On May 13, 2014, at 7:22 PM, yuanzhi wrote:
> Thank you for your reply.
>
> Yes, there is a problem according to you suggestion.
> What if the value are not numerical, e.g. I want to use the variable to
> store the results of linear regression.
> can I use
> myvec <- vector( "numeric", 10 )
If
Yes, it works, thanks for your help.
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Hi,
Try:
ls <- vector("list",3)
for (i in 1:3)
{
ls[[i]] <- summary(lm(y[,i]~x[,i]))
}
names(ls) <- paste0("lm",1:3)
A.K.
On Wednesday, May 14, 2014 10:45 AM, yuanzhi wrote:
Hi, I know all what you said, but it seems that you don't understand my
problem. I am sorry about my poor englis
Hi,
I guess you can also use ?assign with ?get
#For e.g.
set.seed(39)
mat1 <- matrix(sample(1:10, 10*5, replace=TRUE), ncol=10)
vec1 <- paste0("t",1:ncol(mat1))
for(i in 1:ncol(mat1)){
assign(vec1[i], sum(mat1[,i]))
}
t1
#[1] 15
t2
#[1] 28
sapply(vec1,get)
# t1 t2 t3 t4 t5 t6 t7 t8 t9
I am really sorry, I misunderstand your meanings. Your suggestions are
useful, and it works!
ls<-vector("list",3)
for(i in 1:3)
{
ls[[i]]<-summary(lm(y[,i]~x[,i]))
}
Thanks for your help very much and sorry for my mistake.
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Hi, I know all what you said, but it seems that you don't understand my
problem. I am sorry about my poor english level. I know that we can use a
list to store complicated objects. e.g.
x<-cbind(rnorm(10),rnorm(10),rnorm(10))
y<-cbind(rnorm(10),rnorm(10),rnorm(10))
lm1<-summary(lm(y[,1]~x[,1]))
lm2
Please do the reading I recommended before posting again. My example was
numeric because your example was numeric. For more complicated data, a list is
a type of vector that can hold such objects, and you would know this if you had
read the intro document.
---
Thank you for your reply.
Yes, there is a problem according to you suggestion.
What if the value are not numerical, e.g. I want to use the variable to
store the results of linear regression.
can I use
myvec <- vector( "numeric", 10 )
for ( i in 1:10 ) {
myvec[ i ] <- summary(lm(y~x)) # y and x a
What is wrong with
myvec <- vector( "numeric", 10 )
for ( i in 1:10 ) {
myvec[ i ] <- i
}
?
If you are using assign, IMHO you are probably doing whatever you are doing
wrong.
If you want named elements, give the vector names:
names( myvec ) <- paste0( "t", 1:10 )
and you can refer to them
Hi, everyone
I want to create a series of variables (e.g. t1, t2..., t10) which could
be used in loops. My idea is to use function "assign"
for (i in 1:10)
{
assign(paste("t",i,sep=""), FUN) # allocate the value from FUN to
variable ti
}
But when I create a vector containing the names of
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