For most fields, graphs are the most common form of visual presentation for data. Graphs exist in numerous shapes and formats, but as a rule, should only be used to present trends or relationships ...

SAS reads the first observation from the first data set into the program data vector. It processes the first observation and executes other statements in the DATA step. It then writes the contents of ...

Scatter graphs are a good way of displaying two sets of data to see if there is a correlation close correlationThe relationship between two sets of data. Usually described as positive or negative ...