The “-” is used to specify that the data follows the plot command. So if you use it, you’ll need to do something like: echo “set datafile separator \”,\”; plot ‘-‘ using 1:2 with lines, ” using 1:3 with lines;” | cat – datafile.dat | gnuplot -p (Quoting above probably needs to be escaped). What’re … Read more
Updated: Now includes handling the data sample and uses mpl dates functionality. import matplotlib.pyplot as plt from matplotlib.dates import DateFormatter, MinuteLocator, SecondLocator import numpy as np from StringIO import StringIO import datetime as dt ### The example data a=StringIO(“””a 10:15:22 10:15:30 OK b 10:15:23 10:15:28 OK c 10:16:00 10:17:10 FAILED b 10:16:30 10:16:50 OK “””) … Read more
Instead of foo_abc, write foo\\\_abc.
This following works for me (gnuplot 4.4) plot “./file.dat” u 1:2:3 with lines palette Hope this helps. When I ran your code gnuplot couldn’t pass the “rgb” part. For an example of using the variable tag see the similar question: GNUPLOT: dot plot with data depending dot size with the useful examples found here: http://gnuplot.sourceforge.net/demo/pointsize.html … Read more
I found the answer here. Basically gnuplot needs to be reinstalled as: brew reinstall gnuplot –with-x11 This page also helps with troubleshooting Octave installation on Mavericks.
Small elaboration on bb2’s answer, if you do not want to change the font face: set xtics font “, 30” And for tics on the yaxis: set ytics font “, 30” For both axis at the same time: set tics font “, 30”
To adjust the length of the samples: set key samplen X (default is 4) To adjust the vertical spacing of the samples: set key spacing X (default is 1.25) and (for completeness), to adjust the fontsize: set key font “<face>,<size>” (default depends on the terminal) And of course, all these can be combined into one … Read more
Gnuplot can read column names from the first line, but you can still specify the column names normally as well. Therefore, this effectively skips the first line. Issue the command set key autotitle columnhead This tells gnuplot that the first line is not data, but is the column names to be used for the key. … Read more
If I get your question correctly, you could do something like this. >>> import matplotlib.pyplot as plt >>> testList =[(0, 6.0705199999997801e-08), (1, 2.1015700100300739e-08), (2, 7.6280656623374823e-09), (3, 5.7348209304555086e-09), (4, 3.6812203579604238e-09), (5, 4.1572516753310418e-09)] >>> from math import log >>> testList2 = [(elem1, log(elem2)) for elem1, elem2 in testList] >>> testList2 [(0, -16.617236475334405), (1, -17.67799605473062), (2, -18.691431541177973), (3, … Read more
The font for the key can be set in gnuplot 4.4. For example: set key font “,20” would set the size of the font to 20.