set ylab option
Controls the format of Y-axis tick mark labels. The
argument may be one of the following:
labeled tick marks are drawn with default characteristics
labeled tick marks are not drawn
gives a C-language template for conversion of the label value to a string
- If the Y axis represents latitude, then the default behavior is to label the equator
with "EQ" and append either "N" or "S" to all other tick mark labels depending
on the hemisphere.
- Changes to the Y-axis tick mark labels are reset by clear, but not display.
- This command would cause all Y-axis labels to have 2 digits after the decimal point: