Use force() (or anything that evaluates mycondition, e.g. your print):
function(mycondition) {
force(mycondition)
function(i) mycondition * i
}
within the lapply() loop.
Not a bug, but does surprise people. It is lazy evaluation.
D.
On 2/23/15 12:57 PM, Daniel Kaschek wrote:
> Hi everyb
On 23/02/2015 3:57 PM, Daniel Kaschek wrote:
> Hi everybody,
>
> with the following code I generate a list of functions. Each function
> reflects a "condition". When I evaluate this list of functions by
> another lapply/sapply, I get an unexpected result: all values coincide.
> However, when I unc
On Mon, Feb 23, 2015 at 12:57 PM, Daniel Kaschek
wrote:
> Is this a bug or a feature?
I think it is a bug. If we use substitute to inspect the promise, it
appears the index number is always equal to its last value:
vec <- c("foo", "bar", "baz")
test <- lapply(vec, function(x){
function(){x}
})
Greetings!
I thought it was a lazy evaluation thing. I added "force" around
mycondition and everything worked as expected.
Cheers!
On Mon Feb 23 2015 at 1:47:20 PM Jeroen Ooms wrote:
> On Mon, Feb 23, 2015 at 12:57 PM, Daniel Kaschek
> wrote:
> > Is this a bug or a feature?
>
> I think it is
Hi everybody,
with the following code I generate a list of functions. Each function
reflects a "condition". When I evaluate this list of functions by
another lapply/sapply, I get an unexpected result: all values coincide.
However, when I uncomment the print(), it works as expected. Is this a
bug o
