[R] Simple x,y Plot

[Rui Barradas]

Hello,

Inline

Em 29-07-2012 17:41, arun escreveu:
> Hi,
>
> As there is not much information like str() or the data, it is difficult to comment.
>
> But, try this (considering your x and y are factors):
>
> x<-c("1","4","7","9","10","15")
>   y<-c("3","5","8","6","5","14")
>   dat1<-data.frame(x,y)
>   str(dat1)
> 'data.frame':    6 obs. of  2 variables:
>   $ x: Factor w/ 6 levels "1","10","15",..: 1 4 5 6 2 3
>   $ y: Factor w/ 5 levels "14","3","5","6",..: 2 3 5 4 3 1
>
> dat2<-dat1
>   dat2$x<-as.numeric(as.character(dat2$x) )
>   is.numeric(dat2$x)
> #[1] TRUE
>   dat2$y<-as.numeric(as.character(dat2$y))
>   is.numeric(dat2$y)
>
> #[1] TRUE
> #Now try plot
>   x1<-dat2[,1]
>   y1<-dat2[,2]
>   plot(x1,y1)

# Or, using the data.frame directly,
plot(y ~ x, data=dat2)

Hope this helps,

Rui Barradas
> Hope this helps.
>
> A.K.
>
> ----- Original Message -----
> From: sappy <robert.wittkopf at gmx.de>
> To: r-help at r-project.org
> Cc:
> Sent: Sunday, July 29, 2012 11:18 AM
> Subject: [R] Simple x,y Plot
>
> Dear Community,
>
> i have read in a table with two column from a *txt-File. What i get is a
> data-frame wit two column.
> After that i allocate this 2 column to x and y. Plotting this, i obtain a
> picture that looks like a bar plot (something like a grid).
> Is that because x and y is in factor-formatted? A conversion with
> "asnumeric" doesnt work. I get a vector with "NA".
>
> Here is my code:
>
> daten<-read.table("C:/Users/Robert/Desktop/regen.txt", header=FALSE,
> colClasses=c("real","real"))
> x<-daten[,1]
> y<-daten[,2]
> plot(x,y)
>
> Greetings
>
>
>
> --
> View this message in context: http://r.789695.n4.nabble.com/Simple-x-y-Plot-tp4638262.html
> Sent from the R help mailing list archive at Nabble.com.
>
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>
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.