Re: [R] Change sum of squares type for ANOVA

2016-05-20 Thread Michael Dewey
Dear Michael F What you say is of course true but Michael E (or possibly Simone) seems to be using a function glht from an unnamed package. Since we do not have the data or the offending output it is hard to be sure though. Michael D On 20/05/2016 13:49, Michael Friendly wrote: Use car::Ano

Re: [R] Change sum of squares type for ANOVA

2016-05-20 Thread Fox, John
rofessor McMaster University Hamilton, Ontario Canada L8S 4M4 Web: socserv.mcmaster.ca/jfox > -Original Message- > From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of Michael > Friendly > Sent: May 20, 2016 8:50 AM > To: michael.eisenr...@agroscope.admin.ch; r-help@r-project

Re: [R] Change sum of squares type for ANOVA

2016-05-20 Thread Michael Friendly
Use car::Anova() for type II and type III sums of squares and F-tests. The sequential type I tests computed by anova() are rarely sensible On 5/20/2016 3:11 AM, michael.eisenr...@agroscope.admin.ch wrote: Dear R-list members, I compared my statistics with my supervisor yesterday. He is using ST

[R] Change sum of squares type for ANOVA

2016-05-20 Thread michael.eisenring
Dear R-list members, I compared my statistics with my supervisor yesterday. He is using STATISTICA, I am using R. We both loaded the same data-file and did a two-way ANOVA with treatment and trial as factors; treatment means were then compared to the untreated control using Dunnett's test. Surp