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Hello everyone, With th bar histogram (number of occurrences) hist<-c(24,7,4,1,2,1,1) of seven equally spaces classes ]1-4], ]5-8], ]9-12], ]13-16], ]17-20], ]21-24], ]25-28], I obtained shape=0.8276 and rate=0.1448. I would like to know how to build the continuous pdf of a this gamma distribution knowing these two estimated parameters such that I will be able to predict the pdf of any

Hello all, I would like to read the specific line number row of a direct access file (which is stored as a n_row*n_col matrix of elements kind=p) without reading all the preceding lines (i.e 1,2,..,row-1). Is there a function in R that can perform this task? To solve my issue, I tried without to call Fortran from R by doing the following steps: I) I wrote a subroutine in fortran called

Hello everyone, I try without success to install the package rPython I get the message ----------------------------------------------------------------------- * installing *source* package ‘rPython’ ... could not locate python-config ERROR: configuration failed for package ‘rPython’ * removing ‘/home/armel/R/x86_64-pc-linux-gnu-library/2.14/rPython’ The downloaded packages are in

Dear all, I'm modeling growth curve of some ecosystems with respect to their rainfall-productivity relationship using a simple linear regression (ANPP(t)=a+b*Rain(t)) and a modified version of the Brody Model ANPP(t)=a*(1-exp(-b*rain(t))) I would like to know why the "best model" is function of the criteria that I use (maximizing the fit using R2 or testing the Null hypothesis with

Hello everyone, I'm trying to perform some trend analysis using the package "Kendall" and for some observations I get the following error "WARNING Error exit, tauk2, IFAULT = 12" Could anyone tell me how to create a logical vector of observations having its element equal to TRUE if this error happened and FALSE if not? I'm thinking about something similar as