Re: [R] plot via xyplot not being saved
Thank you Deepayan,
I understand the behavior of not printing out the results inside the
functions.
What I didn't know was that for xyplot() saving the plot actually
meant "save the result I see", which does not happen with plot(), in
which case my function test() works just fine if I replaced xyplot()
by plot().
Thank you very much,
b
On Jun 16, 2007, at 12:26 AM, [EMAIL PROTECTED] wrote:
> On 6/15/07, Benilton Carvalho <[EMAIL PROTECTED]> wrote:
>> So, if those statements are inside a function, I have to make my
>> function to have an 'echo' argument/functionality? eg.:
>>
>> ## begin test.R
>> test <- function(n){
>>y <- rnorm(n)
>>x <- rnorm(n)
>>z <- sample(letters[1:4], n, rep=T)
>>library(lattice)
>>bitmap("tst.png")
>>xyplot(y~x|z)
>>dev.off()
>> }
>>
>> test(100)
>> ## end test.R
>>
>> source("test.R", echo=T)
>>
>> also fails in this case...
>
> Yes. The following will produce some output (the values of x + y and x
> - y) if you type it out at the R prompt:
>
> x <- rnorm(10)
> y <- rnorm(10)
> x + y
> x - y
>
> If you put that in a file and source it, nothing will get printed,
> unless you have echo=TRUE. If you define
>
> test <- function(){
>x <- rnorm(10)
>y <- rnorm(10)
>x + y
>x - y
> }
>
> calling test() at the R prompt will only print x - y and not x + y,
> and so on.
>
> This is all standard R behaviour. If you want something to be printed
> irrespective of context, use print(), e.g.
>
> print(x + y)
>
> or
>
> print(xyplot(y~x|z))
>
> This is also mentioned in the R FAQ.
>
> -Deepayan
__
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Re: [R] plot via xyplot not being saved
On 6/15/07, Benilton Carvalho <[EMAIL PROTECTED]> wrote:
> So, if those statements are inside a function, I have to make my
> function to have an 'echo' argument/functionality? eg.:
>
> ## begin test.R
> test <- function(n){
>y <- rnorm(n)
>x <- rnorm(n)
>z <- sample(letters[1:4], n, rep=T)
>library(lattice)
>bitmap("tst.png")
>xyplot(y~x|z)
>dev.off()
> }
>
> test(100)
> ## end test.R
>
> source("test.R", echo=T)
>
> also fails in this case...
Yes. The following will produce some output (the values of x + y and x
- y) if you type it out at the R prompt:
x <- rnorm(10)
y <- rnorm(10)
x + y
x - y
If you put that in a file and source it, nothing will get printed,
unless you have echo=TRUE. If you define
test <- function(){
x <- rnorm(10)
y <- rnorm(10)
x + y
x - y
}
calling test() at the R prompt will only print x - y and not x + y, and so on.
This is all standard R behaviour. If you want something to be printed
irrespective of context, use print(), e.g.
print(x + y)
or
print(xyplot(y~x|z))
This is also mentioned in the R FAQ.
-Deepayan
__
R-help@stat.math.ethz.ch 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.
Re: [R] plot via xyplot not being saved
So, if those statements are inside a function, I have to make my
function to have an 'echo' argument/functionality? eg.:
## begin test.R
test <- function(n){
y <- rnorm(n)
x <- rnorm(n)
z <- sample(letters[1:4], n, rep=T)
library(lattice)
bitmap("tst.png")
xyplot(y~x|z)
dev.off()
}
test(100)
## end test.R
source("test.R", echo=T)
also fails in this case...
thanks a lot,
b
On Jun 15, 2007, at 8:53 PM, [EMAIL PROTECTED] wrote:
> On 6/15/07, Benilton Carvalho <[EMAIL PROTECTED]> wrote:
>> Hi everyone,
>>
>> it's been a while I've been trying to save a plot created via
>> lattice:::xyplot
>>
>> if I have a file tst.R with the following code:
>>
>> y <- rnorm(100)
>> x <- rnorm(100)
>> z <- sample(letters[1:4], 100, rep=T)
>> library(lattice)
>> bitmap("tst.png")
>> xyplot(y~x|z)
>> dev.off()
>>
>> and I source it, I get the tst.png file, which is a blank page.
>>
>> If I copy and paste instead, I get the correct plot.
>>
>> Any suggestion?
>
> Use
>
> source(..., echo = TRUE)
>
> -Deepayan
__
R-help@stat.math.ethz.ch 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.
Re: [R] plot via xyplot not being saved
On 6/15/07, Benilton Carvalho <[EMAIL PROTECTED]> wrote:
> Hi everyone,
>
> it's been a while I've been trying to save a plot created via
> lattice:::xyplot
>
> if I have a file tst.R with the following code:
>
> y <- rnorm(100)
> x <- rnorm(100)
> z <- sample(letters[1:4], 100, rep=T)
> library(lattice)
> bitmap("tst.png")
> xyplot(y~x|z)
> dev.off()
>
> and I source it, I get the tst.png file, which is a blank page.
>
> If I copy and paste instead, I get the correct plot.
>
> Any suggestion?
Use
source(..., echo = TRUE)
-Deepayan
__
R-help@stat.math.ethz.ch 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.
