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# st: RE: Overlaying an unknown number of line graphs

 From Nick Cox To "'statalist@hsphsun2.harvard.edu'" Subject st: RE: Overlaying an unknown number of line graphs Date Wed, 9 Nov 2011 10:58:11 +0000

```It's a loop:

local n = whatever

forval i = 1/`n' {
local call `call' (line freq`i' sample`i', sort)
}

twoway `call'

You might to suppress the -legend()-.

Nick
n.j.cox@durham.ac.uk

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Colin Robert Angus
Sent: 09 November 2011 10:48
To: statalist@hsphsun2.harvard.edu
Subject: st: Overlaying an unknown number of line graphs

Dear list,

I am writing a do file to take n random samplings from a distribution,
for a user-inputted value of n.
This file creates variables labelled sample`i' and freq`i' for each
value of i between 1 and n.
I would like to draw a single line graph with all of the plots of
sample`i' against freq`i' overlaid on it.
So something like:
twoway (line freq1 sample1, sort) (line freq2 sample2, sort)...(line
freqn samplen, sort)
But I can't see how to write this without knowing the value of n
beforehand, and then, if n is large, writing an incredibly long command.
Is there a way to do this within Stata?

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```

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