[R] Leading plus in numeric fields

[arun]

HI,
You can also use "gsub"
set.seed(1)
dat1<-data.frame(OreTot=c(40,-7,41,35,7,15),GeoTot=c(TRUE,FALSE,TRUE,FALSE,TRUE,NA),OreCli=as.numeric(sample(1:25,6,replace=TRUE)))

dat1[,1]<-ifelse(dat1[,1]>0,gsub("(\\d+)","+\\1",dat1[,1]),dat1[,1])
dat1[,3]<-ifelse(dat1[,3]>0,gsub("(\\d+)","+\\1",dat1[,3]),dat1[,3])
 dat1
#  OreTot GeoTot OreCli
#1    +40   TRUE     +7
#2     -7  FALSE    +10
#3    +41   TRUE    +15
#4    +35  FALSE    +23
#5     +7   TRUE     +6
#6    +15     NA    +23




----- Original Message -----
From: Luca Meyer <lucam1968 at gmail.com>
To: R help <R-help at r-project.org>
Cc: 
Sent: Thursday, August 30, 2012 1:54 AM
Subject: [R] Leading plus in numeric fields

Hello R experts,

I have go this data frame:

'data.frame':    1 obs. of  20 variables:
$ Anno  : chr "PREVISIONI VS TARGET"
$ OreTot: num 41
$ GioTot: logi NA
$ OrGTot: logi NA
$ OreCli: num 99
$ GioCli: logi NA
$ OrGCli: logi NA
$ OreFor: num -27
$ GioFor: logi NA
$ OrGFor: logi NA
$ OreOrt: num -18
$ GioOrt: logi NA
$ OrGOrt: logi NA
$ OreSpo: num -6
$ GioSpo: logi NA
$ OrGSpo: logi NA
$ OreUff: num -7
$ GioUff: logi NA
$ OrGUff: logi NA
$ temp  : num 0

Is there any way I can format the numeric fields so that I get a leading "+" whenever the value is > 0? In the specific case I would need something like:

'data.frame':    1 obs. of  20 variables:
$ Anno  : chr "PREVISIONI VS TARGET"
$ OreTot: num +41
$ GioTot: logi NA
$ OrGTot: logi NA
$ OreCli: num +99
$ GioCli: logi NA
$ OrGCli: logi NA
$ OreFor: num -27
$ GioFor: logi NA
$ OrGFor: logi NA
$ OreOrt: num -18
$ GioOrt: logi NA
$ OrGOrt: logi NA
$ OreSpo: num -6
$ GioSpo: logi NA
$ OrGSpo: logi NA
$ OreUff: num -7
$ GioUff: logi NA
$ OrGUff: logi NA
$ temp  : num 0

Thank you in advance,

Luca

Mr. Luca Meyer
www.lucameyer.com
R version 2.15.1
Mac OS X 10.8







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