thanks martin, i missed that, now i got it working :)
mike
--- On Sat, 7/4/09, Martin Weiss <[email protected]> wrote:
> From: Martin Weiss <[email protected]>
> Subject: st: RE: help with mata's st_sview
> To: [email protected]
> Date: Saturday, July 4, 2009, 3:11 PM
>
> <>
>
> As -help mf_st_view, mark(remarks5)- says: "Assignment does
> not cause
> promotion." Note that you execute Stata commands, such as
> the -recast-
> command, from within -mata- as in - help mata stata-
>
>
>
>
> HTH
> Martin
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]
> On Behalf Of Mike Wazowski
> Sent: Samstag, 4. Juli 2009 05:43
> To: [email protected]
> Subject: st: help with mata's st_sview
>
> dear statalisters,
>
> i am puzzled by the following behavior:
>
> i use st_sview to access a stata variable and change it
> internally within
> mata. however, i am not able to "stretch" a string
> variable above its
> storage type, for example, "make" in auto.dta is stored as
> str18 but if i
> want to change it within mata to something longer than 18
> chars, the new
> string gets truncated to 18 chars. the following code
> illustrates this
> behavior:
>
> sysuse auto, clear
> keep in 1/5
> list make
> d make
> mata:
> st_sview(x,.,"make")
> x[.,.]=x*2
> x
> end
> list make
> replace make = "01234567890123456789" in 1
> list make
>
> as you can see, when i issue -replace- in stata, "make" is
> automatically
> promoted to str20.
>
> how can i promote a sting var from within mata to a longer
> string?
>
> thanks,
>
> mike
>
> ps. the same behavior happens with st_sstore:
>
> sysuse auto, clear
> keep in 1/5
> list make
> d make
> mata:
> st_sstore(2,"make","01234567890123456789")
> end
> list make
>
>
>
>
>
>
>
>
>
>
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>
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