scipy.stats.expon.fit() with no location parameter
I am using scipy.stats.expon.fit(data) to fit an exponential distribution to my data. This appears to return two values where I would expect one. The documentation online doesn't seem to say what fit() returns but looking at the source, I am guessing it is both a location and scale parameter. Can you fix the location parameter to 0 when doing the fitting?
Answer
In the call to expon.fit, use floc=0:
In [5]: data = expon.rvs(0, 1.5, 1000)
In [6]: loc, scale = expon.fit(data, floc=0)
In [7]: scale
Out[7]: 1.4878030368336586
In [8]: loc
Out[8]: 0