search for: zzzanova

Sorry i had a misprint in the appendix code in the last email Hi I needed some help with ANOVA I have a problem with My ANOVA analysis. I have a dataset with a known ANOVA p-value, however I can not seem to re-create it in R. I have created a list (zzzanova) which contains 1)Intensity Values 2)Group Number (6 Different Groups) 3)Sample Number (54 different samples) this is created by the script in Appendix 1 I then conduct ANOVA with the command > zzz.aov <- aov(Intensity ~ Group, data = zzzanova) I get a p-value of Pr(>F)1 0.9483218 The...

Hi I needed some help with ANOVA I have a problem with My ANOVA analysis. I have a dataset with a known ANOVA p-value, however I can not seem to re-create it in R. I have created a list (zzzanova) which contains 1)Intensity Values 2)Group Number (6 Different Groups) 3)Sample Number (54 different samples) this is created by the script in Appendix 1 I then conduct ANOVA with the command > zzz.aov <- aov(Intensity ~ Group, data = zzzanova) I get a p-value of Pr(>F)1 0.9483218 The...

...nt. I am doing this by first creating a structured list of the data and then conducting the ANOVA (Script provided below). Im an R beginner so am not sure if I am using this correctly. Two major questions I have are: 1) Is using the code (zzz.aov <- aov(Intensity ~ Group + Error(Sample), data = zzzanova)) the correct method to calculate the variances between the four groups (samp 1-4). I am unsure of the inclusion of the error portion. 2) I beleive this method (aov) assumes equal variances. How can I adjust this to do an ANOVA with unequal variances #####SCRIPT STARTS #Creates a structured li...

...y other value (e.g. DF) from the summary.Any suggestions?? I have tried sum<-summary(zzz.aov) > sum$Pr(>F) Error: unexpected '>' in "sum$Pr(>" > sum$"Pr(>F)" NULL > sum$Df NULL > zzz.aov <- aov(Intensity ~ Group + Error(Sample), data = zzzanova) > summary(zzz.aov) Error: Sample Df Sum Sq Mean Sq Group 1 6.0313e+10 6.0313e+10 Error: Within Df Sum Sq Mean Sq F value Pr(>F) Group 3 2.6012e+10 8.6707e+09 0.2934 0.8299 Residuals 34 1.0049e+12 2.9556e+10

Hello Everyone,   Learning about R and its wonderful array of functions. If it's not obvious, I usually try to find out what a function stands for. I think this helps me remember better.   One function that has me stumped is "sink." Can anyone tell me if this stands for something?   Thanks,   Paul         __________________________________________________ [[alternative HTML