problem with effects : 'subscript out of bounds'
Dear Nicole, Sorry, I didn't notice the earlier messages in this thread. Please see below.
-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
project.org] On Behalf Of Nicole Marie Ford
Sent: March-10-12 1:20 AM
To: r-help
Subject: Re: [R] problem with effects : 'subscript out of bounds'
if that is not specific (or not general) enough:
newDV <- dat$DV ## newDV is my DV & it is continuous.
newDV <- as.numeric(newDV)-5
str(newDV)
(i had to do a great deal of coding here so i am snipping down to the
end)
tmp[which(dat$v1 == "stuff" & dat$v2 == "more stuff")] <- "lots of
stuff"
tmp <- factor(tmp, levels=c("la", "la la", "fa la la"))
dat$v3 <- tmp
newIV <- as.factor(dat$v3) #### newIV is my IV, a factor as you can
see.
n.var4 <- dat$v4 ## control
n.var5 <- dat$v5 ##control (there are others but they were coded the
same)
n.mod1 <- lm(newDV ~ newIV + v4 + v5 + v6 + v7 + v8 + v9, data=dat)
### linear model. all of these variables already are specific to the
dataset which i called 'norway' so there is no need to specify in the
model.
summary(n.mod1)
plot(effect("newIV", n.mod1), multiline=T)
Error in plot(effect("nor.trust", n.mod1), multiline = T) :
error in evaluating the argument 'x' in selecting a method for
function 'plot': Error in apply(mod.matrix[, components], 1, prod) :
subscript out of bounds
This seems very odd: The command given is
plot(effect("newIV", n.mod1), multiline=T)
but the error message is apparently for
plot(effect("nor.trust", n.mod1), multiline = T)
and nor.trust isn't a variable in the model. What command did you execute?
Although it's not relevant to the error, there's no point in setting
multiline=TRUE for a model without interactions.
Best,
John
--------------------------------
John Fox
Senator William McMaster
Professor of Social Statistics
Department of Sociology
McMaster University
Hamilton, Ontario, Canada
http://socserv.mcmaster.ca/jfox
~~this ran perfectly on my previous dataset so i am unsure of the issue. thanks in advance.
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