Re: [R] Mac/PC differences in lmer results

2019-06-05 Thread John via R-help
On Wed, 29 May 2019 18:44:26 +0200 Nicolas Schuck wrote: > Dear fellow R coders, > > I am observing differences in results obtained using glmer when using > a Mac or Linux computer versus a PC Just as an aside and point of information, both the Mac and the Linux systems are PCs, just as m

Re: [R] Mac/PC differences in lmer results

2019-06-05 Thread Alexandra Thorn
To check whether the data are being read in appropriately, what happens when you plot the distribution of each of the independent variables on the respective systems? -A On Wed, 5 Jun 2019 12:32:28 +0200 Olivier Crouzet wrote: > Hi, > > 32bit vs. 64bit systems? > > Another thing I would look

Re: [R] Mac/PC differences in lmer results

2019-06-05 Thread Olivier Crouzet
Hi, 32bit vs. 64bit systems? Another thing I would look at would be how the windows machine will read the data file. Though issues should probably only arise with respect to text data, I've often experienced problems with reading unicode csv files on windows computers compared with unix-based co

Re: [R] Mac/PC differences in lmer results

2019-06-05 Thread Nicolas Schuck
bert: you are right, sorry for not cc-ing the list. thanks also for the hint. I wanted to bring this up here again, emphasising that we do find in at least one case *a very large difference* in the p value, using the same scripts and data on a windows versus mac machine (see reproducible exampl

Re: [R] Mac/PC differences in lmer results

2019-05-30 Thread Bert Gunter
Unless there us good reason not to, always cc the list. I have done so here. The R Installation manual has some info on how to use different BLASes I believe, but someone with expertise (I have none) needs to respond to your queries. On Thu, May 30, 2019 at 7:50 AM Nicolas Schuck wrote: > I kno

Re: [R] Mac/PC differences in lmer results

2019-05-30 Thread Bert Gunter
The BLAS in use on each? Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Thu, May 30, 2019 at 5:27 AM Nicolas Schuck wrote: > Dear fellow R coders, > > I am o

[R] Mac/PC differences in lmer results

2019-05-30 Thread Nicolas Schuck
Dear fellow R coders, I am observing differences in results obtained using glmer when using a Mac or Linux computer versus a PC. Specifically, I am talking about a relatively complex glmer model with a nested random effects structure. The model is set up in the following way: gcctrl = glmerCo