horseshoe - 8 months ago 57

R Question

I have some data (x) and want to determine which distribution fits them best.

I used:

`descdist(x, discrete = FALSE, boot = 1000)`

fit.norm<- fitdist(x, "norm")

plot(fit.norm)

fit.norm$aic

and did the same for weibull, gamma and lnorm. In the documentation I could not find a list of which other distributions (and the corresponding syntax) are possible. Does anyone know where I can find this information?

Answer Source

From the FAQ you get if you type `??fitdistplus`

As documented, we provide initial values for the following distributions: `norm`

, `lnorm`

, `exp`

, `pois`

, `cauchy`

, `gamma`

, `logis`

, `nbinom`

, `geom`

, `beta`

, `weibull`

from the stats package; `invgamma`

, `llogis`

, `invweibull`

, `pareto1`

, `pareto`

from the actuar package.

Documentation also suggests you can use any distribution if you can specify it or find it in a pre-existing package.