How to plot two lines with data in GNUplot

Question

I have a data file to be fitted to a scatterplot in .txt format with simple x,y data.

I also have two lines that I want to overlay on the data:

Line 1: y= -0.2232589739194248 * x + 4.381190125671611

Line 2: y= 5.517500395590605 + -0.8442345203102343 * x + 0.07974732479342203 * x*x

I can plot each of these separately using the plot function, but how do I get them to all appear together?

Christoph · Accepted Answer · 2013-11-18 18:50:00Z

1

Just use

set style func lines
plot 'file.txt' with points,\
     -0.2232589739194248 * x + 4.381190125671611,\
     5.517500395590605 + -0.8442345203102343 * x + 0.07974732479342203 * x*x

edited Nov 18, 2013 at 18:50

answered Nov 18, 2013 at 18:16

Christoph

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2 Comments

Christoph Over a year ago

@user3005506 Then you can consider accepting and possibly upvoting the answer :)

mp4-12c Over a year ago

Sorry, took me a while. Thanks again :)

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