On Dec 7, 2009, at 11:38 AM, oscar linares wrote:
Dear Wiza[R]ds,
I have the following data in a data.frame. I need to do an anova with
multiple comparison but I don't know how to factor the groups for
analysis.
There are 3 groups, 1,2 and 3 labelled in column 1. Help appreciated
with
thanks in advance.
Wouldn't it just be:
dfrm$Group <- factor(dfrm$Group)
?factor
--
David
Group SI Sif SG Io I2
lol2
1 9.08e-05 9.08e+00 0.060842287 1.798556446 32.574500 34.37306
1 2.65e-05 2.65e+00 0.003231478 2.655825884 65.929661 68.58549
1 0.00e+00 0.00e+00 0.000000000 3.522121885 73.543024 77.06515
1 1.68e-05 1.68e+00 0.002958672 4.655116799 53.436267 58.09138
1 1.06e-06 1.06e-01 0.000483373 2.020228717 3.458982 5.47921
1 0.00e+00 0.00e+00 0.097785539 4.148313577 87.560551 91.70887
2 3.27e-05 3.27e+00 0.020160681 3.506062628 45.229857 48.73592
2 1.63e-05 1.63e+00 0.016336170 3.824083293 71.139331 74.96341
2 4.47e-05 4.47e+00 0.021202062 7.895615485 57.452354 65.34797
2 4.38e-05 4.38e+00 0.018721502 4.243604679 110.506859 114.75046
2 0.00e+00 0.00e+00 0.044930944 13.552492860 88.273415 101.82591
2 4.30e-05 4.30e+00 0.027125295 6.426449035 55.102468 61.52892
2 3.80e-05 3.80e+00 0.029939680 0.007273809 92.734675 92.74195
2 3.65e-06 3.65e-01 0.029382519 0.000221684 103.705858 103.70608
2 6.36e-06 6.36e-01 0.023179423 1.228886505 127.803373 129.03226
2 5.86e-13 5.86e-08 0.032732405 1.379044031 104.847896 106.22694
2 5.71e-06 5.71e-01 0.011643722 2.680653511 77.883436 80.56409
2 5.86e-13 5.86e-08 0.021973461 1.094195321 49.400687 50.49488
2 5.86e-13 5.86e-08 0.020197172 2.084520515 51.311323 53.39584
2 3.07e-06 3.07e-01 0.000000000 2.308138714 121.203022 123.51116
3 5.26e-05 5.26e+00 0.012185655 3.348526610 35.880625 39.22915
3 4.23e-05 4.23e+00 0.028480923 1.709440176 54.767838 56.47728
3 5.56e-05 5.56e+00 0.000000000 1.429574183 41.604787 43.03436
3 9.12e-06 9.12e-01 0.035704097 0.124131665 45.062952 45.18708
3 2.99e-05 2.99e+00 0.010169719 1.261369666 51.920969 53.18234
3 4.32e-05 4.32e+00 0.000490530 0.000000000 16.030226 16.03023
Oscar
--
Oscar
Oscar A. Linares, MD
Translational Medicine Unit
LaPlaisance Bay, Bolles Harbor
Monroe, Michigan 48161
Department of Medicine,
University of Toledo College of Medicine
Toledo, OH 43606-3390
Department of Internal Medicine,
The Detroit Medical Center (DMC)
Harper University Hospital
Wayne State University School of Medicine
Detroit, Michigan 48201
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