void ylgscle (nxdiv, x, y, npts) LOGPLT.C Level 2
int nxdiv  The number of x axis divisions.
float *x  The vector of x data.
float *y  The vector of y data.
int npts  The number of data points in the x and y vectors.
The self-scaling axis routine, ylgscle(), finds the correct number of decades so that the logarithmic y axis can accommodate the data. Labels on log axes are always placed at the decade markings. Intermediate points are labeled depending on the spacing between divisions. The x axis is linear.