down to writing functions.
Best,
Russell S. Pierce, M.A.
Visual Cognition Lab
Department of Psychology
University of California, Riverside
900 University Avenue
Riverside, CA 92521
Lab Phone: (951) 827-7399
On Sat, Jan 29, 2011 at 9:12 AM, Russell Pierce wrote:
> Just in case someone e
David,
Thanks for your feedback. However, I think if you look at the mean of
your output (which, as a minor point, doesn't provide the same data to
predict as expand.grid(X1=c(-1,0,1),X2=c(-1,0,1)), you'll see it is
very different from the mean of dat$out. Like Ista's previous answer,
I think in
Just in case someone else stumbles onto this thread and is facing a
similar issue: The quick solution for me turned out to be using Glm
and Predict in the rms package. Thanks go to Joshua and Ista for
helping me out with this issue. Double thanks go to Joshua for
suggesting I take a closer look
the lm object
newdata <- expand.grid(X1=c(-1,0,1),X2=c(-1,0,1))
#No need to rename newdata as it matches my lm object already
newdata$Y <- predict(lm.res.correct,newdata)
Notably, adjusting my formula to include as.vector() does not solve
the problem w
s that the names of the predictors in newdata do not
> match the names of the predictors in dat.
>
> names(newdata) <- names(dat)[1:2]
>newdata$Y <- predict(lm.obj,newdata)
>
> does work on my machine.
>
> Best,
> Ista
>
> On Fri, Jan 28, 2011 at 4:37 PM
I want to predict values from an existing lm (linear model, e.g.
lm.obj) result in R using a new set of predictor variables (e.g.
newdata). However, it seems that because my linear models was made by
calling scale() on the target predictor that predict exits with an
error, "Error in scale(xxA, cen
t; (Unicode), even
> though R is writing ASCII?
>
> Duncan Murdoch
>
> On 11/02/2010 1:44 PM, Russell Pierce wrote:
>>
>> Thank you for your input so far r-help denizens. Neither David nor
>> Peter were able to replicate my result. Has anybody other than me
>
quot;,res1.yes.lastcomma) #okay
write(file="write-2-lc.txt",res2.yes.lastcomma) #okay
cat(file="cat-1-lc.txt",res1.yes.lastcomma) #bad
cat(file="cat-2-lc.txt",res2.yes.lastcomma) #bad
Thanks,
Russell
On Thu, Feb 11, 2010 at 9:05 AM, William Dunlap wrote:
>
>
&
If the list would provide additional reports I'd appreciate it. I
replicated the effect this morning on another Windows XP machine...
R version 2.10.1 (2009-12-14)
i386-pc-mingw32
locale:
[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_Uni
(x) {return(paste(x,",",collapse="",sep=""))}
res <- lastcomma(taskout)
write(file="fail.txt",res)
cat(file="catfail.txt",res)
Any ideas as to how to avoid this problem would be appriciated as well
as suggestions as to whether this is expected beha
This evening I ran into the problem Chuck Clifton referred to in message 86
of Volume 71 Issue 9 of this list. That is, objects created by lmer change
after calling pvals.fnc on that lmer object when using lme4
version 0.999375-16 and 0.999375-28. This is somewhat troublesome. The bug
tracker on
s again for your time and effort,
---
Russell Pierce
Psychology Department
Graduate Student - Cognitive
(951) 827-2553
University of California, Riverside, 92521
>
>
> So you (Russell, not Petr) need to do some more work. You have the
> problem, and you can do things like printing the d
quot;,sep=""),height=600,width=800,bg="white") # Create the
image
dev.off() #Save the image
chi <- rbind(table(t1pvals <= .05),table(plainp <= .05)) #debugging
chisq.test(chi) #debugging
explore <- data.frame(t1=t1pvals,t2=t2pvals,picked=plainp) #debugging
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