> I will report results then,
OK, its better this way, but no so much.
Before: 99.79 (a) vs 0.21 (b)
Now: 99.77 (a) vs 0.23 (b)
But these results continue to be surprising for me.
Ok. Thanks you guys again, I will continue bothering you sometime.
Walter
___
> Does this help clarify the differences?
For sure! Thanks Jim. I will test with the solutions you gave me,
maybe the differences are not so big, I was just surprised about that.
I will report results then,
Thanks!
Walter
__
R-help@r-project.org mail
Well you do know that R is 'interpreted' and that C is 'compiled'. In
R you are calling functions to perform the operations. There is a
function for indexing ('['):
> get ("[")
.Primitive("[")
So your 'for' statement in R is interpreting the R code and calling
some functions to perform the oper
> code (C in this case). What exactly are you asking? You can alway
> 'time' (sys.time) a set of statements to see which is better (just
> make sure you execute them enough times to get reasonable readings --
> several seconds)
I was wondering where to seach for the code of these different optio
Guilty of what? What are you trying to compare? Now all the
approaches do get down to 'loops' being performed in the base level
code (C in this case). What exactly are you asking? You can alway
'time' (sys.time) a set of statements to see which is better (just
make sure you execute them enough
> Hope this is helpful,
Certainly! Thanks Dan and Jim!
Now, I wonder where I can dig in to realize why this is better. Is C
code for this function better than others? Is C guilty on this?
Maybe I am too newbie.
Thanks again, guys!
Walter
__
R-help@r
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Walter Alini
> Sent: Tuesday, October 23, 2007 1:18 PM
> To: r-help@r-project.org
> Subject: [R] Replace values on seq
>
> Hey guys, sorry for the inconvenience (this
Is this what you want to do?
> table <- seq(255, 0, by=-1)
> data <- c(1,8,34,100)
> data <- table[data + 1]
> data
[1] 254 247 221 155
On 10/23/07, Walter Alini <[EMAIL PROTECTED]> wrote:
> Hey guys, sorry for the inconvenience (this might be a hundred times
> answered question), but I have bee
Hey guys, sorry for the inconvenience (this might be a hundred times
answered question), but I have been searching a while and gave up
about the following:
I have the following, table and data:
table <- seq(255, 0, by=-1)
data <- c(1,8,...) <--- doesn't matter what's in here
Which would be th
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