Is the log function in SAS natural log?

Returns the natural logarithm (base e) of a numeric value expression.

Can you write functions in SAS?

Fortunately, SAS today has a procedure specifically for defining custom functions, and it can be used by programmers who know how to program a SAS data step. The SAS Function Compiler (FCMP) Procedure is used to create and store custom SAS functions and subroutines.

What is a log in SAS?

Structure of the Log The SAS log is a record of everything that you do in your SAS session or with your SAS program. Depending on the setting of SAS system options, the method of running SAS, and the program statements that you specify, the log can include the following types of information: program statements.

How do you log a variable in SAS?

To perform a log transformation in SAS requires one argument as input into the log function. Most commonly, the argument supplied is the name of the variable. You can also specify a numeric constant or expression, aside from a variable. Second, the argument must be a positive numeric constant, variable or expression.

What is %macro in SAS?

%MACRO macro-name; macro-text %MEND macro-name; SUGI 29 Tutorials Page 4 4 The %MACRO statement tells SAS that this is the beginning of the macro and the %MEND statement signals the end of the macro. Macro-name is a name you make up for your macro.

How do I view SAS logs?

Log Window

  1. To display the Log window, select View.
  2. Click the SAS tab to view the contents of the SAS log.
  3. The System tab in the Log window shows detailed information in the form of system messages.
  4. The Find button is located at the bottom left of the window.

How do you do natural log transformation in SAS?

How many types of functions are there in SAS?

SAS has more than 190 functions for a variety of programming tasks.