![]() ![]() This terminal is provided to allow for the debugging of gnuplot. It exists a debug terminal of gnuplot that if enabled in your version can help in the debug procedure. print "here I am #n", execute it and read the last Here I Am #). Then you can start to divide your script until you find the error (or you can write in some points lines as print "here I am #1". I can add that you can call gnuplot with dash as the last parameter to stay in the interactive regime when the script completes. Make the file itself executable, by shebang (#!) notation (depends on exact path): the gnuplot x11 terminal uses a separate program called gnuplotx11 for displaying the results. Alternatively, run gnuplot with the -persist command line switch, so gnuplot exits, but the window persists.Put pause -1 (pause until carriage return) at the end of the file, then run it from the command line.Start gnuplot interactively, then load the file in question.Change the terminal to interactive (instead of outputting to a file), by commenting out set terminal and output lines.Depending on the terminal type, some mousing operations may. You can also specify persist or nopersist when you set a new terminal. If it returns a number different from 0 it means it crashed.įrom this wikibook you can read some tips:įor debugging a gnuplot file, it is often useful to: gnuplot -persist -e plot -5:5 sinh(x) gnuplot will open a display window, draw the plot into it, and then exit, leaving the display window containing the plot on the screen. The -persist parameter can fix your problem. If it returns 0 it means the execution finished without error. ![]() To do it just run your command and after ask to the shell the exit code with echo $? gnuplot -e "plot 'data.dat'" I tried few Gnuplot versions (4.6.6, 5.0.0, 5.0.3) but they all present the same behaviour.Before of all you need to be sure that gnuplot is crashing. These don't: cat test.dat | gnuplot -persist -e "plot for '-' i IDX u 1:2 w lines title columnheader(1)"Ĭat test.dat | gnuplot -persist -e "plot for '< cat' i IDX u 1:2 w lines title columnheader(1)" Gnuplot -persist -e "plot for '< cat test.dat' i IDX u 1:2 w lines title columnheader(1)" So these works: gnuplot -persist -e "plot for 'test.dat' i IDX u 1:2 w lines title columnheader(1)" Using this method we have the option to just call gnuplot t to draw the plot once, or use the above command to keep refreshing without having to change any of the files. When Gnuplot is run manually the charting instructions and data values can be inserted directly. This should be trivial, am I making a silly mistake? gnuplot -persist -e 't' t Which sets the variable config to your own configuration file. Gnuplot is typically run as a command line utility, but it can also be run manually. I tried to add an e at the end of the data file, but no luck. This method has two important consequences. However, after a reset, those plot windows left due to persist cannot be closed with. I get the warning message and only the first set is plotted. New maxima plotting routine on Unix platform calls gnuplot with -persist flag. gnuplot provides the x11 terminal type for use with X servers. Line 10: warning: Skipping data file with no valid points Here is the single line example: $ cat test.dat | gnuplot -persist -e "plot for '-' i IDX u 1:2 w lines title columnheader(1)" As a follow up of: Gnuplot: Plotting several datasets with titles from one file, I have a test.dat file: "p = 0.1"Īnd I can plot it with no issues from within gnuplot using: > plot for 'test.dat' i IDX u 1:2 w lines title columnheader(1) ![]()
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