Groups > comp.graphics.apps.gnuplot > #4166

Re: Taking the modulo of column data

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Date	Mon, 11 Mar 2019 09:57:26 -0700 (PDT)
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Subject	Re: Taking the modulo of column data
From	galaxy3xyz@gmail.com
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Xref	csiph.com comp.graphics.apps.gnuplot:4166

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On Monday, March 11, 2019 at 12:56:21 PM UTC-4, galax...@gmail.com wrote:
> On Tuesday, November 12, 2002 at 12:55:38 PM UTC-5, Gert wrote:
> > > I don't think so.  You did overlook the actual gnuplot documentation,
> > > though.  To be more precise: "help expression", which says:
> > >
> > >  Note that gnuplot uses both "real" and "integer" arithmetic, like FORTRAN and
> > >  C.  Integers are entered as "1", "-10", etc; reals as "1.0", "-10.0", "1e1",
> > >  3.5e-1, etc.  The most important difference between the two forms is in
> > >  division: division of integers truncates: 5/2 = 2; division of reals does
> > >  not: 5.0/2.0 = 2.5.  In mixed expressions, integers are "promoted" to reals
> > >  before evaluation: 5/2e0 = 2.5.  The result of division of a negative integer
> > >  by a positive one may vary among compilers.  Try a test like "print -5/2" to
> > >  determine if your system chooses -2 or -3 as the answer.
> > >
> > > This explains why the problem occurs in the first place.
> > 
> > Well, actually, I did read this part of the documentation. So I understood
> > the nature of the problem. But the documentation didn't mention anything
> > about the possibility to perform casting.
> > 
> > Thanks anyway for pointing me out.
> > 
> > Greetings,
> > 
> > Gert
> 
> This does not work in you use:
> 
> set datafile separator ","
> 
> for comma separated data (CSV)
> 
> This must be a bug right?

"if" you use:

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Re: Taking the modulo of column data galaxy3xyz@gmail.com - 2019-03-11 09:56 -0700
  Re: Taking the modulo of column data galaxy3xyz@gmail.com - 2019-03-11 09:57 -0700

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