Dear all, I am just trying to replicate this MATLAB example of the Gamma probability density function: http://de.mathworks.com/help/stats/gampdf.html?requestedDomain=www.mathwo... According to this, Matlab yields for shape=scale=1 and a x-vector seq(1,5) : y = 0.3679 0.3033 0.2388 0.1947 0.1637 but with gretl I obtain correctly (just checked it with some statistical tables) y (1 x 5) 0.36788 0.13534 0.049787 0.018316 0.0067379 <hansl> mu = seq(1,5) y = pdf(g,1,1,mu) </hansl> Just out of curiosity: What is Matlab doing? (the same results are obtained by Octave) Artur

No. Sorry I confuse de parameters. Excel makes gives de same results. On 16/02/2016 14:28, Juan C. Estévez wrote: > Maybe Matlab calculates gamma(X, a, b), not gamma (a, b, X)? > > On 16/02/2016 13:08, Artur T. wrote: >> Dear all, >> >> I am just trying to replicate this MATLAB example of the Gamma >> probability density function: >> >> http://de.mathworks.com/help/stats/gampdf.html?requestedDomain=www.mathwo... >> >> According to this, Matlab yields for shape=scale=1 and a x-vector seq(1,5) : >> y = 0.3679 0.3033 0.2388 0.1947 0.1637 >> >> but with gretl I obtain correctly (just checked it with some statistical >> tables) >> y (1 x 5) >> 0.36788 0.13534 0.049787 0.018316 0.0067379 >> >> <hansl> >> mu = seq(1,5) >> y = pdf(g,1,1,mu) >> </hansl> >> >> Just out of curiosity: What is Matlab doing? (the same results are >> obtained by Octave) >> >> Artur _______________________________________________ Gretl-devel mailing list Gretl-devel(a)lists.wfu.edu http://lists.wfu.edu/mailman/listinfo/gretl-devel

Sorry. I mean that in Matlab example, varies de B parameter, but in gretl example I think that the X varies. No? On 16/02/2016 14:32, Artur T. wrote: > Yes, just the syntax differs but of course results should be the same. > > So you can confirm that Excel computes the same values as gretl does? > > Artur > > Am 16.02.2016 um 14:29 schrieb Juan C. Estévez: >> No. Sorry I confuse de parameters. Excel makes gives de same results. >> >> On 16/02/2016 14:28, Juan C. Estévez wrote: >>> Maybe Matlab calculates gamma(X, a, b), not gamma (a, b, X)? >>> >>> On 16/02/2016 13:08, Artur T. wrote: >>>> Dear all, >>>> >>>> I am just trying to replicate this MATLAB example of the Gamma >>>> probability density function: >>>> >>>> http://de.mathworks.com/help/stats/gampdf.html?requestedDomain=www.mathwo... >>>> >>>> According to this, Matlab yields for shape=scale=1 and a x-vector seq(1,5) : >>>> y = 0.3679 0.3033 0.2388 0.1947 0.1637 >>>> >>>> but with gretl I obtain correctly (just checked it with some statistical >>>> tables) >>>> y (1 x 5) >>>> 0.36788 0.13534 0.049787 0.018316 0.0067379 >>>> >>>> <hansl> >>>> mu = seq(1,5) >>>> y = pdf(g,1,1,mu) >>>> </hansl> >>>> >>>> Just out of curiosity: What is Matlab doing? (the same results are >>>> obtained by Octave) >>>> >>>> Artur >> >> >> _______________________________________________ >> Gretl-devel mailing list >> Gretl-devel(a)lists.wfu.edu >> http://lists.wfu.edu/mailman/listinfo/gretl-devel >> > _______________________________________________ > Gretl-devel mailing list > Gretl-devel(a)lists.wfu.edu > http://lists.wfu.edu/mailman/listinfo/gretl-devel > _______________________________________________ Gretl-devel mailing list Gretl-devel(a)lists.wfu.edu http://lists.wfu.edu/mailman/listinfo/gretl-devel