gnuplotplot
I have two files A and B. Both files contain 2 columns, x and y.
Now, I want to plot a graph for x vs (yA – yB). Does gnuplot provide a command for the same ?
One more thing, lets say xA and xB are not same. How should I plot a graph where x-axis contains all elements which are in both, xA and xB and y-axis is the difference is the corresponding y-components ?
There is a clear figure command, and it should do it for you:
plt.clf()
If you have multiple subplots in the same figure
plt.cla()
clears the current axes.
You can have the axes handled automatically without you having to scale them yourself and keep auto-scaling:
set terminal jpeg
set output 'graph.jpg'
set xrange [-10:10]
set ytics 10 nomirror tc lt 1
set ylabel '2*x' tc lt 1
set y2tics 20 nomirror tc lt 2
set y2label '4*x' tc lt 2
plot 2*x linetype 1, 4*x linetype 2 axes x1y2
Best Answer
First, preprocess the files with
joinin bash:Sorting the files is essential, otherwise
joinwould not work.Then you can use the result to draw the graph:
Again, numeric sorting is needed here, because
joinuses alphanumeric sorting which makes the lines cross each other.