I think these examples will show what one can and cannot do with the
invisible function.
> f2 <- function(x,y) return(c(x, invisible(x^y)) )
> f2(2,2)
[1] 2 4 #so that not the right way to keep tree hidden
> f2 <- function(x,y) invisible(c(print(x),(x^y)) )
> f2(2,2)
[1] 2 # success x^y
On Sep 20, 2009, at 10:59 AM, manta wrote:
Good afternoon,
I know it is a simple question but I cannot figure out how to solve
this
issue.
I have a function that calculate two objects. I would like to choose
everytime about the tree object, with default to not show it.
I cannot understand
Good afternoon,
I know it is a simple question but I cannot figure out how to solve this
issue.
I have a function that calculate two objects. I would like to choose
everytime about the tree object, with default to not show it.
OP<-function(S=100,X,sigma,mu=0,r=0,time=1,n)
{
value=(S)
tmp.out.sort <- tmp.out[, order(names(tmp.out))]
tmp.out.sort <- tmp.out[, order(names(tmp.out)), drop=FALSE]
>From your description of misbehavior with a single column,
I think the drop=FALSE argument will provide the protection you need.
Then you will not need the if clause.
See
?`[.data.fram
Sedges Vascular
> Subject: Re: [R] function output with for loop and if statement
> From: gavin.simp...@ucl.ac.uk
> To: awell...@hotmail.com
> CC: r-help@r-project.org
> Date: Thu, 23 Apr 2009 09:18:17 +0100
>
> On Wed, 2009-04-22 at 15:51 -0400, aaron wells wrote:
>>
: markle...@verizon.net
> To: awell...@hotmail.com
> Subject: Re: [R] function output with for loop and if statement
>
> Hi Aaron: i just looked quickly because I have to go but try wrapping braces
> around the last if else like
> below and see if that helps. if you have multiple st
On Wed, 2009-04-22 at 15:51 -0400, aaron wells wrote:
> Hello all, turns out i'm having a bad R week. I am at my wits end
> with a function that I am trying to write. When I run the lines of
> code outside of a function, I get the desired output. When I wrap the
> lines of code into a function i
2009 15:24:24 -0500
From: markle...@verizon.net
To: awell...@hotmail.com
Subject: Re: [R] function output with for loop and if statement
Hi Aaron: i just looked quickly because I have to go but try wrapping braces
around the last if else like
below and see if that helps. if you have multiple
Hello all, turns out i'm having a bad R week. I am at my wits end with a
function that I am trying to write. When I run the lines of code outside of a
function, I get the desired output. When I wrap the lines of code into a
function it doesn't work as expected. Not sure what is going on her
On 03-Dec-08 13:41:53, emj83 wrote:
> is there anyway for some parts of the function output to not be
> returned, even if the output has been used to calculate a further
> part of the function? i have tried invisible() to no avail.
>
> Thanks Emma
It's not clear what you mean by "some parts of th
is there anyway for some parts of the function output to not be returned,
even if the output has been used to calculate a further part of the
function? i have tried invisible() to no avail.
Thanks Emma
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