Re: [R] s.e. on interaction plots

2006-11-17 Thread Chuck Cleland
Murray Pung wrote: Is it possible to add standard error bars to the means on interaction plots? Not with interaction.plot(), as far as I know. You might consider the effects package by John Fox. For example: with(ToothGrowth, interaction.plot(dose, supp, len)) ToothGrowth$dose -

Re: [R] s.e. on interaction plots

2006-11-17 Thread Manuel Morales
On Fri, 2006-11-17 at 05:21 -0500, Chuck Cleland wrote: Murray Pung wrote: Is it possible to add standard error bars to the means on interaction plots? Not with interaction.plot(), as far as I know. You might consider the effects package by John Fox. For example: Another possibility is