Displaying 20 results from an estimated 40000 matches similar to: "Using character vectors to call data in the "cbind" command"
2009 Sep 01
2
cbind objects using character vectors
Dear list,
I have a character vector such vec.names<- c("a", "b")
It happens that I have also two R objects called "a" and "b" that I would
like to merge. Is it possible to
do something like cbind(vec.names[1], vec.names[2]) ending up with the same
result as cbind(a,b)
Bellow is a reproducible example of what I need to to:
dat<-
2012 May 23
3
applying cbind (or any function) across all components in a list
#If I have two lists as follows
a1<- array(1:6, dim=c(2,3))
a2<- array(7:12, dim=c(2,3))
l1<- list(a1,a2)
a3<- array(1:4, dim=c(2,2))
a4<- array(5:8, dim=c(2,2))
l2<- list(a3,a4)
#how can I create a new list with the mean across all arrays within the
list, so all components are included? As an example for [[1]];
cbind((l1[[1]][,1]+l2[[1]][,1])/2,
2008 Mar 13
2
How to cbind or rbind different lengths vectors/arrays without repeating the elements of the shorter vectors/arrays ?
Hi,
How to cbind or rbind different lengths vectors/arrays without repeating the
elements of the shorter vectors/arrays ?
> cbind(1:2, 1:10)
[,1] [,2]
[1,] 1 1
[2,] 2 2
[3,] 1 3
[4,] 2 4
[5,] 1 5
[6,] 2 6
[7,] 1 7
[8,] 2 8
[9,] 1 9
[10,] 2 10
[[alternative HTML version deleted]]
2010 Sep 07
2
repeated measurements ANOVA
Dear list,
i am setting up a GLM for a repeated measurement ANOVA using the lm and
ANOVA function. my design contains four factors with 5, 5, 2 and 2 (=
14) levels, respectively. the data are stored in a data.frame with six
columns, one for the data themselves and the remainings for the factors
where strings indicate the factor levels in each row. now i would like
to restructure this
2010 Jun 09
2
cbind with vectors of different lengths?
Hello R help
I have a dataframe, with 71 samples (rows) and 30 variables. I got linear models for some of the variables,? and I want to join fitted and residuals of these models to the data frame. Sometimes, these vectors have the same length of the dependant variable, but in a few cases, NA values can be found on my data, and therefore, both fitted and residuals have a few rows less than the
2004 Jul 08
2
Getting elements of a matrix by a vector of column indice s
See if the following helps:
> m <- outer(letters[1:5], 1:4, paste, sep="")
> m
[,1] [,2] [,3] [,4]
[1,] "a1" "a2" "a3" "a4"
[2,] "b1" "b2" "b3" "b4"
[3,] "c1" "c2" "c3" "c4"
[4,] "d1" "d2" "d3" "d4"
[5,]
2009 Sep 08
1
cbind formula definition
Hi there,
I have the following problem:
I have a package called "polLCA" which has the following syntax:
poLCA(formula, data)
and needs the following formula definition:
formula <- cbind(V1,V2,V3,...)
So far so good.
What I tried now was the following:
#Get "data" with the "read.table" fuction
data <- read.table("d:/ .....)
#Select cols to use in the
2008 Dec 22
2
... (dotMethods) and cbind/rbind: how to give the signature?
Dear List,
I'm struggling with the signature writing cbind/rbind functions for a S4
class.
First of all, I'm very happy that it is now possible to dispatch on ...
I follow the example for "paste" in ?dotMethods, which works as far as this:
### start example
setClass ("cbtest",
representation = representation (data = "data.frame"),
2011 Jul 14
2
cbind in aggregate formula - based on an existing object (vector)
Hello!
I am aggregating using a formula in aggregate - of the type:
aggregate(cbind(var1,var2,var3)~factor1+factor2,sum,data=mydata)
However, I actually have an object (vector of my variables to be aggregated):
myvars<-c("var1","var2","var3")
I'd like my aggregate formula (its "cbind" part) to be able to use my
"myvars" object. Is it
2012 Jul 10
1
cbind and cbind.data.frame
## Hi, I'm having trouble understanding how the cbind function decides what
method to apply to its arguments. Easy cut and paste code below.
>
>
>
> ## create two columns
> c1 <- c("A","A","B","B")
> c2 <- 1:4
>
> ## cbind outputs a matrix with elements that are characters, seems
reasonable
> out <-
2009 Sep 22
3
converting a character vector to a function's input
Hi all, I have been trying to solve this problem and have had no luck so far.
I have numeric vectors VAR1, VAR2, and VAR3 which I am trying to cbind. I also have a character vector "VAR1,VAR2,VAR3". How do I manipulate this character vector such that I can input a transformed version of the character vector into cbind and have it recognize that I'm trying to refer to my numeric
2009 Mar 13
2
Taking diff of character vectors
Hello, everybody
Say I have
nm1 <- c(rep(1,10), rep(0,10))
then I can do:
diff(nm1)
to see where I have shift in value
but what if I have
nm2 <- c(rep("SPZ8", 10), rep("SPX9", 10))
how can I produce the same ouput as diff(nm1) does, that is zeros
everywhere except for one place where SPZ8 changes to SPX9 (there
should be 1 there)?
What if I have a matrix of characters
2008 Dec 03
1
reduce limit number of arguments in methods:::cbind
Dear all,
As far as I understand, the number of arguments in methods:::cbind is
limited by the "self recursive" construction of the function
which generates nested loops.
A workaround could be to use the internal cbind function on blocks of
non S4 objects. The limitation would then be reduced to the number of
consecutive S4 objects.
##### R code #####
dfr <- data.frame(matrix(0,
2003 Jul 29
2
cbind/rbind inconsistency with NULL parameter (PR#3585)
R-Version: 1.7.1 (2003-06-16)
OS: Debian/GNU Linux
cbind and rbind handle NULL parameters inconsistently.
Consider:
> cbind()
NULL
> cbind(NULL)
NULL
And:
> cbind(diag(x = 1, 1, 1))
[,1]
[1,] 1
> cbind(NULL, diag(x = 1, 1, 1))
[,1]
[1,] 1
These seem to indicate that NULL parameters will be ignored in any call to
cbind and rbind. However:
>
2013 Jul 23
1
cbind error with check.names
Here is an example where?cbind?fails with an error when?check.names=TRUE?is set.
data(airquality)
airQualityBind =cbind(airquality,airquality,check.names =TRUE)
?I understand that?cbind?is a call to?data.frame?and the following works:
airQualityBind =data.frame(airquality,airquality,check.names =TRUE)
but I would like to understand why?cbind?throws an error.
I asked this question on SO here:
2011 Nov 10
2
library(qpcR) cbind.na
I want to use function cbind.na at library(qpcR)
I install package qpcR and I can use functions such
m1 <- pcrfit(reps, 1, 2, l5)
> AICc(m1)
[1] -102.5843
but when i try cbind.na(1, 1:7) i take message
Error: could not find function "cbind.na"
Thanks
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2006 Jun 06
2
Strange behaviour of cbind
Hi,
Is this intended behaviour of cbind?
> a<-c(0,1,2,3)
> a
[1] 0 1 2 3
> a<-as.ordered(a)
> a
[1] 0 1 2 3
Levels: 0 < 1 < 2 < 3
> a<-a[a!=0] #remove the zero from a
> a
[1] 1 2 3
Levels: 0 < 1 < 2 < 3
> cbind(a)
a
[1,] 2
[2,] 3
[3,] 4
#cbind adds +1 to each element
> a<-as.ordered(as.vector(a))
> a
[1] 1 2 3
Levels: 1 < 2 <
2010 Feb 09
1
cbind(deparse.level=2,...) problems
Should the deparse.level=2 argument to cbind
and rbind be abandoned? It is minimally documented,
not used in any CRAN package, and causes some problems.
E.g.,
(a) If a matrix input has row names but not column names
cbind(deparse.level=2,...) stops.
>
m<-matrix(11:14,nrow=2,ncol=2,dimnames=list(Row=c("R1","R2"),Col=charact
er()))
> cbind(m, 101:102,
2007 Oct 31
2
cbind()
Hello,
I would like to use the cbind() function to construct a matrix used in the
middle of a function as following
for (i in 1:1000) {
b[i] <- function(cbind(a[[1]][[i]],
a[[2]][[i]],a[[3]][[i]],...a[[67]][[i]]))
}
Is there an easy way of achieving this rather than "cbind" every column?
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2010 Jul 12
2
cbind in for loops
I have 30 files in the current directories, i would like to perform the
cbind(fil1,file2,file3,file4....file30)
how could i do this in a for loop:
such as:
file2 <- list.files(pattern=".out3$")
for (j in file2) {
cbind(j).......how to implement cbind here
}
Thanks.
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