15:06 -0700
> From: ml-node+s789695n457488...@n4.nabble.com
> To: ritacarre...@hotmail.com
> Subject: Re: pasting a formula string with double quotes in it
>
> Hello,
>
> StellathePug wrote
> Hello everyone,
> I have tried several ways of doing this and searched th
Hello everyone,
I have tried several ways of doing this and searched the documentation and
help lists and I have been unable to find an answer or even whether it is
possible to do it. I am pasting together a formula and I need to insert
double quotes around the strings. Here's an example:
locati
Thanks Jean, that worked perfectly!
Try this
sapply(split(df, df$g), function(x) apply(x[, 1:2], 2, weighted.mean,
x$w))
Jean
StellathePug wrote on 09/21/2011 01:15:33 PM:
>
> I have a data frame, say df, which has 4 variables, one of which I would
> like to use as a grouping va
Dear R Users,
I have looked for a solution to the following problem and I have not been
able to find it on the archive, through Google or in the R documentation.
I have a data frame, say df, which has 4 variables, one of which I would
like to use as a grouping variable (g), another one that I woul
Thank you Dan and Ista!
Both of you are correct, I should have used NA rather than "NA" in my
example. So the correct code should be:
X <-as.data.frame(matrix(c(9, 6, 1, 3, 9, NA, NA,NA,NA,NA,
6, 4, 3,NA, NA, NA, 5, 4, 1, 3), ncol=2))
names(X)<-c("X1","X2")
X$X1[
Hello everyone,
I am trying to figure out a way of replacing missing observations in one of
the variables of a data frame by values of another variable. For example,
assume my data is X
X <-as.data.frame(matrix(c(9, 6, 1, 3, 9, "NA", "NA","NA","NA","NA",
6, 4, 3,"NA", "NA", "NA
> for (i in 1:(dat[(unique(dat$Subject)),)]
I don't think the order of the parentheses when you open the loop is
correct. You have four (s and only three )s. Plus the brackets (square
parentheses) seem so be out of order too.
If you use RStudio to write your code, when you highlight a parenthe
> sapply(fitSUR$eq, function(x) summary(x)$r.squared)
> You can abbreviate that to:
> sapply(summary(fitSUR)$eq, "[[", "r.squared")
This is fantastic! Thanks so much.
I had a hunch that it would be something related to the apply family but I
am still not very good at using it. Thank you immensel
Greetings R Users,
I have a system of equations for which I would like to output all the
R-squares. Assume there are four equations in my system, the only way I
found to output all the R-squares is by calling them out one by one as this:
summary(fitSUR$eq[[1]])$r.squared
summary(fitSUR$eq[[2]])$r.
Hello R Users!
I have a list called "tabs" that I would like to have the same structure as
my list "eqSystem." The two look like they have the same structure but they
are different because when I look at their attributes, class(eqSystem[[1]])
is "call" but class(tabs[[1]]) is "formula". I want to
I have taught myself R over the last few months and I learned quite a bit
from reading the PDFs that accompany each package, articles on the R Journal
(http://journal.r-project.org/) that cover similar problems to mine, and by
asking specific questions about code to this list. I also search online
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