Re: [R] analysis of variance test

2015-05-29 Thread Jim Lemon
Hi Nezahat, First, you are storing the code of the function "numeric" in x1 and x2. You probably want to use: x1<-numeric() x2<-numeric() Second, you are then storing the output of your aov summary (a list) in x1, which requires a bit of analysis to get the information you want (i.e. p value). Th

Re: [R] analysis of variance test

2015-05-29 Thread Michael Dewey
Dear Nezahat In future it would be helpful if you 1 - gave us the data so we can reproduce what you are doing 2 - told us what the error was in case we cannot replicate ti 3 - did not post in HTML as it messes up everything in your post What did you think x1 <- numeric was going to do? Try x1 <-

[R] analysis of variance test

2015-05-28 Thread Nezahat HUnter
Let's say I have 12 observation of 5 variables and my first variable is categorical (with 4 different levels). I am trying to find out statistical significance difference between these categorical levels for each variable, but my  function is not working! Please note that my data "x" are in dat

Re: [R] Analysis of Variance

2012-11-29 Thread arun
1 A.K. - Original Message - From: David Arnold To: r-help@r-project.org Cc: Sent: Thursday, November 29, 2012 3:39 PM Subject: [R] Analysis of Variance Hi, I am encountering a difficulty I don't understand. Be patient, I'm very new to analysis of variance. If I load this da

Re: [R] Analysis of Variance

2012-11-29 Thread Andrés Aragón Martínez
Hi D, R is taking drug as numeric, you ned indicate to R that drug is a factor: > example12_7$drug <-factor(example12_7$drug) > ej2<-aov(time~drug,data=example12_7) > summary(ej2) Df Sum Sq Mean Sq F value Pr(>F) drug 2 21.98 10.991 4.188 0.0345 * Residuals 16 41.99

[R] Analysis of Variance

2012-11-29 Thread David Arnold
Hi, I am encountering a difficulty I don't understand. Be patient, I'm very new to analysis of variance. If I load this data: example12_7=read.table("http://msemac.redwoods.edu/~darnold/math15/data/chapter12/example12_7.dat",header=TRUE) The run the oneway.test: oneway.test(time~drug,data=examp

[R] analysis of variance using lmer

2009-02-26 Thread Lars Kunert
Hi, I am trying to do an analysis of variance for an unbalanced design. As a toy example, I use a dataset presented by K. Hinkelmann and O. Kempthorne in "Design and Anaylysis of Experiments" (p353-356). This example is very similar to my own dataset, with one difference: it is balanced. Thus it is