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st: RE: AW: How to make ID as 01 instead of 1

From   "Nick Cox" <>
To   <>
Subject   st: RE: AW: How to make ID as 01 instead of 1
Date   Mon, 14 Dec 2009 13:23:40 -0000

Similarly, the function -string()- takes a numeric format as argument,
which could be a leading zero format. 


Martin Weiss

You cannot -replace- the numeric variable because -replace- cannot
the data type to -string-. Just create a new variable, then:

gen newx="0"+string(x)

You could also -format- the numeric variable -format x %02.0f- to
achieve a
similar effect, without changing the actual contents of the variable...

Quang Nguyen

Can you show me how I can generate ID in the following manner: 01,
02..... instead of 1, 2, 3...?

>From the original data, I have ID in the form of 1, 2, ...... I then
use the following commands:

tostring ID, replace
replace x = "01" if x=="1"

There was a message "type mismatch".

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