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Newsgroups: comp.graphics.apps.gnuplot
Date: Tue, 27 Nov 2018 08:32:23 -0800 (PST)
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Subject: Re: Histogram using Gnuplot
From: Savin Beniwal <darshanbeniwal11@gmail.com>
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Xref: csiph.com comp.graphics.apps.gnuplot:4114

On Tuesday, November 27, 2018 at 6:14:58 PM UTC+5:30, Karl Ratzsch wrote:
> Am 27.11.2018 um 13:26 schrieb Savin Beniwal:
> > On Tuesday, November 27, 2018 at 4:34:11 PM UTC+5:30, Karl Ratzsch wrote:
> >>
> >> check "help smooth": You want "fnormal" instead of "frequency"
> >>
> > For density histogram, I used smooth density. i.e.
> > gnuplot> plot"hist1.txt" u (bin($1,width)):(0.1) smooth kden  w boxes t"".
> > Gives me desired shape of the density histogram. 
> 
> I'm not sure if this gives the correct result. You want binned results,
> not density estimates, right?
> 
> > 
> >>> 2 How to set/change the width of the histogram.
> >>
> >> Do you mean
> >>
> >>   set xrange [start:end]
> > But Sir each histogram has its box shape I didn't understand how to set bin_width of the histogram using:
> > gnuplot> width=0.7
> > gnuplot> bin(x,width)=width*floor(x/width)
> 
> you mean the width of the actual boxes in the plot?
> 
> Check "help style boxes": You need to give a third parameter to your
> plot to specify it.
> 
>    plot dataf using (bin($1)):(1):(plot_width/numberofbins) smooth freq
> 
> >> ? Also check the link to smooth.dem in "help fnormal"
> >>
> >>   Karl
> > I found no result regarding fnormal.
> > 
> 
> Oh. What is your gnuplot version? The "fnormal" smoothing routine first
> came with gp5.2 last year.

Actually, I want to get this plot:- https://i.ibb.co/NrzdzcN/i-need-this.png
I think this plot is w.r.to density(y-axis) 
But using density I'm getting this plot https://i.ibb.co/TRR2LYN/Plot-kden.png
I want to replot this plot with a different width of each histo bars.  My basic problem is I still don't know how to set each histo bar width.  What does mean by kdensity. Please share me to solve this mystery (For me).
I think you got it my problem.