Replace command

[Azibambo Mw]

Hello am new to stata, the task that am trying to achieve is to replace a numeric value with a string, but it keeps on saying type mismatch. However the type of the variable is str8.
I want to replace AB which is 1 with a string value. Am using "replace AB="my string" if "var"="value"

[William Lisowski]

Welcome to Statalist.

It seems to me what you want is

replace AB = "my string" if XY==1

making the assumption that XY is a variable containing numeric values that you want to use to determine the replacement value for the string variable AB.

If that advice doesn't solve your problem, please review the Statalist FAQ linked to from the top of the page, as well as from the Advice on Posting link on the page you used to create your post. Note especially sections 9-12 on how to best pose your question. You have left too much to the imagination of the reader in describing your problem.

[Nick Cox]

Guessing too, as it is hard to believe that you typed what you said, but possibly

 
 replace AB = "my string" if AB == "1"

[Joro Kolev]

To my knowledge Stata does not allow replacing string variable with numeric values and numeric variable with string values.

. set obs 1
number of observations (_N) was 0, now 1

. gen str = "String"

. replace str = 1 if str=="String"
type mismatch
r(109);

. replace str = 1
type mismatch
r(109);

. clear

. set obs 1
number of observations (_N) was 0, now 1

. gen numb = 1

. replace numb="String" if numb==1
type mismatch
r(109);

. replace numb="String"
type mismatch
r(109);

[Mike Jonas]

The "encode/decode" commands should do the trick. Type "help encode" in Stata for documentation and examples.