Displaying 20 results from an estimated 4000 matches similar to: "Wired result when I convert from Character to Numeric"
2017 Aug 02
4
Extracting numeric part from a string
Hi again,
I am struggling to extract the number part from below string :
"\"cm_ffm\":\"563.77\""
Basically, I need to extract 563.77 from above. The underlying number
can be a whole number, and there could be comma separator as well.
So far I tried below :
> library(stringr)
> str_extract("\"cm_ffm\":\"563.77\"",
2011 Feb 13
6
From numeric vector to string vector
Hi there, I have a numeric vector let say:
Vect <- c(12.234, 234.5675, 1.5)
Now I want a string vector like:
changedVec <- c("012.234", "234.568", "001.500")
Would be grateful if somebody help me how can I do that.
Thanks and regards,
[[alternative HTML version deleted]]
2013 Mar 23
4
Converting a character vector to numeric
Hello again,
Let say I have following vector:
Vec <- c("0.0365780769", "(1.09738648244378)", "(0.812507787221523)",
"0.5778069963", "(0.452456601362355)", "-1.8900812605", "-1.8716093762",
"0.0055217041", "-0.4769192333", "-2.4133018880")
Now I want to convert this vector to numeric vector. I
2017 Aug 03
2
Extracting numeric part from a string
... Or if you just want to stick with basic regex's without extra packages:
> x <- "\"cm_ffm\":\"563.77\""
> sub("[^[:digit:]]*([[:digit:]]*.?[[:digit:]]*).*","\\1",x)
[1] "563.77"
Cheers,
Bert
On Wed, Aug 2, 2017 at 5:16 PM, Ismail SEZEN <sezenismail at gmail.com> wrote:
>
>> On 3 Aug 2017, at 02:59,
2010 Sep 15
3
From string to numeric
Hi, I have a string like "1,2,5,7,8".
>From this I want to create a numeric vector of length 5 (total number
of numbers in above string), with each element will be the number in
above string. Is there any possibility to doing this?
Thanks and regards,
2018 Mar 04
3
Change Function based on ifelse() condtion
Below is my full implementation (tried to make it simple as for demonstration)
Lapply_me = function(X = X, FUN = FUN, Apply_MC = FALSE, ...) {
if (Apply_MC) {
return(mclapply(X, FUN, ...))
} else {
if (any(names(list(...)) == 'mc.cores')) {
myList = list(...)[!names(list(...)) %in% 'mc.cores']
}
return(lapply(X, FUN, myList))
}
}
Lapply_me(as.list(1:4), function(xx) {
if (xx ==
2010 Jul 10
7
Need help on date calculation
Hi all, please see my code:
> library(zoo)
> a <- as.yearmon("March-2010", "%B-%Y")
> b <- as.yearmon("May-2010", "%B-%Y")
>
> nn <- (b-a)*12 # number of months in between them
> nn
[1] 2
> as.integer(nn)
[1] 1
What is the correct way to find the number of months between "a" and "b",
still
2018 Mar 04
0
Change Function based on ifelse() condtion
The reason that it works for Apply_MC=TRUE is that in that case you call
mclapply(X,FUN,...) and
the mclapply() function strips off the mc.cores argument from the "..."
list before calling FUN, so FUN is being called with zero arguments,
exactly as it is declared.
A quick workaround is to change the line
Lapply_me(as.list(1:4), function(xx) {
to
Lapply_me(as.list(1:4),
2018 Mar 04
2
Change Function based on ifelse() condtion
My modified function looks below :
Lapply_me = function(X = X, FUN = FUN, Apply_MC = FALSE, ...) {
if (Apply_MC) {
return(mclapply(X, FUN, ...))
} else {
if (any(names(list(...)) == 'mc.cores')) {
myList = list(...)[!names(list(...)) %in% 'mc.cores']
}
return(lapply(X, FUN, myList))
}
}
Here, I am not passing ... anymore rather passing myList
On Sun, Mar 4, 2018 at 10:37 PM,
2018 Mar 04
2
Change Function based on ifelse() condtion
@Eric - with this approach I am getting below error :
Error in FUN(X[[i]], ...) : unused argument (list())
On Sun, Mar 4, 2018 at 10:18 PM, Eric Berger <ericjberger at gmail.com> wrote:
> Hi Christofer,
> You cannot assign to list(...). You can do the following
>
> myList <- list(...)[!names(list(...)) %in% 'mc.cores']
>
> HTH,
> Eric
>
> On Sun, Mar
2012 Dec 14
5
A question on list and lapply
Dear all, let say I have following list:
Dat <- vector("list", length = 26)
names(Dat) <- LETTERS
My_Function <- function(x) return(rnorm(5))
Dat1 <- lapply(Dat, My_Function)
However I want to apply my function 'My_Function' for all elements of
'Dat' except the elements having 'names(Dat) == "P"'. Here I have
specified the name
2012 Mar 16
4
How to start R in maximized size???
Dear all, when I start R, I want that the console window should be in
the Maximized size automatically. Can somebody help me how to achieve
that?
Thanks and regards,
2013 Mar 28
4
How to replace '$' sign?
Hello again,
I want to remove "$" sign and replace with nothing in my text.
Therefore I used following code:
> gsub("$|,", "", "$232,685.35436")
[1] "$232685.35436"
However I could not remove '$' sign.
Can somebody help me why is it so?
Thanks and regards
2018 Mar 04
0
Change Function based on ifelse() condtion
That's fine. The issue is how you called Lapply_me(). What did you pass as
the argument to FUN?
And if you did not pass anything that how is FUN declared?
You have not shown that in your email.
On Sun, Mar 4, 2018 at 7:11 PM, Christofer Bogaso <
bogaso.christofer at gmail.com> wrote:
> My modified function looks below :
>
> Lapply_me = function(X = X, FUN = FUN, Apply_MC =
2017 Aug 10
3
Zoo rolling window with increasing window size
Hi Joshua, thanks for your prompt reply. However as I said, sum()
function I used here just for demonstrating the problem, I have other
custom function to implement, not necessarily sum()
I am looking for a generic solution for above problem.
Any better idea? Thanks,
On Fri, Aug 11, 2017 at 12:04 AM, Joshua Ulrich <josh.m.ulrich at gmail.com> wrote:
> Use a `width` of integer index
2011 Nov 10
5
A question on Programming
Dear all. Let say I have a group of codes which will be used in many places
in my overall R-code files. These group of codes will be used within a
for-loop (with a big length, like 10000 times) and also many other places
outside of that for loop. As this group of codes are being used in many
places, I thought to put them within a user-defined function.
Here my question is, is there any speed
2011 Jan 21
3
How to look into the asterisked function?
Hi friends, there is methods() function to see the all available methods for
a particular function, for example:
> head(methods("print"))
[1] "print.acf" "print.anova" "print.aov" "print.aovlist"
"print.ar" "print.Arima"
In this list, there are some functions which are asterisked like
print.acf().
2023 Nov 29
2
Code editor for writing R code
Bert,
Posit (formerly RStudio) has moved from RMarkdown to Quarto. They
still support RMarkdown but major new features will be in Quarto. For
new users a better choice would be Quarto.
See https://quarto.org/docs/faq/rmarkdown.html
Secondly, the OP stated he was using the VS-Code IDE, so there is no
reason to point him to the Posit/RStudio IDE for this functionality
which VS-Code supports very
2013 Jan 03
3
Question on Round function
I happened to see these:
> round(.5, 0)
[1] 0
> round(1.5, 0)
[1] 2
> round(2.5, 0)
[1] 2
> round(3.5, 0)
[1] 4
> round(4.5, 0)
[1] 4
What is the rule here?
Should not round(.5, 0) = 1, round(2.5, 0) = 3 etc?
Thanks and regards,
2017 Aug 03
0
Extracting numeric part from a string
... and Marc's solution is **much** better than mine.
-- Bert
Bert Gunter
"The trouble with having an open mind is that people keep coming along
and sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
On Wed, Aug 2, 2017 at 5:59 PM, Bert Gunter <bgunter.4567 at gmail.com> wrote:
> ... Or if you just want to stick with