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Newsgroups: comp.graphics.apps.gnuplot
Date: Thu, 5 Jul 2018 07:26:47 -0700 (PDT)
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Subject: Re: how to plot a trendline
From: mangeshdamre007@gmail.com
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Xref: csiph.com comp.graphics.apps.gnuplot:3993

On Saturday, October 31, 2009 at 9:49:55 PM UTC+1, robin schillewaert wrote:
> Hi,
> 
> How can I plot a trendline in gnuplot?
> 
> Thanx
> 
> Robin
> 
> my data file is as follows (de first column is a timeline, de second 
> column are data)
> 
> 1    051.53
> 2    081.78
> 3    065.08
> 4    071.25
> 5    070.32
> 6    068.46
> 7    071.50
> 8    074.83
> 9    102.15
> 10    100.00
> 11    111.04
> 12    091.48
> 13    081.53
> 14    084.06
> 15    097.36
> 16    092.46
> 17    093.41
> 18    104.75
> 19    096.13
> 20    088.30
> 21    088.30
> 22    087.09
> 23    092.36
> 24    098.45
> 25    138.13
> 26    070.32
> 27    083.84
> 28    078.77

Even it is now more simple.
Describe in more details in the link below
https://insilicoengine.blogspot.com/2017/07/gnuplot-how-to-draw-trend-line.html