On Tuesday, June 24, 2014 7:02:44 PM UTC-4, 张秦川 wrote: > > I am so sorry that I forget about this as the 'gaussian'distribution in > sage only take one parameter sigma. I think 'normal' distribution should > have two parameters mu and sigma. > > Correct, currently you have to "manually" shift it around - I think there are some examples in the documentation or perhaps in the PREP tutorials. See https://groups.google.com/forum/#!topic/sage-support/eD7xBdvd6YE among other places where there are things about this. I agree this is suboptimal, but also perhaps the authors of the GSL had a reason for not using mu?
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