Example datafile

This example plots the data in the file "population.dat" and a theoretical curve:

     pop(x) = 103*exp((1965-x)/10)
     set xrange [1960:1990]
     plot 'population.dat', pop(x)

The file "population.dat" might contain:

     # Gnu population in Antarctica since 1965
        1965   103
        1970   55
        1975   34
        1980   24
        1985   10

Binary examples:

     # Selects two float values (second one implicit) with a float value
     # discarded between them for an indefinite length of 1D data.
     plot '<file_name>' binary format="%float%*float" using 1:2 with lines

     # The data file header contains all details necessary for creating
     # coordinates from an EDF file.
     plot '<file_name>' binary filetype=edf with image
     plot '<file_name>.edf' binary filetype=auto with image

     # Selects three unsigned characters for components of a raw RGB image
     # and flips the y-dimension so that typical image orientation (start
     # at top left corner) translates to the Cartesian plane.  Pixel
     # spacing is given and there are two images in the file.  One of them
     # is translated via origin.
     plot '<file_name>' binary array=(512,1024):(1024,512) format='%uchar' \
          dx=2:1 dy=1:2 origin=(0,0):(1024,1024) flipy u 1:2:3 w rgbimage

     # Four separate records in which the coordinates are part of the
     # data file.  The file was created with a endianess different from
     # the system on which gnuplot is running.
     splot '<file_name>' binary record=30:30:29:26 endian=swap u 1:2:3

     # Same input file, but this time we skip the 1st and 3rd records
     splot '<file_name>' binary record=30:26 skip=360:348 endian=swap u 1:2:3