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Re: st: Loop: matching variables (in order)


From   Nick Bornschein <[email protected]>
To   [email protected]
Subject   Re: st: Loop: matching variables (in order)
Date   Wed, 20 Nov 2013 16:31:16 +0100

Well, no.

Ich want to produce one graph with 2 lines: tsline `x' || tsline `y' (syntax simplified) where x is for example apple and y is apple_m30. So have the variables (these and more thats why I need a loop)

x: apple nokia biorad
y: apple_m30 nokia_m30 biorad_m30

And the graph needs to be (simplified): tsline apple || tsline apple_m30
then: tsline nokia || tsline nokia_m30

and so on.

And sorry for the double post, got an error message when I wrote first.

-Nick



Am 20.11.13 16:18, schrieb Nick Cox:
The key here, if I understand you correctly,  is that you need one
loop, not two.  You are halfway there with your graph names. Also,
-tsline- can take a varlist

foreach x of varlist apple-biorad {
       tsline `x' `x'_m30 if datum >= `=date("01jan2010", "DMY")'
       graph export Grafiken/`x'_m30.png, replace
}

Nick
[email protected]


On 20 November 2013 15:12, Nick Bornschein <[email protected]> wrote:

I have written the following loop, but there is a mistake when
creating the graphs I cannot solve.
First of all, I have an ordered list of x variables and an ordered
list of y variables. I want to create an graph (tsline) with 2 lines,
where I want use the first variable of the x variables and the first
variable of the y variables, then I want to create the next graph with
2 lines with the second variable of the x variables and the second
variable of the y variables. How can I write that into the loop?


foreach x of varlist apple-biorad {
     foreach y of varlist apple_m30-biorad_m30 {
       tsline `x' if datum >= `=date("01jan2010", "DMY")' || tsline `y'
if datum >= `=date("01jan2010", "DMY")'
       graph export Grafiken/`x'_m30.png, replace
     }
}
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