Hello, I am trying to perform an ANOVA on a dataframe like this:
ID Grup ML PC mI Gly Glx X373.txt 1 1 0.004685889 0.05994939 0.004589104 0.007144027 0.02042549 X373bis.txt 2 1 0.004685889 0.0599494 0.004589104 0.007144028 0.0204255 X376.txt 3 1 0.007604898 0.07600049 0.01935247 0.01678972 0.03363403 X392.txt 4 1 0.004982747 0.02760991 0.01855596 0.01413439 0.02013267 X483.txt 5 1 0.009131522 0.02636227 0.02485232 0.01493074 0.02532194 X520.txt 6 1 0.008553895 0.06304886 0.02490261 0.01907819 0.03356447 X671.txt 7 1 0.008004383 0.05243909 0.0229447 0.024266 0.03553224 X673A.txt 8 1 0.01306893 0.02799318 0.01155338 0.007668364 0.02123958 X673B.txt 9 1 0.006099385 0.0516078 0.03099324 0.02664487 0.03766267 X674.txt 10 1 0.005476397 0.04945545 0.01479742 0.01084873 0.02307815 X681.txt 11 1 0.009807893 0.01680487 0.004524913 0.004705414 0.008969453 X725.txt 12 1 0.01018343 0.0119391 0.007911063 0.008005791 0.01014625 X746.txt 13 1 0.008864319 0.02484126 0.01198048 0.01276371 0.01042683 X772.txt 14 1 0.005966057 0.07398342 0.0210399 0.01606057 0.02932874 X814.txt 15 1 0.01350947 0.0317243 0.003234958 0.002958675 0.005194511 X835.txt 16 1 0.005509359 0.02670237 0.07425323 0.04095533 0.031017 X847.txt 17 1 0.004784228 0.05349206 0.01183679 0.01230316 0.03073348 X851.txt 18 1 0.004395889 0.03812635 0.01998653 0.02165763 0.02074277 X865.txt 19 1 0.001514055 0.07128447 0.0106887 0.00802192 0.01478855 X878.txt 20 1 0.003693918 0.03864821 0.01571797 0.01972568 0.022711 et2029.txt 21 1 0.05204285 0.03769878 0.03168799 0.03631842 0.02732589 et2348.txt 22 1 0.01407517 0.01679014 0.004900163 0.004243802 0.01052361
The table is truncated because it's very big, but it has 3 different groups (Grup variable) and it's called GBM.
I try to use the command: aov(GBM$Grup~GBM$ML,data=GBM) But I get this error: /Error in storage.mode(y) <- "double" : invalid to change the storage mode of a factor In addition: Warning message: In model.response(mf, "numeric") : using type="numeric" with a factor response will be ignored/ How can I solve this? Best, Dani -- Daniel Valverde Saubí Grup de Biologia Molecular de Llevats Facultat de Veterinària de la Universitat Autònoma de Barcelona Edifici V, Campus UAB 08193 Cerdanyola del Vallès- SPAIN Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN) Grup d'Aplicacions Biomèdiques de la RMN Facultat de Biociències Universitat Autònoma de Barcelona Edifici Cs, Campus UAB 08193 Cerdanyola del Vallès- SPAIN +34 93 5814126 ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
