Variables can be character or numeric.
Graphs are automatically scaled to the values of the character data or to include the values of numeric data, but you can control scaling with procedure options or with associated AXIS statements. In addition, regression lines and confidence limits will represent only part of the original data. Therefore, if you use any type of interpolation that generates a line, sort your data by the horizontal axis variable. If your data contain logarithmic values or if the data values vary over a wide range or contain large values, you may want to specify a logarithmic axis for the horizontal or vertical axis. All rights reserved.