[R] test ANOVA/ANCOVA

[sebastien boutry]

Hello everybody,


I search a test for compare the k means but I have one quantitative variable 
and two groups date, traitement. And I suppose my samples are dependant with 
the date.
What the statistical test would I use?
Thank you.

my data:

date	EU	DW
wk1	EU1	5,324547829
wk1	EU1	7,321253265
wk1	EU1	4,431712065
wk1	EU2	8,230322407
wk1	EU2	8,546873269
wk1	EU2	5,657332069
wk1	EU3	3,165508618
wk1	EU3	4,431712065
wk1	EU3	1,899305171
wk2	EU1	2,163097556
wk2	EU1	17,61379438
wk2	EU1	15,82754309
wk2	EU2	16,46064481
wk2	EU2	19,30960257
wk2	EU2	13,92823792
wk2	EU3	6,014466374
wk2	EU3	7,280669822
wk2	EU3	5,064813789
wk4	EU1	11,03179753
wk4	EU1	29,75578101
wk4	EU1	22,71252433
wk4	EU2	27,85647584
wk4	EU2	36,71989997
wk4	EU2	20,11680727
wk4	EU3	13,59661321
wk4	EU3	13,2951362
wk4	EU3	14,56133964
wk6	EU1	30,73875474
wk6	EU1	33,27842393
wk6	EU1	35,27512937
wk6	EU2	31,2817185
wk6	EU2	41,53147307
wk6	EU2	35,57093758
wk6	EU3	8,652390223
wk6	EU3	18,6359174
wk6	EU3	15,30807501

_________________________________________________________________
Avec Windows Live OneCare éliminez tous les virus de votre PC !