Displaying 20 results from an estimated 8135 matches similar to: "Getting all possible combinations"

2017 Aug 23

2

Getting all possible combinations

ummm, Ista, it's 2^n.
Cheers,
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 23, 2017 at 8:52 AM, Ista Zahn <istazahn at gmail.com> wrote:
> On Wed, Aug 23, 2017 at 11:33 AM, Christofer Bogaso
>

2017 Aug 23

1

Getting all possible combinations

On Wed, Aug 23, 2017 at 11:33 AM, Christofer Bogaso
<bogaso.christofer at gmail.com> wrote:
> Hi again,
>
> I am exploring if R can help me to get all possible combinations of
> members in a group.
>
> Let say I have a group with 5 members : A, B, C, D, E
>
> Now I want to generate all possible unique combinations with all
> possible lengths from that group e.g.

2017 Aug 23

1

Getting all possible combinations

On Wed, Aug 23, 2017 at 12:35 PM, Bert Gunter <bgunter.4567 at gmail.com> wrote:
> ummm, Ista, it's 2^n.
ummm yes ughhhh.
My point is, if the number of groups is large, check it before hand.
If you can check it without embarrassing yourself in public like I did
that's even better.
Best,
Ista
>
> Cheers,
> Bert
>
>
> Bert Gunter
>
> "The trouble

2017 Aug 23

1

Getting all possible combinations

> On 23 Aug 2017, at 20:51 , Ista Zahn <istazahn at gmail.com> wrote:
>
> On Wed, Aug 23, 2017 at 12:35 PM, Bert Gunter <bgunter.4567 at gmail.com> wrote:
>> ummm, Ista, it's 2^n.
>
> ummm yes ughhhh.
>
You didn't really say otherwise: sum(choose(n,0:n)) == 2^n by the binomial expansion of (1+1)^n (but you knew that)
This points to a different

2017 Aug 23

1

Getting all possible combinations

Inline.
-- 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 23, 2017 at 1:58 PM, peter dalgaard <pdalgd at gmail.com> wrote:
>
>> On 23 Aug 2017, at 20:51 , Ista Zahn <istazahn at gmail.com> wrote:
>>

2012 Dec 01

12

Getting all possible contingency tables

Hello all,
Let say I have 2-way contingency table:
Tab <- matrix(c(8, 10, 12, 6), nr = 2)
and the Chi-squared test could not reject the independence:
> chisq.test(Tab)
Pearson''s Chi-squared test with Yates'' continuity correction
data: Tab
X-squared = 1.0125, df = 1, p-value = 0.3143
However I want to get all possible contingency tables under this

2018 Jun 01

1

Unable to take correct Web-snapshot

Thanks for that information.
However how can I use R to directly get data from that API?
On Fri, Jun 1, 2018 at 8:36 PM Martin M?ller Skarbiniks Pedersen <
traxplayer at gmail.com> wrote:
> On 1 June 2018 at 15:08, Christofer Bogaso <bogaso.christofer at gmail.com>
> wrote:
> > Hi again,
> >
> > I use the *webshot* package to take snapshot from Webpage.

2017 Jul 18

3

Creating/Reading a complex string in R

Thanks for your pointer.
Is there any way in R how to replace " ' " with " /' " programmatically?
My actual string is quite lengthy, so changing it manually may not be
possible. I am aware of gsub() function, however not sure I can apply
it directly on my original string.
Regards,
On Tue, Jul 18, 2017 at 10:27 PM, John McKown
<john.archie.mckown at

2018 Jan 06

2

How to programmatically save a web-page using R (mimicking Command+S)

Hi,
I would appreciate if someone can give me a pointer on how to save a
webpage programmatically using R.
For example, let say I have this webpage open in my browser:
http://www.bseindia.com/stock-share-price/dabur-india-ltd/dabur/500096/
When manually I save this page, I just press Command+S (using Mac) and
then this page get saved in hard-disk
Now I want R to

2009 Sep 25

6

Problem on plotting TS using GGPLOT

Hi, I have following codes :
library(zoo); library(ggplot2); library(plyr)
dat <- rnorm(306); vv <- letters[1:6]; dat1 <- data.frame(dat, vv)
dat2 = zooreg(rnorm(51), as.yearmon(as.Date("2000-01-01")), frequency=12)
ggplot(dat1) +
geom_line(aes(y=dat, x=index(dat2), colour=vv), group=vv, size =
1.3)
However I got error while plotting them :

2018 Jan 06

1

How to programmatically save a web-page using R (mimicking Command+S)

The 'webshot' package (on CRAN) can do this.
Henrik
On Jan 6, 2018 05:27, "Christofer Bogaso" <bogaso.christofer at gmail.com>
wrote:
> Hi,
>
> I would appreciate if someone can give me a pointer on how to save a
> webpage programmatically using R.
>
> For example, let say I have this webpage open in my browser:
>
>

2018 Mar 04

2

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),

2016 Apr 16

1

How to delete Locked files in Mac

The command:
system("chflags -R nouchg /path/to/your/directory")
... should unlock your files recursively in the directory. Then proceed with
file.remove()
B.
On Apr 16, 2016, at 3:09 PM, Christofer Bogaso <bogaso.christofer at gmail.com> wrote:
> Hi,
>
> I am looking for some R code, which will delete all files in a Folder
> that contains

2018 Mar 04

1

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 ==

2012 Mar 16

6

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 Apr 29

3

Need help on matrix calculation

Hello again,
Let say I have 1 matrix:
Mat <- matrix(1:12, 4, 3)
rownames(Mat) <- letters[1:4]
Now I want to subscript of Mat in following way:
Subscript_Vec <- c("a", "e", "b", "c")
However when I want to use this vector, I am geting following error:
Mat[Subscript_Vec, ]
Error: subscript out of bounds
Basically I want to get my final matrix

2018 Mar 04

1

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,

2017 Jul 19

1

Creating/Reading a complex string in R

It was suggested to quote your string with *backticks* (` ... `) rather
than single quotes.
String <- `<html>
<head>
...
`
On 7/18/2017 1:05 PM, Christofer Bogaso wrote:
> Thanks for your pointer.
>
> Is there any way in R how to replace " ' " with " /' " programmatically?
>
> My actual string is quite lengthy,

2018 Mar 04

1

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 =

2010 Jun 16

7

Reading data from xls..........please help

Can anyone help me how to read xls file into R. I have tried following
library(gdata)
xlsfile <- file.path(.path.package(''gdata''),''xls'',''iris.xls'')
read.xls(xlsfile)
I got following error:
Converting xls file to csv file... Error in system(cmd, intern = !verbose) :
perl not found
Error in file.exists(tfn) : invalid ''file''