[R] Help with maximum likelihood estimation

I am analyzing animal movement pattern using levy flight pattern and want to fit power function to observed data and estimate exponent using Maximum Likelihood Estimation. I am using lff<-function(mu){1-1/mean(log(x))} library(stats4) mle(lff, start = list(mu = 1)) where x is the observed data.

[R] Species scores on PCoA

Dear members, I am conducting principal coordinates anaysis on a set of morphometry data. I have 6 variables and 27 samples. I used almost all the packages for PCoA, and plotted ordination using orditkplot. I want to know is there any way i can add variables scores in the same plot. I want to ch

Re: [R] R beginner

Hi andrew Stick to one tutorial before you get confident enough. I found this one very good. informative, easy to understand and best thing you basically try everything out on sample files provided. word of caution though instead of using ctrl+R command in script file, manually type it in consol i

[R] help interpreting dudi.pco

I am working on morphometry of hairs and want to see if selected variables are giving significantly distinct groups. I am new to both R and principal coordinate analysis. Scatter plot is showing distinct groups but i dont know how to refine the analysis and interprete it. [[alternative HT