1PLBIN(3plplot) PLplot API PLBIN(3plplot)
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6 plbin - Plot a histogram from binned data
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9 plbin(nbin, x, y, opt)
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12 Plots a histogram consisting of nbin bins. The value associated with
13 the i'th bin is placed in x[i], and the number of points in the bin is
14 placed in y[i]. For proper operation, the values in x[i] must form a
15 strictly increasing sequence. By default, x[i] is the left-hand edge
16 of the i'th bin. If opt=PL_BIN_CENTRED is used, the bin boundaries are
17 placed midway between the values in the x vector. Also see
18 plhist(3plplot) for drawing histograms from unbinned data.
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20 Redacted form: General: plbin(x, y, opt) Python: plbin(nbin, x, y, opt)
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23 This function is not used in any examples.
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26 nbin (PLINT(3plplot), input)
27 Number of bins (i.e., number of values in x and y vectors.)
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29 x (PLFLT_VECTOR(3plplot), input)
30 A vector containing values associated with bins. These must
31 form a strictly increasing sequence.
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33 y (PLFLT_VECTOR(3plplot), input)
34 A vector containing a number which is proportional to the number
35 of points in each bin. This is a PLFLT (instead of PLINT) vec‐
36 tor so as to allow histograms of probabilities, etc.
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38 opt (PLINT(3plplot), input)
39 Is a combination of several flags: opt=PL_BIN_DEFAULT: The x
40 represent the lower bin boundaries, the outer bins are expanded
41 to fill up the entire x-axis and bins of zero height are simply
42 drawn. opt=PL_BIN_CENTRED|...: The bin boundaries are to be
43 midway between the x values. If the values in x are equally
44 spaced, the values are the center values of the bins.
45 opt=PL_BIN_NOEXPAND|...: The outer bins are drawn with equal
46 size as the ones inside. opt=PL_BIN_NOEMPTY|...: Bins with zero
47 height are not drawn (there is a gap for such bins).
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52 Many developers (who are credited at http://plplot.org/credits.php)
53 have contributed to PLplot over its long history.
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56 PLplot documentation at http://plplot.org/documentation.php.
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60 September, 2020 PLBIN(3plplot)