Macro Library Logistic

Logistic regression functions, Version 1, July 2019

logisticregression

logisticregression(x_array,y_array)

Fits a logistic curve to the data given in x_array and y_array. Returns an array(a,b,c), which are the coefficients for the logistic curve c / (1 + a e^(-b x)). The values will be accurate to 4 or 5 significant digits, but likely will not exactly match regression preformed by other technology.

logisticpredict

logisticpredict(coefficients, x)

Uses an array of coefficients, returned by logisticregression, to predict the output for the given x value.

logisticsolve

logisticsolve(coefficients, y)

Uses an array of coefficients, returned by logisticregression, to solve for an input given a y value.