For example, 'abc.lst' or 'median.lst', etc. Log File Log outcome of each statement in your SAS source code as the SAS executes them. Thus, always take a look at log file first after each SAS source code execution to determine whether the execution was successful . For example, 'abc.log' or 'median.log', etc. Data may be either text or numerical.
Text are characters, numbers, and symbols.
Numerical data are numbers that will be used mathematically. A data set is named by the user with the DATA statement. SAS reads each line of your input and writes it to a SAS data set as an observation. SAS scans the first card for the first nonblank column, reads the value through the next blank, and assigns it to the first variable name. The next nonblank column is the beginning of the next value and so on until the card is finished.