# [R] Simple x,y Plot

arun smartpink111 at yahoo.com
Sun Jul 29 18:41:09 CEST 2012

```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)
# TRUE
dat2\$y<-as.numeric(as.character(dat2\$y))
is.numeric(dat2\$y)

# TRUE
#Now try plot
x1<-dat2[,1]
y1<-dat2[,2]
plot(x1,y1)
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:

colClasses=c("real","real"))
x<-daten[,1]
y<-daten[,2]
plot(x,y)

Greetings

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