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for loop and if problem

Sake 
Hi,

I'm heaving difficulties with a dataset containing gene names and positions
of those genes.
Not such a big problem, but each gene has multiple exons so it's hard to say
where de gene starts and where it ends. I want the starting and ending
position of each gene in my dataset.
Attached is the dataset:
http://www.nabble.com/file/p21312449/genlistchrompos.csv genlistchrompos.csv 
Column 'B' is the gene name, 'G' is the starting position and 'H' is the
stop position.
You can load the dataset by using: data<-read.csv("genlistchrompos.csv",
sep=";")
I hope someone can help me, it's giving me headaches for a week now:-((.

Thanks!

Thread (9 messages)

Sake for loop and if problem Jan 6 Richard Cotton for loop and if problem Jan 6 Philipp Pagel for loop and if problem Jan 6 Charles C. Berry for loop and if problem Jan 6 Sake for loop and if problem Jan 12 jim holtman for loop and if problem Jan 12 David Winsemius for loop and if problem Jan 12 Brian Ripley for loop and if problem Jan 12 Sake for loop and if problem Jan 13