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GSL HISTOGRAM PDF

DESCRIPTION. Here is a list of all the functions included in this module: gsl_histogram_alloc($n) – This function allocates memory for a. GNU Scientific Library with CMake build support. Contribute to ampl/gsl development by creating an account on GitHub. It’s pretty easy, just use this tutorial to find and install GSL package. about how to draw a histogram with Gnuplot on Stackoverflow: Histogram using gnuplot?.

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gsl-histogram(1) – Linux man page

A histogram made by counting events can be regarded as a measurement of a probability distribution. Stack Overflow works best with JavaScript enabled. If you want to include this value for the last bin you will need to add an extra bin to your histogram. A probability histograj function is defined by the following struct, which actually stores the cumulative probability distribution function.

The search includes an optimization for histograms with uniform ranges, and will return the correct bin immediately in this case.

These functions find the upper and lower range limits of the i -th and j -th bins in the x and y directions of the histogram h. Both one and two-dimensional histograms are supported.

This can be useful for generating simulations based on real data. The lower limit is inclusive i. This function finds the indices of the bin containing hishogram minimum value in the histogram h and stores the result in ij. This function sets the ranges of the existing histogram h to cover the ranges xmin to xmax and ymin to ymax uniformly.

The bins and ranges are not initialized, and should be prepared using one of the range-setting functions below in order to make the histogram ready for use.

These functions return the maximum upper and hisotgram lower range limits and the number of bins of the histogram h. This function uistogram the ranges of the existing histogram h using the arrays xrange and yrange of size xsize and ysize respectively. You would also need to provide the Apple-provided libc on the Linux system. The functions for allocating memory to a histogram follow the style histtogram malloc and free.

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This function initializes the two-dimensional probability distribution calculated p from the histogram h. But luckily there is already a question about how to draw a histogram with Gnuplot on Stackoverflow: The function returns 0 to indicate success. This function frees the 2D histogram histograj and all of the memory associated with it.

These functions return the maximum upper and minimum lower range limits and the number of bins for the x and y directions of the histogram h. For example a detector might record both the position of an event and the amount of energy it deposited. First a by two-dimensional histogram is created with x and y running from 0 to 1. If the index i is valid then the corresponding range limits are stored in lower and upper.

This function finds the indices of the bin containing the maximum value in the histogram h and stores the result in ij. The histogram h must be preallocated with the correct size since the function gzl the number of bins in h to histotram how many bytes to read.

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This function initializes the probability distribution p with the contents of the histogram h. Header states merely the interface that is exposed by this library. The range array should contain the desired bin limits.

The algorithm used to compute the sample is given by the following formula. The ranges can be arbitrary, subject to the restriction that they are monotonically increasing. Note that any samples which fall on the upper sides of the histogram are excluded. Regarding the second question, I’ll update the posting above. The probability distribution function has the one-dimensional form where. The functions return 0 to indicate success. This function resets all the bins in the histogram h to zero.

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This function returns 1 if the all of the individual bin ranges of the two histograms are identical, and 0 otherwise. The range limits are stored in xlower and xupper or ylower and yupper.

This function multiplies the contents of the bins of histogram h by the constant scalei. I guarantee the system call numbers have changed and almost certainly calling conventions are different.

The bins can use arbitrary sets of ranges uniformly spaced bins are the default. The accuracy of the result is limited by the bin width.

Histograms — GSL documentation

So I think the you’d better just install it on your machine. This function writes the ranges and bins of the histogram h to the stream histlgram in binary format.

The library provides functions for reading and writing two dimensional histograms to a file as binary data or formatted text. The bins and ranges must be initialized with one of the functions below before the histogram is ready for use. In GSL the bins of a histogram contain floating-point numbers, so they can be used to record both integer and non-integer distributions.

You can access the bins of a two-dimensional histogram either by specifying a pair of coordinates or by using the bin indices directly. This function reads formatted data from the stream stream into the histogram h. Here is an example of the program in use.