I figured it out. I understand that R isn't really meant to do this.
Essentially, I want to have an object per read csv file which contains
columns. But I'm dealing with hundreds of files in a folder and I
wanted to automate the importing into R and process stuff without
entering the shell and usin
Got that work! Thanks.
However, now I need to know how to dump tag values into an object, e.g.,
TotLogDist <- c(object1$LogDist,object2$LogDist,object3$LogDist ...)
[for how many ever objects you provided]
Is there a way to loop that?
TotLogDist <- NULL
for (i in c(1:10))
TotLogDist <- c(TotLog
essentially the same,
object1 = object2 = object3 = data.frame(Distance = 1:10)
foo = function(o){
within(get(o), LogDist <- log10(Distance))
}
my.objects = paste("object", 1:3,sep="")
lapply(my.objects, foo)
It is however advisable to group the initial objects
I would first put the objects in a 'list' since it is easier to work
with and then use 'lapply':
> obj1 <- obj2 <- obj3 <- data.frame(Distance=1:10)
> # create a list - earier to work with
> list.obj <- list(obj1, obj2, obj3)
>
> list.obj <- lapply(list.obj, function(x){
+ x$LogDist <- log(x$D
Hi all,
Suppose I want to set the values in a column to the log of the values
of another column like so:
object$LogDist <- log10(object$Distance)
How do I loop through the objects if I have object1, object2, etc to
perform this function?
object1$LogDist <- log10(object1$Distance)
object2$LogDis
On Jul 28, 2009, at 5:39 PM, Vivek Ayer wrote:
That just creates one object and doesn't contain any $ subobjects in
it. Here's what I did to figure it out (It's complicated):
for(i in c(1:13))
assign
(paste
("bc",i,sep=""),read.csv(paste(i,".csv",sep=""),sep="",header=TRUE))
in shorthand: for
On 29/07/2009, at 9:39 AM, Vivek Ayer wrote:
That just creates one object and doesn't contain any $ subobjects in
it. Here's what I did to figure it out (It's complicated):
for(i in c(1:13))
assign(paste("bc",i,sep=""),read.csv(paste
(i,".csv",sep=""),sep="",header=TRUE))
in shorthand: for
That just creates one object and doesn't contain any $ subobjects in
it. Here's what I did to figure it out (It's complicated):
for(i in c(1:13))
assign(paste("bc",i,sep=""),read.csv(paste(i,".csv",sep=""),sep="",header=TRUE))
in shorthand: for {assign(paste,read(paste))}
This creates individual
Hi,
On Jul 28, 2009, at 4:54 PM, Vivek Ayer wrote:
Hi all,
I have 13 csv files and I want to assign each csv file to one
object, i.e.,
bc1 <- read.csv("1.csv,header=TRUE,sep="")
bc2 <- read.csv("2.csv,header=TRUE,sep="")
bc3 ...
So I want to create 13 objects. How could I automate this wi
Hi all,
I have 13 csv files and I want to assign each csv file to one object, i.e.,
bc1 <- read.csv("1.csv,header=TRUE,sep="")
bc2 <- read.csv("2.csv,header=TRUE,sep="")
bc3 ...
So I want to create 13 objects. How could I automate this with a for loop?
for (i in c(1:13)) ...
Any ideas?
Thanks
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