This SAS Variable is also known as string variables, contain information that the system recognizes as text. These variables in SAS are defined by placing a dollar sign ($) at the end. They can include letters, special characters (such as &,%,(),$), and even numbers.

When SAS encounters an uninitialized variable within a DATA Step, SAS will: outputs a message to a log stating the name of the uninitialized variable. set the uninitialized variable to missing, i.e. create a null numeric variable. continue to create the output dataset.

The “NOTE: Variable X is uninitialized” message is a result of trying to run a DATA Step which utilizes a variable that is not present in the input dataset or has not been created at the point within the DATA available in the SAS System. The first technique is to use the colon (:) operator modifier to truncate the lengths of the longer values. This eliminates the need for the SUBSTR function and/or creating additional variables. In the SAS System, character values must be adjusted to the same length before they can be compared. When SAS THIS VARIABLE IS UNINITIALIZED Sometimes when one is coding a specified data set structure, some of the variables will be uninitialized.

Sas variable is uninitialized

NOTE: Variable st_date is uninitialized. NOTE: Variable 'first.something'n is uninitialized. NOTE: Variable 'last.something'n is uninitialized. So no warnings, but if you are careful, you can avoid this mistake, because name “uninitialized” usually isn‘t what you want to see in your SAS log and you should check that everything really worked the way it was supposed to work. This is obviously not 'NOTE: variable is unitialized' when uninitialized variable is part of an array? The value for the variable What causes caused by a few very common mistakes. Misspellings Sometimes SAS will correct your spelling mistakes for you Each place is given by: (Number of times) at (Line):(Column).

LIBRIS titelinformation: The little SAS book : a primer : a programming approach / Lora D. Delwiche and Susan J. Slaughter.

Removing "Variable is Uninitialized" NOTE Messages When creating a new SAS table containing the definitions of new columns, which do not contain any actual data, the following NOTE message (s) are produced in the log window. NOTE: Variable st_date is uninitialized. NOTE: Variable 'first.something'n is uninitialized.

kvm-migration-don-t-use-uninitialized-variables.patch 0186-udev-also-create-old-sas-paths.patch

value. is a character string or a text expression. Omitting value produces a null value (0 … SAS writes a note to the log that the variable is uninitialized. When you do not specify a variable for all the named input data values, SAS sets _ERROR_ to 1 and writes a note to the log. THIS VARIABLE IS UNINITIALIZED Sometimes when one is coding a specified data set structure, some of the variables will be uninitialized. This results in the SAS Log message similar to: NOTE: Variable z is uninitialized. This is not acceptable if one is a member of the “Clean SAS Log” club.

Then SAS. uninitialized is written to the SAS log. If an initial value is specified, the variable will be written to the output dataset.
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NOTE: The SAS System stopped you can try this out one of three ways: 1.. john 1 a=. Well, okay, so the Character Values Have Been Converted To Numeric Values At The Places Given By: (line):(column).

NOTE: Variable 'first.something'n is uninitialized.
Copm manual 5th edition

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Once that is fixed (most of) your warnings should go away. You do still have some other bugs though, e.g. you use seconds as your input variable, but you then discard this and instead pass the uninitialised variable total to your function - you should probably just be using total as your input variable …

Needless to say both version of step1 produce the same dataset, in this case an empty dataset with variables 'value' and 'cat'. However: when running step1 in the way step1a is written, the SASlog will warn us that something is wrong: NOTE: Variable cat is uninitialized.