pwc_plot_1d, a MATLAB code which plots piecewise constant (PWC) data.
Suppose you want to plot a piecewise constant function as N bars of varying heights and widths, or as a sequence of step functions. This is NOT quite a bar plot or histogram, and it's not the line graph created by connecting the data points.
The pwc_plot_1d() library assumes that your function is defined as N+1 breakpoints X and N values Y. That is, between X(I) and X(I+1), your function has the value Y(I), for I from 1 to N. The bar plot or line plot should exactly correspond to this idea.
To create the correct bar plot or line graph, the library converts your X and Y data into vectors XP and YP of length 2*N+2 or 3*N+1 which, if simply given to MATLAB's plot() command, will display the corresponding piecewise constant function.
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
pwc_plot_1d is available in a MATLAB version.
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