Syntax
[C/C++:]
void ggPlotHistogram(int ncols, float *yarray, float frac, int scy, float vbeg, float vend);
[F90:]
subroutine ggPlotHistogram(ncols, yarray, frac, scy, vbeg, vend)
integer, intent(in) :: ncols, scy
real, intent(in) :: yarray(*), frac, vbeg, vend
Arguments
ncols
The number of columns to be plotted
yarray
Array, of dimension
ncols, giving the heights of the columns to be plotted on the Histogram
frac
Fraction of an interval to be occupied by each column
scy
The type of scaling used on the Y axis
|
= GLINEAR |
Linear scale on Y axis |
|
= GLOG10 |
Log10 scale on Y axis |
vbeg
Value specifying the centre value of the first column on the X axis
vend
Value specifying the centre value of the last column on the X axis
Description
The routine ggPlotHistogram() draws a frame to fit the available drawing area or current window and plots a Histogram within it. The columns on the Histogram have the width:
((length of X axis)/
ncols) *
frac.
If
frac = 1.0, only the necessary verticals are drawn, ie, lines common to two columns are omitted. If
frac = 0.0, two coincident vertical lines are drawn centred on the tick mark. If
frac 0.0, the default value is 0.0 and if
frac 1.0, the default value is 1.0. Each column has the height defined in array
yarray.
The Histogram is automatically scaled and annotated to make maximum use of the drawing area. If
vbeg =
vend, no numeric annotation is written on the X axis. The type of scaling on the continuous axis is defined by the value given in
scy. The default axes annotation may be changed using the routines ggSetAxesAnnotation() and/or ggSetAxesAttribs().
See Also
ggPlotHistogram UsageggSetAxesAnnotationggSetAxesAttribsggSetPlotFrameggFillHistogramggAddHistogramValues
