Hi Bert,
No, this Is not home work related. Original data have 87352 rows. I used the
standard reshape function and got warning message. So I reformatted the wide
format to meet my research purpose.
mut2 <-mut[,c("Tumor_Sample_Barcode","mut.id", "Hugo_Symbol")]
mut2 <-mut2[order(mut2$Hugo_Symbol),]
mut3 <-mut2[!duplicated(mut2),]
mut4 <-reshape(mut3, idvar = "Hugo_Symbol", timevar = "Tumor_Sample_Barcode",
direction = "wide")
There were 50 or more warnings (use warnings() to see the first 50)
> View(mut4)
> warnings()
Warning messages:
1: In reshapeWide(data, idvar = idvar, timevar = timevar, ... :
multiple rows match for Tumor_Sample_Barcode=TCGA-A8-A09Z-01A-11W-A019-09:
first taken
2: In reshapeWide(data, idvar = idvar, timevar = timevar, ... :
From: Bert Gunter [mailto:bgunter.4...@gmail.com]
Sent: Thursday, January 7, 2021 10:52 AM
To: Yuan Chun Ding <ycd...@coh.org>
Cc: r-help@r-project.org
Subject: Re: [R] non-standard reshape from long to wide
Is this homework? There is a no-homework policy on this list.
If not, note that you are usually asked to show what you tried and the error
messages you received.
Bert Gunter
"The trouble with having an open mind is that people keep coming along and
sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
On Thu, Jan 7, 2021 at 10:40 AM Yuan Chun Ding
<ycd...@coh.org<mailto:ycd...@coh.org>> wrote:
Dear R user,
I want to reshape a long data frame to wide format, I made the following
example files. Can you help me?
Thank you,
Yuan Chun Ding
sample <-c("xr" , "xr" , "fh" , "fh" , "fh" , "uy" , "uy" , "uy" , "uy");
marker <-c("x" , "y" , "g" , "x" , "k" , "y" , "x" , "u" , "j");
df.long <-data.frame(sample, marker);
xr <-c(1,1,NA,NA,NA,NA);
fh <-c(1,NA,1,1,NA,NA);
uy <-c(1,1,NA,NA,1,1);
df.wide <- t(data.frame(xr,fh,uy));
colnames(df.wide)<-c("x","y","g","k", "u","j");
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