### `plbin`: Plot a histogram from binned data

 ``` plbin ```(nbin, x, y, opt);

Plots a histogram consisting of `nbin` bins. The value associated with the i'th bin is placed in `x`[i], and the number of points in the bin is placed in `y`[i]. For proper operation, the values in `x`[i] must form a strictly increasing sequence. By default, `x`[i] is the left-hand edge of the i'th bin. If `opt`=PL_BIN_CENTRED is used, the bin boundaries are placed midway between the values in the `x` array. Also see `plhist` for drawing histograms from unbinned data.

 `nbin` (PLINT, input) Number of bins (i.e., number of values in `x` and `y` arrays.) `x` (PLFLT *, input) Pointer to array containing values associated with bins. These must form a strictly increasing sequence. `y` (PLFLT *, input) Pointer to array containing number of points in bin. This is a PLFLT (instead of PLINT) array so as to allow histograms of probabilities, etc. `opt` (PLINT, input) Is a combination of several flags: `opt`=PL_BIN_DEFAULT: The `x` represent the lower bin boundaries, the outer bins are expanded to fill up the entire x-axis and bins of zero height are simply drawn. `opt`=PL_BIN_CENTRED|...: The bin boundaries are to be midway between the `x` values. If the values in `x` are equally spaced, the values are the center values of the bins. `opt`=PL_BIN_NOEXPAND|...: The outer bins are drawn with equal size as the ones inside. `opt`=PL_BIN_NOEMPTY|...: Bins with zero height are not drawn (there is a gap for such bins).

Redacted form:

• General: `plbin(x, y, opt)`

• Perl/PDL: `plbin(nbin, x, y, opt)`

• Python: `plbin(nbin, x, y, opt)`

This function is not used in any examples.