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Re: st: Unreasonable error "Obs. nos. out of range"
From
Sergiy Radyakin <[email protected]>
To
"[email protected]" <[email protected]>
Subject
Re: st: Unreasonable error "Obs. nos. out of range"
Date
Mon, 17 Jun 2013 12:38:35 -0400
On Mon, Jun 17, 2013 at 10:21 AM, Stefan Bernhard
<[email protected]> wrote:
> dear statalisters,
>
> i have a piece of looping code over different variables and all
> observations, and an excerpt of the trace shows this:
>
> = if cats[2] == 0 {
> local bak = 0
> }
> - noi di as text "bak is `bak'"
> = noi di as text "bak is 0"
> bak is 0
> - replace `var' = 1 in `i'
> = replace cats = 1 in 2
> Obs. nos. out of range
>
>
> This makes no sense at all to me.
>
> In the first line, it successfully uses the value of cats of
> observations number 2 to define the local bak as 0.
No it does not. That code is not executed.
bak is defined elsewhere.
First line is executed successfully because Stata allows you to read
from an observation out-of-range:
sysuse auto
count
display price[0]
display price[100]
Stata does not allow you write to an observation out-of-range.
>
> Few lines later, it acts as if there was no more observations number 2
> and cannot replace the number of cats with 1 in observation number 2.
>
> Why does it say Obs. nos. out of range ?
>
> regards, stefan bernhard,
> *
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