Re: [R] ANOVA in R

2018-10-10 Thread Jim Lemon
actions. > > Jim > On Wed, Oct 10, 2018 at 5:14 PM Thanh Tran wrote: > > > > Hi eveyone, > > I'm studying about variance (ANOVA) in R and have some questions to share. > > I read an article investigating the effect of factors (temperature, Asphalt > >

Re: [R] ANOVA in R

2018-10-10 Thread Jim Lemon
(*) for the interactions. Jim On Wed, Oct 10, 2018 at 5:14 PM Thanh Tran wrote: > > Hi eveyone, > I'm studying about variance (ANOVA) in R and have some questions to share. > I read an article investigating the effect of factors (temperature, Asphalt > content, Air voids, and sample thickness)

Re: [R] ANOVA in R

2018-10-10 Thread Paul Johnson
t post hoc comparisons. In car package, Anova function will help. I may teach Anova soon, we'll see if I have better answer then. Paul Johnson University of Kansas On Wed, Oct 10, 2018, 1:14 AM Thanh Tran wrote: > Hi eveyone, > I'm studying about variance (ANOVA) in R and have some questio

[R] ANOVA in R

2018-10-10 Thread Thanh Tran
Hi eveyone, I'm studying about variance (ANOVA) in R and have some questions to share. I read an article investigating the effect of factors (temperature, Asphalt content, Air voids, and sample thickness) on the hardness of asphalt concrete in the tensile test (abbreviated as Kic). Each condition

[R] ANOVA in R

2013-12-07 Thread Robin Mjelle
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Re: [R] ANOVA in R

2013-12-07 Thread Bert Gunter
I think you start by doing your homework: 1. Read An Inroduction to R (ships with R) or other R online tutorial. There are many good ones. 2. Use R's Help system: ?aov ?lm ?anova there will be relevant links in these docs that you should follow, especially to the use of formulas for model

Re: [R] ANOVA in R

2009-02-04 Thread ONKELINX, Thierry
-boun...@r-project.org] Namens Samor Gandhi Verzonden: woensdag 4 februari 2009 7:43 Aan: r-help@r-project.org Onderwerp: [R] ANOVA in R Hi,I'm using a repeated measures ANOVA in R using lme(). The SAS code would be:   PROC MIXED DATA=[data set below]; CLASS pid treat period time seq

Re: [R] ANOVA in R

2009-02-04 Thread Samor Gandhi
] ANOVA in R To: samorgan...@yahoo.com, r-help@r-project.org Cc: r-sig-mixed-mod...@r-project.org Date: Wednesday, February 4, 2009, 3:21 PM Dear Samor, Note that the R-Sig-mixed-models is more suitable for that kind of questions. You need to add +, : or * between the variables in the formula

[R] ANOVA in R

2009-02-04 Thread Samor Gandhi
Hi,I'm using a repeated measures ANOVA in R using lme(). The SAS code would be:   PROC MIXED DATA=[data set below]; CLASS pid treat period time seq; MODEL Y = seq period treat time treat*time; REPEATED time / SUBJECT=pid TYPE=cs; RUN,  I donot have SAS, instead I have R and I would

[R] ANOVA in R

2009-02-03 Thread Samor Gandhi
Hi, I'm using a repeated measures ANOVA in R using lme(). The SAS code would be: PROC MIXED DATA=[data set below]; CLASS pid treat period time seq; MODEL Y = seq period treat time treat*time; REPEATED time / SUBJECT=pid TYPE=cs;RUN, I donot have SAS, instead I have R and I would

[R] ANOVA in R

2009-01-29 Thread Amit Patel
Hi I Have a very large dataset that I would like to conduct ANOVA tests on. Im not a very strong programmer so any help would be appreciated. the format is Identifier             A1       A2        B1      B2       C1   C2      Norm1       Â