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Melk
Lapis Lazuli | Level 10

I have a character variable that consists of both letter and numbers(i.e. ABC123).

 

I want to convert all observations that have lower case in that variable (i.e. abc124) to upper case (ABC124). Not all observations have lower case. What is the best way to do this? newvar =upcase(oldvar) gives me missing values, I am assuming because I have numbers in my string too.

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WarrenKuhfeld
Rhodochrosite | Level 12

Use the upcase function.  It does not matter that values might or might not contain uppercase, lowercase, or numerals.  I don't know what you are doing to get missing values.  You have probably previously defined newvar as numeric.

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WarrenKuhfeld
Rhodochrosite | Level 12

Use the upcase function.  It does not matter that values might or might not contain uppercase, lowercase, or numerals.  I don't know what you are doing to get missing values.  You have probably previously defined newvar as numeric.

Reeza
Super User

@Melk wrote:

newvar =upcase(oldvar) gives me missing values, I am assuming because I have numbers in my string too.


No, there's some other reason most likely. If you have mixed types in the cell, that's only possible with a character variable. If your variable is numeric, then UPCASE will definitely not work.

Melk
Lapis Lazuli | Level 10

Thanks - I just preceded that line with newvar = " " and that seemed to work for some reason.

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