R help - Mar 2004 - selecting certain rows from a data.frame

Hi,

First of all - thank you for the answers regarding shared library. If i 
am attempting to translate the library from Linux to Windows - i 
think i will need some heavy baby-sitting ;-))) It is way out of my 
league - for now.

Meanwhile i have this new question: suppose i have a data.frame 
with x and y columns and 10 rows, 1 to 10. I also have a variable m 
(or an array if you like) with 5 numbers that represent some of the 
row order numbers in my data.frame. Let's make m(1, 4, 5, 8, 10). 
How can i select from my data.frame the rows number 1, 4, 5, 8, 
and 10?

Thank you in advance for any help,

Monica

On 3/5/04 6:17 AM, "Monica Palaseanu-Lovejoy"
<monica.palaseanu-lovejoy at stud.man.ac.uk> wrote:
> Meanwhile i have this new question: suppose i have a data.frame
> with x and y columns and 10 rows, 1 to 10. I also have a variable m
> (or an array if you like) with 5 numbers that represent some of the
> row order numbers in my data.frame. Let's make m(1, 4, 5, 8, 10).
> How can i select from my data.frame the rows number 1, 4, 5, 8,
> and 10?
If df is the name of your dataframe:

df[c(1,4,5,8,10),]

Will select only those rows.

I would highly recommend looking at the R manual, An Introduction to R.  It
can be obtained from the CRAN homepage (http://cran.us.r-project.org/).
There is a link on the left side called Manual.

Sean