Questions tagged [gnuplot]

A command line plotting program with a surprising amount of depth. Unrelated to the free software foundation's GNU project.

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5 votes
6 answers

How can I plot piece-wise defined function in some easily-accessed open-source tool?

I want to plot $$f_{n}(x) = \begin{cases} x-n & \text{for } n \leq x \leq n+1 \\ 2-x+n & \text{for } n+1\leq x \leq n+2 \\ 0 &...
0 votes
1 answer

Dealing with arrays and fit function in Gnuplot

I want to evaluate the Birch-Murnaghan Equation of State (BM-EOS) for different volumes. I tried declaring a 1D array A in which every element would be the answer ...
1 vote
1 answer

Gnuplot: How can I determine the maxima of a fit function in gnuplot?

I have a set of data data.txt which can be fit to a Gaussian function, f(x). I want to determine the coordinates of the point of ...
2 votes
1 answer

Gnuplot: How can I fit a range of points (out of the entire data) to a function?

I have a set of data obtained for the I-V characteristics of an LED. ...
2 votes
2 answers

What equation should I fit this set of data points to?

I have done an experiment Estimation of silver nitrate by potentiometric titration with standard KCl solution. A plot of $\dfrac{\Delta E}{\Delta V}$ versus Volume of KCl solution gives the ...
4 votes
2 answers

Can gnuplot's PNG terminal use superscripts and subscipts?

I know that gnuplot's epslatex terminal can display superscipts and subscripts in titles and label axes. Is this also possible when using gnuplot's ...
2 votes
1 answer

How can I set different axes for different plots in gnuplot?

I want to plot a few sets of data points on the same x-axis that have different units. How can I set different axes for each incompatible quantity?