Hi all, i have fitted a Four Parameters Logistic Regression for my X and Y data. i want to find the local slope of each data point, i would appreciate if somebody can help me on this , the attached image shows the fit

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Duminda Vidana Gamage
评论： Duminda Vidana Gamage 2018-1-11

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Ben Drebing
Ben Drebing 2017-12-21
Do you mean you want to calculate the slope at each point along the curve? If your curve is given by x and y, then you can get the slope at each point along the curve by doing
slopes = diff(y) ./ diff(x);

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