
plhist: Plot a histogram from unbinned data 

DESCRIPTION:

    This function is used in example 5. 

SYNOPSIS:

plhist(n, data, datmin, datmax, nbin, opt)

ARGUMENTS:

    n (PLINT, input) :      Number of data points. 

    data (const PLFLT *, input) :    Pointer to array with values of the n
    data points. 

    datmin (PLFLT, input) :    Left-hand edge of lowest-valued bin. 

    datmax (PLFLT, input) :    Right-hand edge of highest-valued bin. 

    nbin (PLINT, input) :    Number of (equal-sized) bins into which to
    divide the interval xmin to xmax. 

    opt (PLINT, input) :    Is a combination of several flags:
    opt=PL_HIST_DEFAULT: The axes are automatically rescaled to fit
    the histogram data, the outer bins are expanded to fill up the
    entire x-axis, data outside the given extremes are assigned to the
    outer bins and bins of zero height are simply drawn. 
        opt=PL_HIST_NOSCALING|...: The existing axes are not rescaled
        to fit the histogram data, without this flag, plenv is called
        to set the world coordinates. 
        opt=PL_HIST_IGNORE_OUTLIERS|...: Data outside the given
        extremes are not taken into account. This option should
        probably be combined with opt=PL_HIST_NOEXPAND|..., so as to
        properly present the data. 
        opt=PL_HIST_NOEXPAND|...: The outer bins are drawn with equal
        size as the ones inside. 
        opt=PL_HIST_NOEMPTY|...: Bins with zero height are not drawn
        (there is a gap for such bins). 
