[R] permutation and reshuffling

Yonatan Nissenbaum
Tue, 01 Sep 2009 07:35:10 -0000

Hi,



I'm looking for an efficient code that will enable me to reshuffle data
(phenotype) for certain number of individuals and creating a loop that will
randomly simulate it for 10000 times *(permutation)*. I also need to find
how I keep the information (p value for each SNP) gathered for all the 10000
iterations.

My data set looks like this (n=500):

Individual #

Phenotype

SNP1

SNP2

SNP3

SNP4

SNP5

SNP6

SNP7

SNP8

SNP9

SNP10

SNP11

SNP12

1

0

T

T

G

G

A

C

G

T

A

A

T

C

2

1

A

T

C

G

A

C

G

T

A

G

T

C



Many thanks,



Jonathan

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