscale on maps
pstext Plot textstrings on maps
pswiggle Draw time-series along track on maps
psxy Plot symbols, polygons, and lines on maps
psxyz Plot symbols, polygons, and lines in 3-D
sample1d Resampling of 1-D table data sets
spectrum1d Compute various spectral estimates from time-series
splitxyz Split xyz-files into several segments
surface A continuous curvature gridding algorithm
trend1d Fits polynomial or Fourier trends to y = f(x) series
trend2d Fits polynomial trends to z = f(x,y) series
triangulate Perform optimal Delaunay triangulation and gridding
xyz2grd Convert an equidistant xyz file to a 2-D grd file