GSL HISTOGRAM PDF

Currently, only a raw interface exists. The bins and ranges must be initialized with one of the functions below before the histogram is ready for use. The values of the histogram bins are reset to zero. The bin is located using a binary search. The search includes an optimization for histograms with uniform ranges, and will return the correct bin immediately in this case.

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Currently, only a raw interface exists. The bins and ranges must be initialized with one of the functions below before the histogram is ready for use. The values of the histogram bins are reset to zero. The bin is located using a binary search. The search includes an optimization for histograms with uniform ranges, and will return the correct bin immediately in this case.

The range limits are stored in returned after 0 or 1 in this order : xlower and xupper. The lower limits are inclusive i. The functions returns 0 has first value to indicate success. The range limits are stored in returned after 0 or 1 in this order : ylower and yupper.

The two histograms must be of the same size. In the case where several bins contain the same maximum value the first bin found is returned.

In the case where several bins contain the same minimum value the first bin found is returned. Negative bin values are ignored for the purposes of this calculation.

Negative bin values are included in the sum. The two histograms must have identical bin ranges. Since the data is written in the native binary format it may not be portable between different architectures.

The data is assumed to have been written in the native binary format on the same architecture. The histogram output is formatted in five columns, and the columns are separated by spaces, like this, xrange[0] xrange[1] yrange[0] yrange[1] bin 0,0 xrange[0] xrange[1] yrange[1] yrange[2] bin 0,1 xrange[0] xrange[1] yrange[2] yrange[3] bin 0, Since the upper limits of the each bin are the lower limits of the neighboring bins there is duplication of these values but this allows the histogram to be manipulated with line-oriented tools.

The function returns 0 if the operation succeeded, 1 otherwise followed by the x and y values of the sample.

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GSL HISTOGRAM PDF

This function frees the histogram h and all of the memory associated with it. The two histograms must be of the same size. The functions for accessing the histogram through coordinates use a binary search to identify the bin which covers the appropriate range. If x lies in the valid range of the histogram then the function returns zero to indicate success. The error handler is not called, however, since it is often necessary to compute histograms for a small range of a larger dataset, ignoring the values outside the range of interest. If the index i is valid then the corresponding range limits are stored in lower and upper.

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