void erfgrid
(ymin, ystep, ymax, yformat) |
ERFPLT.C |
Level
2 |

float
ymin |
The minimum data value for the y axis. |

float
ystep |
The change in y between tick marks on the y axis. |

float
ymax |
The maximum data value for the y axis. |

char
*yformat |
The y axis format string. |

The routine erfgrid() draws the axes and grid lines that appear
on ERF or percent paper. The x axis of an ERF plot
is scaled on cumulative percentage. The y axis is scaled linearly.
Thus, the user has control over the y axis scaling only. Results
for a normal (Gaussian) distribution (a bell-shaped curve) are expected
to be a straight line on the ERF grid. The arguments for this routine are
similar to the y axis parameters of the graf()
routine. |