[R] determing the distribution of a sample data set etc..
annhuxtable at hotmail.com
Sat Nov 13 15:27:55 CET 2004
I have only recently started using R. I have two data samples that I want to
carry out some initial explorative data analysis to:
i). Determine the distribution of the data
ii). Determine whether both datasets are from the same distribution.
I have managed to create unit probability histograms and created qqplots for
the data. I have attached one of the qqplots. It is clear that the data is
not from a normal distribution (it forms a convex curve underneath the
straight line). the nature of the curve suggest the data is from either
Chi-square or F distribution (if you think otherwise, I would appreciate
your help in correcting my analysis).
The point of this mail however, is how do I use R to:
1). Test if the data is from another distribution (F, Ch-Square etc.. )
2). How can I check if the samples are drawn from the same distribution?
many thanks in advance for your help.
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