Setting the format for three-dimensional data plots University of Hawaii at Manoa College of Engineering The data file section describes the columns that a gnuplot data file can use. Depending on the number of columns, the plotted values can vary. One column: The value is used for the Z value. (The X values start from 0, and are incremented by 1, Y values also start from 0, and are incremented by 1 by each set of data separated by a blank line.) Three columns: The three values are used for the X, Y and Z values, respectively. In addition to these pre-defined formats within the file, you can also specify which columns would be used within the data file with the using option of the plot command. The argument following this is a list of colon-separated columns, and up to 4 columns may be specified for the purposes outlined above. For example, the command splot "datafile" using 2:4:6 would use column 5 for the X value, column 3 for the Y value, and column 8 for the Z value.

Author: Ben Yoshino (ben@wiliki.eng.hawaii.edu) Comments, Questions? | E-mail: webmaster@wiliki.eng.hawaii.edu Last updated on Thursday, August %.1d, 2002 Copyright © 2001 University of Hawai`i, College of Engineering, Computer Facility All rights reserved.