Hi, I was suprised to see there is no function in the gsl histogram module to find the bin corresponding to a given x value. There is an internal function called find() to accomplish this, but I think it would be useful to make an API for this routine.
For example I have an application in which I need to bin data and compute the mean of the data in each bin. This can be done with a running mean (keeping the current value of the mean as the bin value) but each time I store a new data point in the histogram, I need to find which bin it will be stored in so I can update the bin value appropriately. I propose to make a new function gsl_histogram_getbin() which simply calls the internal find() function to determine the bin number for a given x. This should probably also be done for the 2d case. Patrick Alken
