[R] ggplot2 boxplot help

[Rui Barradas]

Hello,

Wasn't it supposed to be a boxplot?
Anyway, the main problem seems to be a df format conversion prior to 
plotting.

dat2 <- data.frame(sample=rep(NA, 2*nrow(dat)))
dat2$sample <- with(dat1, c(as.character(sample_1), as.character(sample_2)))
dat2$value <- with(dat1, c(value_1, value_2))
dat2

qplot(sample, value, data=dat2, geom="boxplot")

Hope this helps,

Rui Barradas

Em 05-08-2012 16:10, John Kane escreveu:
> Please use dput() to supply sample data.
>
> I think this does something like what you want.
> ####===================================================###
> ibrary(ggplot2)
> library(reshape2)
>
>   dat1<-read.table(text="
> sample_1 sample_2     value_1  value_2
> N                  C               1.9268400 36.77590
> N                  C               0.1817890  5.58835
> N                  C                0.2309000 7.54035
> N                 C                  0.0294559 1.50886
> N                  C                 0.4678610 14.75560
>   N                 C                 10.7258000 92.13150",
>         sep="",header=TRUE)
>
>
> bb  <-  melt(dat1)
>
> p  <-  ggplot(bb  , aes(variable, value, fill =as.factor(value )  )) +
>                        geom_bar(stat= "identity", position = "dodge")  +
>                         scale_fill_discrete(name = "Fancy Title") +
>                        scale_x_discrete(breaks=c("value_1", "value_2"), labels=c("Sample 1", "Sample 2"))
> p
> ##========================================================##
>
> John Kane
> Kingston ON Canada
>
>
>> -----Original Message-----
>> From: alexpadron1082 at gmail.com
>> Sent: Sat, 4 Aug 2012 14:21:49 -0700 (PDT)
>> To: r-help at r-project.org
>> Subject: [R] ggplot2 boxplot help
>>
>> Hello,
>>
>> I have a data set that looks like this:
>>
>>     name      G-ID     test_id     g-id g
>> 1 00077464 C_068131 C_068131 OC_068131    -
>> 2 00051728 C_044461 C_044461 OC_044461    -
>> 3 00058738 C_050343 C_050343 OC_050343    -
>> 4 00059239 C_050649 C_050649 OC_050649    -
>> 5 00001761 C_000909 C_000909 OC_000909    -
>> 6 00005119 C_002752 C_002752 OC_002752    -
>>       locs                            sample_1 sample_2     value_1
>> value_2
>> 1 37316550-37317847   N                  C               1.9268400
>> 36.77590
>> 2 27058468-27060176   N                  C               0.1817890
>> 5.58835
>> 3 4761739-4763268        N                  C                0.2309000
>> 7.54035
>> 4  14565311-14567393   N                 C                  0.0294559
>> 1.50886
>> 5  38670994-38675694   N                  C                 0.4678610
>> 14.75560
>> 6   48362804-48380794   N                 C                 10.7258000
>> 92.13150
>>
>>
>>
>> In this dataset, sample_1 corresponds to value_1 and sample_2 corresponds
>> to
>> value_2. How can I graph this in ggplot2's boxplot function? I am not
>> quite
>> sure how to tell R that sample_1 and sample_2 columns correspond to
>> value_1
>> and value_2 using ggplot2.
>>
>> Can anyone shed some light on this?
>>
>> Thanks.
>>
>>
>>
>> --
>> View this message in context:
>> http://r.789695.n4.nabble.com/ggplot2-boxplot-help-tp4639187.html
>> Sent from the R help mailing list archive at Nabble.com.
>>
>> ______________________________________________
>> R-help at r-project.org mailing list
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>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
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