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Re: st: Combining graphs addendum


From   Jorge Eduardo Pérez Pérez <jorge_perez@brown.edu>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: Combining graphs addendum
Date   Mon, 10 Feb 2014 22:25:57 -0500

You are confusing variables with local macros. Replace the first line

gen i=1

by

local i=1

and the last line in the loop

replace i=i+1

by

local i = `i' +1


--------------------------------------------
Jorge Eduardo Pérez Pérez
Graduate Student
Department of Economics
Brown University


On Mon, Feb 10, 2014 at 10:06 PM, Paul <paul@iheta.com> wrote:
> Sorry, I omitted the graph combine code
>
> I have a very large file of 2.3 million hospital admissions, and am using
> stata v 13.1 on a MacBook Pro
>
> I want to create three bar charts of the hospital cost of complications for
> hip replacement, using three different icd codes for the hip procedures. I
> want to then  combine the three in one graph.
>
> This seemed straightforward with the following loop:
>
>
> gen i=1
> foreach v of varlist HIP1824Px HIP1836Px HIP1819Px {
>  graph bar total_episd_amt if LOS>0 & hospital_group=="" &
> separation_fy=="2010/11", over (COMPTOT, relabel(2 "Complication" 1
> "NoComplication")) over(`v', relabel(2 "`v'"  1 "  Other admissions")) title
> ("Mean episode amount overnight stays, public hospitals 2010/11") subtitle
> ("`v' with/without complications") name(HIP`i')
>  replace i=i+1
>  }
> graph combine HIP1 HIP2 HIP3,cols(1)
>
> The error message is : HIP1 is not a memory graph
>
> I have tried various combinations of the saving and name conventions,
> including double quotation marks around the `i' in the name, but none work.
>
> Any  ideas, please?
>

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