I'm learning how a fit distributions to my data,I'm using the fitdist function of the fitdistrplus package, but for chi-squared distribution I need to give a named list with the initial values of parameter...
`surface.na.omit<-na.omit(cycle.data.frame$surf.time)`
`surface.na.omit`
[1] 0.6666667 1.3666667 1.2833333 1.3666667 1.5833333 1.5333333 0.6666667 [8] 3.5333333 1.4166667 2.4500000 0.3333333 0.7666667 1.6000000 0.3833333 [15] 0.2666667 >1.8000000 3.2166667 1.3166667 2.4333333 2.2833333 2.3166667 [22] 4.1000000 1.0500000 0.3500000 >1.3166667 2.8333333 0.3166667 1.8333333 [29] 1.4666667 1.9833333 3.3666667 1.7000000 2.0666667 >1.4333333 0.5666667
`parameters.chis.surf<-fitdistr(surface.na.omit, "chi-squared")`
Error en fitdistr(surface.na.omit, "chi-squared") : 'start' must be a named list
start is a named list giving the initial values of parameters of the named distribution. This argument may be omitted for some distributions for which reasonable starting values are computed >(see details), and will not be taken into account if a closed formula is used to estimate parameters.
but I don't have idea how to calculate or find this values...somebody can explain me this? :/ thank you so much...
Airy
