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Re: st: Macro from scalar


From   Nick Winter <[email protected]>
To   [email protected]
Subject   Re: st: Macro from scalar
Date   Fri, 22 Aug 2008 15:07:13 -0400

Note the difference between:

scalar s = 1
local l s

and

scalar s = 1
local l = s

in the first case, the string "s" is put in local l. When you display `l', Stata replaces `l' with the string "s", which is then evaluated as a scalar.

In the second case, the local l is given the (current) value of the scalar s.

Which you want depends on whether you want the value you get when you refer to the local to change when the scalar changes. Consider:

. scalar s = 1

. local m1 s

. local m2 = s

. scalar s = 2

. di `m1'
2

. di `m2'
1


--Nick Winter



Eva Poen wrote:

Douglas,

like this?

scalar s = 1
local l s

di s
di `l'

To avoid confusion with variable names, you can write

local l scalar(s)

Hope this helps,
Eva


2008/8/22 Levy, Douglas E., Ph.D. <[email protected]>:
Hi all,
Is there a way to take a scalar and place its value in a macro?
Thanks,
Doug

Douglas Levy, PhD
Institute for Health Policy
Massachusetts General Hospital
50 Staniford Street; Suite 901
Boston, MA 02114
Tel 617.643.3595
Fax 617.724.4738

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Assistant Professor                             434.924.3359 f
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