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Asked: 2026-05-18T21:58:51+00:00

I don’t do much coding outside of Matlab, but I have a need to

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I don’t do much coding outside of Matlab, but I have a need to export my Matlab code to another language, most likely C. My Matlab code includes a histogram function, histc(), that places my input data (which is double-precision, not integer) into a specified array of bins, to form a histogram.

I’m sure I can piece together a couple nested loops to generate a histogram function, but I need this function to be fast and memory-light, as it will be accessed repeatedly and often.

To avoid re-inventing the wheel, anyone know if C language has any existing histogram function(s) available for use, or whether people needing such a thing generally create it themselves?

Anyone know an efficient algorithm for creating a histogram? Pseudo-code is fine.

Thanks in advance.

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1 Answer

  1. Editorial Team

    GSL (GNU Scientific Library) contains a histogram implementation.

    Here is the documentation: http://www.gnu.org/software/gsl/manual/html_node/Histograms.html.

    And here is an example use: http://www.gnu.org/software/gsl/manual/html_node/Example-programs-for-histograms.html.

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