R help - Oct 2008 - How to set read.table variables to vectors?

The summary stats for the xin and yin variables below are correct.  However,
if I use plot(xin,yin), an exception is thrown saying that "object xin is
not found." 
 
Also, it is apparent that I can't successfully replace the x and y vectors
with values from xin and yin. 
 
The four plots on one panel are showing but the range of x and y is only
[0,1], and therefore, it seems like an integer vs. real issue.  Please help.
 
Thanks,
 
LP
 
 
 
> 
> mydata<-read.table("C:/refvecs_iters_5.csv", header=TRUE,
sep=",",
na.strings="NA", dec=".", strip.white=TRUE,
row.names=1)
> 
> x <- runif(1000)
> y <- runif(1000)
> 
> summary(mydata)
      iter         xin                yin          
 Min.   : 0   Min.   : 0.01792   Min.   : 0.03055  
 1st Qu.: 5   1st Qu.: 3.10674   1st Qu.: 3.13284  
 Median :10   Median : 5.46899   Median : 5.43446  
 Mean   :10   Mean   : 5.43360   Mean   : 5.39696  
 3rd Qu.:15   3rd Qu.: 7.70127   3rd Qu.: 7.70780  
 Max.   :20   Max.   :10.00000   Max.   :10.00000  
> 
> plot(xin,yin)
Error in plot(xin, yin) : object "xin" not
found
> 
> split.screen(c(2,2))
[1] 1 2 3 4
> 
> for (k in 0:3){
+ 
+   screen(k+1)  
+   cnt <- 0
+   #grp<- iter * 5
+   for (i in 1:5000 ) {
+     if (iter<-k*5) {
+      cnt = cnt + 1
+      x[cnt] <- myx[i]
+      y[cnt] <- myy[i]
+     }
+   }
+   #p = cbind(x=rnorm(300), y=rnorm(300))
+   #p = cbind(x, y)
+   #tt = delaunayn(p)
+   #trimesh(tt,p,axis=TRUE,box=TRUE)
+   plot(myx,myy)
+ }
> 
> 

	[[alternative HTML version deleted]]

'xin' is an element of a dataframe and you must explicity reference it
as such.  See the Intro to R.

plot(mydata$xin, mydata$yin)

On Wed, Oct 29, 2008 at 4:29 AM, Leif Peterson <peterson.leif at ieee.org>
wrote:
> The summary stats for the xin and yin variables below are correct. 
However,
> if I use plot(xin,yin), an exception is thrown saying that "object xin
is
> not found."
>
> Also, it is apparent that I can't successfully replace the x and y
vectors
> with values from xin and yin.
>
> The four plots on one panel are showing but the range of x and y is only
> [0,1], and therefore, it seems like an integer vs. real issue.  Please
help.
>
> Thanks,
>
> LP
>
>
>
>>
>> mydata<-read.table("C:/refvecs_iters_5.csv", header=TRUE,
sep=",",
> na.strings="NA", dec=".", strip.white=TRUE,
row.names=1)
>>
>> x <- runif(1000)
>> y <- runif(1000)
>>
>> summary(mydata)
>      iter         xin                yin
>  Min.   : 0   Min.   : 0.01792   Min.   : 0.03055
>  1st Qu.: 5   1st Qu.: 3.10674   1st Qu.: 3.13284
>  Median :10   Median : 5.46899   Median : 5.43446
>  Mean   :10   Mean   : 5.43360   Mean   : 5.39696
>  3rd Qu.:15   3rd Qu.: 7.70127   3rd Qu.: 7.70780
>  Max.   :20   Max.   :10.00000   Max.   :10.00000
>>
>> plot(xin,yin)
> Error in plot(xin, yin) : object "xin" not found
>>
>> split.screen(c(2,2))
> [1] 1 2 3 4
>>
>> for (k in 0:3){
> +
> +   screen(k+1)
> +   cnt <- 0
> +   #grp<- iter * 5
> +   for (i in 1:5000 ) {
> +     if (iter<-k*5) {
> +      cnt = cnt + 1
> +      x[cnt] <- myx[i]
> +      y[cnt] <- myy[i]
> +     }
> +   }
> +   #p = cbind(x=rnorm(300), y=rnorm(300))
> +   #p = cbind(x, y)
> +   #tt = delaunayn(p)
> +   #trimesh(tt,p,axis=TRUE,box=TRUE)
> +   plot(myx,myy)
> + }
>>
>>
>
>
>        [[alternative HTML version deleted]]
>
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>


-- 
Jim Holtman
Cincinnati, OH
+1 513 646 9390

What is the problem that you are trying to solve?