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NAME

       plhist - Plot a histogram from unbinned data

SYNOPSIS

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

DESCRIPTION

       Plots  a  histogram  from  n data points stored in the data vector.  This routine bins the
       data into nbin bins equally spaced between datmin and datmax, and calls plbin(3plplot)  to
       draw  the  resulting  histogram.   Parameter opt allows, among other things, the histogram
       either  to  be  plotted  in  an  existing  window  or  causes  plhist(3plplot)   to   call
       plenv(3plplot) with suitable limits before plotting the histogram.

       Redacted form: plhist(data, datmin, datmax, nbin, opt)

       This function is used in example 5.

ARGUMENTS

       n (PLINT(3plplot), input)
              Number of data points.

       data (PLFLT_VECTOR(3plplot), input)
              A vector containing the values of the n data points.

       datmin (PLFLT(3plplot), input)
              Left-hand edge of lowest-valued bin.

       datmax (PLFLT(3plplot), input)
              Right-hand edge of highest-valued bin.

       nbin (PLINT(3plplot), input)
              Number of (equal-sized) bins into which to divide the interval xmin to xmax.

       opt (PLINT(3plplot), 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(3plplot) 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).

AUTHORS

       Many  developers  (who  are credited at http://plplot.org/credits.php) have contributed to
       PLplot over its long history.

SEE ALSO

       PLplot documentation at http://plplot.org/documentation.php.

                                           April, 2024                            PLHIST(3plplot)