Displaying 4 results from an estimated 4 matches for "kushantha".
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kushana
2009 May 06
4
subset data
Dear all,
> data <- data.frame(id=seq(1:10),x=runif(10))
> data
id x
1 1 0.3604464
2 2 0.4813987
3 3 0.0160058
4 4 0.7165909
5 5 0.6092248
6 6 0.2413049
7 7 0.7981568
8 8 0.6093960
9 9 0.2887064
10 10 0.3485780
> selected.id <- sample(data$id,3,replace=F)
> selected.id
[1] 9 7 1
I want to select data with corresponding selected.id, namely
>
2009 May 15
2
transposing/rotating XY in a 3D array
Dear list,
We have a number of files containing similarly structured data:
file1:
A B C
1 2 3
4 5 6
file2:
A B C
7 8 9
10 11 12
... etc
My part of R receives all these data as an array: 1,2,3... 12 together
with info about dimensions (row,col,fileN) . (
Converting the data into 3D cannot simply done by:
array(x, c(2,3,2))
because breaks the structure (e.g. 1,3,5 is type mismatch)
2009 May 18
2
Split data frame based on Class
Each row of my data frame is assigned to a class (eg country). Can you
suggest how I break apart the data frame so that I create new data
frames for each class
eg
If Class = "US" put in new dataframe dataUS
Thanks in advance for your help
Chris
2009 Apr 22
2
Exporting objects plotted with plot3d() - rgl package
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