Re: [R] ANOVA in R

2018-10-10 Thread Jim Lemon
Hi again, Two things, I named the data frame SR as shown in the model. The other is for those who may wish to answer the OP. The mediafire website is loaded with intrusive ads and perhaps malware. Jim On Thu, Oct 11, 2018 at 9:02 AM Jim Lemon wrote: > > Hi Tranh, > I'm not sure why you are conver

Re: [R] ANOVA in R

2018-10-10 Thread Jim Lemon
Hi Tranh, I'm not sure why you are converting your variables to factors, and I think the model you want is: lm(KIC~temperature+AC+AV+Thickness+temperature:AC+ temperature:AV+temperature:thickness+AC:AV+ AC:thickness+AV:thickness,SR) Note the colons (:) rather than asterisks (*) for the interact

Re: [R] ANOVA in R

2018-10-10 Thread Paul Johnson
We cannot read your message. Should post pure text, not html. Hm, my phone now may post html, must try to stop. Your R code not legible. It seems to be output? Lines all run together. I tried find articles you mention, but "not found" resulted. You should use aov() for fitting, then get post hoc c

[R] ANOVA in R

2018-10-09 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 w

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 spec

[R] ANOVA in R

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

2009-02-04 Thread Samor Gandhi
Thank you very much.   Is the following model would be corresponding to the data?   Y_ijklt = m + a_l + b_k + c_j + d_t + (cd)_jt + u_ijklt   Cheers, Samor --- On Wed, 2/4/09, ONKELINX, Thierry wrote: From: ONKELINX, Thierry Subject: RE: [R] ANOVA in R To: samorgan...@yahoo.com, r-help@r

Re: [R] ANOVA in R

2009-02-04 Thread ONKELINX, Thierry
Van: r-help-boun...@r-project.org [mailto:r-help-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]

[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 li

[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         N