Re: Adding normalise to gnuplot

[<pl...@pi...>]

On 04/24/14 16:53, Jon Gjengset wrote:
> Hi all,
>
> One feature I've been missing from gnuplot is the ability to normalise a
> dataset; that is, scale all values so that they are in [0:1] by dividing
> by the maximum value. The attached patch does so by introducing "smooth
> normal".


The usual thing to do to "normalise" data would be subtract the mean and 
divide by std dev.

I think the design philosophy here has been that most data processing is 
well catered for elsewhere and GP is not trying to be kitchensink, one 
stop , DP and plotting tool.

However, if you want to do this sort of thing it does not require a 
patch to gnuplot, just use a function.

max(x) =(if (x>biggest)?biggest=max:(x))

biggest=-1e-134; plot datafile 1:max($2)

plot datafile 1:($2/biggest)


/Peter