On Sep 12, 2010, at 10:45 AM, Natasha Asar wrote:
Greeting R helpers J
I am not familiar with R but I have to use it to analyze data set
that I have
(30,000 20,000)
I want to change the structure of the dataset and I am wondering how
that might
be possible in R
A main data looks like this: some entities are empty
Age No. Age No. Age No.
Center1 5 2 8 7
Center2 10 7 20
9 4 10
But what I want the data to look like is
Age 1 2 3
4 5 6 7 8
9 10 … 20
Center1
2 7
Center2
10
7 9
It should read the entities one by one
when j is in age column take its value and consider it as the column
number for
new matrix
then go to next entity (j No. columns) and put that entity under the
columns
number identified in previous step.
In other word
it should get the each element in No. columns (one by one) and place
them in a
new matrix under the column number which are equal to entity of age
columns of
first matrix
i have tired ncol, and cbind and things like that but I guess im on
the wrong
path because it is not working. I am reading this fine with
read.csv and
writing back the same way.
do you know how I can make this work?? Is it even possible to do
something like
this?
Thank you in advance
Natasha
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