How do you change a variable name in SAS?
You rename a SAS variable with the RENAME option. The RENAME option is a data set option which enables you to change the name of a variable. First of all, you define the old variable name, then an equal sign, and finally the new variable name. You can rename one or more variables with one RENAME option.
How do I RENAME a variable in a SAS dataset?
There may be occasions in which you want to change some of the variable names in your SAS data set. To do so, you’ll want to use the RENAME= option. As its name suggests, the RENAME= option allows you to change the variable names within a SAS data set. RENAME = (old1=new1 old2=new2 ….
How do you RENAME a label in SAS?
Changing a variable label in SAS is exactly the same as assigning a label. SAS doesn’t require you to specify the old label before you can define the new label. So, you can directly use the LABEL statement to modify the current label.
How do you name a variable in SAS?
When naming a variable in SAS, there are a few rules you must follow:
- The name cannot contain more than 32 characters.
- The name can start with a letter or an underscore (_), but cannot start with a number. Numbers can be used after the first character.
- Blanks are not recognized in names.
How do you rename data in SAS?
RENAME cannot be used in PROC steps, but the RENAME= data set option can. The RENAME= data set option enables you to specify the variables that you want to rename for each input or output data set. Use it in input data sets to rename variables before processing.
How do you rename an array variable in SAS?
You can’t use an array to rename variables. If the variable names all have a pattern (such as x1-x27) and the renamed variables have a pattern (such as paige1-paige27) — which by the way are highly recommended variable names 😉 — then you can resort to some PROC SQL trickery.
How do I remove a variable from a format in SAS?
To remove a format from specific variable(s): ADD format varname ; to the data step (where varname is the name of the specific variable you want to display without the format labels). Example: Use a data step to create a new data set, and remove format from genhealth in the new data set.
How do you change column attributes in SAS?
Modifying a Column You can use the MODIFY clause to change the width, informat, format, and label of a column. To change a column’s name, use the RENAME= data set option. You cannot change a column’s data type by using the MODIFY clause.
How long are SAS variable names?
32 bytes
Variable name follows these rules: The name can be up to 32 bytes in length. The name can contain letters of the Latin alphabet, numerals, or underscores. The name cannot contain blanks or special characters except for the underscore.
How to create variable in SAS?
I. Creating a numeric variable
How do you rename file in SAS?
To rename variables as a file management task, use the DATASETS procedure or access the variables through the SAS windowing interface. These methods are simpler and do not require DATA step processing.
Can I change variables name?
Step by step Open the Start Search, type in “env”, and choose “Edit the system environment variables”: Click the “Environment Variables…” button. Set the environment variables as needed. The New button adds an additional variable The Edit button modifies the selected variable The Delete button deletes the selected variable Dismiss all of the dialogs by choosing “OK”. Your changes are saved!
What is drop in SAS?
The DROP statement applies to all the SAS data sets that are created within the same DATA step and can appear anywhere in the step. The variables in the DROP statement are available for processing in the DATA step. If no DROP or KEEP statement appears, all data sets that are created in the DATA step contain all variables.