Re: [Gnuplot-info] Write text value for a specific x

[Thomas S. <t.s...@fz...>]

xx=2
plot "a.txt" u 1:2 w lp, "" u 1:3 w lp, "" u 1:($1==xx?$2:0/0):2 w labels

or

plot "b.txt" u 1:2 w lp, "" u 1:3 w lp, "" u
1:(strlen("".stringcolumn(4))>0?$2:0/0):2 w labels


LukasP wrote:
> 
> Hello,
> 
> let's have a datafile "a.txt":
> 
> 1 10 100
> 2 15 150
> 3 30 300
> 
> Let's have a predefined value, say "X=2".
> 
> Let's plot the datafile by:
> 
> plot "a.txt" u 1:2 w lp, "" u 1:3 w lp
> 
> Is it possible (and if so, how?) to make gnuplot plot the y-value of the
> 2nd column as text for (only) this preset X?
> 
> Let's have another datafile, "b.txt":
> 
> 1 10 100
> 2 15 150 *
> 3 30 300
> 
> Is it possible (and if so, how?) to make gnuplot plot the y-value as text
> (only) when the line of the datafile contains "*" at the last position (or
> wherever on the line)?
> 
> Thank you in advance.
> 
> LukasP
> 
> 

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