Re: [R] Sort help

From: Jorge Ivan Velez <jorgeivanvelez_at_gmail.com>
Date: Wed, 05 Nov 2008 14:23:05 -0500

Hi Ramya,
You're almost there. Just specify that you want to order all the data set based-on the third column. Here is an example:

# Data
information=data.frame(

                geneset=letters[1:7],
                chromosome=1,
                hit=c(51,24,30,17,35,55,61))

# New data
information[order(information[,3],decreasing=TRUE),]

HTH, Jorge

On Wed, Nov 5, 2008 at 2:02 PM, Rajasekaramya <ramya.victory_at_gmail.com>wrote:

>
> Geneset_name #Chromosome #Hit_in_Biomart
> original_geneset_len Missing.genes
> [1,] "AGUIRRE_PANCREAS_CHR12" "1" "51"
> "59" "8"
> [3,] "AGUIRRE_PANCREAS_CHR9" "1" "24"
> "24" "0"
> [4,] "AGUIRRE_PANCREAS_CHR1" "1" "30"
> "31" "1"
> [5,] "AGUIRRE_PANCREAS_CHR18" "1" "17"
> "17" "0"
> [6,] "AGUIRRE_PANCREAS_CHR7" "1" "35"
> "48" "13"
> [7,] "AGUIRRE_PANCREAS_CHR8" "1" "55"
> "61" "6"
>
> Above is a dataframe information.
>
> i need to sort the entire dataframe based on the 3rd colum. in decending
> order.
>
> I tried using order
>
> information[order(information[,3])] but it gives me only the ordered first
> coulmn that too i am not sure that it really works.
>
> Kindly let me know with any suggestions.
>
> Regards
> Ramya
>
>
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