If I'm summing over (i,j,k) each from 1 to 3 And I have ?condition that (i>j>k) But I want to restrict this condition to only cases where i,j,k>1 Sent from Yahoo Mail on Android From:"Jeff Newmiller" <jdnewmil at dcn.davis.CA.us> Date:Mon, Oct 19, 2015 at 1:24 AM Subject:Re: [R] condition in triple summation Learn to post using plain text format. We are seeing garbage on the screen. --------------------------------------------------------------------------- Jeff Newmiller? ? ? ? ? ? ? ? ? ? ? ? The? ? .....? ? ? .....? Go Live... DCN:<jdnewmil at dcn.davis.ca.us>? ? ? ? Basics: ##.#.? ? ? ##.#.? Live Go... ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Live:? OO#.. Dead: OO#..? Playing Research Engineer (Solar/Batteries? ? ? ? ? ? O.O#.? ? ? #.O#.? with /Software/Embedded Controllers)? ? ? ? ? ? ? .OO#.? ? ? .OO#.? rocks...1k --------------------------------------------------------------------------- Sent from my phone. Please excuse my brevity. On October 18, 2015 2:03:34 PM PDT, Sherouk Moawad via R-help <r-help at r-project.org> wrote:>Dear R-Expertsx=c(0,0.3, 0.5,0.6)sum(sapply(1:4, function(i) >{sum(sapply(1:3, function(j){sum(sapply(1:2, function(k) >{(i>j)*(j>k)*exp(x[i]+x[j]+x[k])}))}))})) >I want to restrict the condition (i>j>k) to only those cases where >i>1&j>1&k>1In other words'if i=1 then i>=jif j=1 then j>=kother wise >i>j>kcan this be done using coding or notThank you >??? [[alternative HTML version deleted]] > >______________________________________________ >R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see >https://stat.ethz.ch/mailman/listinfo/r-help >PLEASE do read the posting guide >http://www.R-project.org/posting-guide.html >and provide commented, minimal, self-contained, reproducible code.[[alternative HTML version deleted]]
Not sure I understand what your condition 'i > j > k' means in the context of where each of the values is 1:3. The only value that meets that condition is i =3, j=2 & k=1, but you said exclude any cases where the values were equal to 1. Can you clarify with an example what you mean. Jim Holtman Data Munger Guru What is the problem that you are trying to solve? Tell me what you want to do, not how you want to do it. On Mon, Oct 19, 2015 at 3:53 AM, Sherouk Moawad via R-help < r-help at r-project.org> wrote:> If I'm summing over (i,j,k) each from 1 to 3 > > And I have condition that (i>j>k) > > But I want to restrict this condition to only cases where i,j,k>1 > > Sent from Yahoo Mail on Android > > From:"Jeff Newmiller" <jdnewmil at dcn.davis.CA.us> > Date:Mon, Oct 19, 2015 at 1:24 AM > Subject:Re: [R] condition in triple summation > > Learn to post using plain text format. We are seeing garbage on the screen. > > --------------------------------------------------------------------------- > Jeff Newmiller The ..... ..... Go Live... > DCN:<jdnewmil at dcn.davis.ca.us> Basics: ##.#. ##.#. Live Go... > Live: OO#.. Dead: OO#.. Playing > Research Engineer (Solar/Batteries O.O#. #.O#. with > /Software/Embedded Controllers) .OO#. .OO#. rocks...1k > --------------------------------------------------------------------------- > Sent from my phone. Please excuse my brevity. > > > On October 18, 2015 2:03:34 PM PDT, Sherouk Moawad via R-help < > r-help at r-project.org> wrote: > >Dear R-Expertsx=c(0,0.3, 0.5,0.6)sum(sapply(1:4, function(i) > >{sum(sapply(1:3, function(j){sum(sapply(1:2, function(k) > >{(i>j)*(j>k)*exp(x[i]+x[j]+x[k])}))}))})) > >I want to restrict the condition (i>j>k) to only those cases where > >i>1&j>1&k>1In other words'if i=1 then i>=jif j=1 then j>=kother wise > >i>j>kcan this be done using coding or notThank you > > [[alternative HTML version deleted]] > > > >______________________________________________ > >R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see > >https://stat.ethz.ch/mailman/listinfo/r-help > >PLEASE do read the posting guide > >http://www.R-project.org/posting-guide.html > >and provide commented, minimal, self-contained, reproducible code. > > > [[alternative HTML version deleted]] > > > ______________________________________________ > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. >[[alternative HTML version deleted]]
| If for example I have a double sammation on (xj+xi)The first summation from 1
to 3 And second summation is from 1 to 2If I put the condition of (i>j ) then
the term (x1+x1) will not be included?I need to cut the condition into tow
parts?If i&j>1 then i>jWhile if i=1 then i>=jSo that the term
(x1+x1) is includedCan this be done or it's an imaginary casePlease help |
On Monday, October 19, 2015 4:00 PM, jim holtman <jholtman at
gmail.com> wrote:
Not sure I understand what your condition 'i > j > k' means in
the context of where each of the values is 1:3.? The only value that meets that
condition is i =3, j=2 & k=1, but you said exclude any cases where the
values were equal to 1.
Can you clarify with an example what you mean.
Jim Holtman
Data Munger Guru
?
What is the problem that you are trying to solve?
Tell me what you want to do, not how you want to do it.
On Mon, Oct 19, 2015 at 3:53 AM, Sherouk Moawad via R-help <r-help at
r-project.org> wrote:
If I'm summing over (i,j,k) each from 1 to 3
And I have ?condition that (i>j>k)
But I want to restrict this condition to only cases where i,j,k>1
Sent from Yahoo Mail on Android
From:"Jeff Newmiller" <jdnewmil at dcn.davis.CA.us>
Date:Mon, Oct 19, 2015 at 1:24 AM
Subject:Re: [R] condition in triple summation
Learn to post using plain text format. We are seeing garbage on the screen.
---------------------------------------------------------------------------
Jeff Newmiller? ? ? ? ? ? ? ? ? ? ? ? The? ? .....? ? ? .....? Go Live...
DCN:<jdnewmil at dcn.davis.ca.us>? ? ? ? Basics: ##.#.? ? ? ##.#.? Live
Go...
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Live:? OO#.. Dead: OO#..? Playing
Research Engineer (Solar/Batteries? ? ? ? ? ? O.O#.? ? ? #.O#.? with
/Software/Embedded Controllers)? ? ? ? ? ? ? .OO#.? ? ? .OO#.? rocks...1k
---------------------------------------------------------------------------
Sent from my phone. Please excuse my brevity.
On October 18, 2015 2:03:34 PM PDT, Sherouk Moawad via R-help <r-help at
r-project.org> wrote:>Dear R-Expertsx=c(0,0.3, 0.5,0.6)sum(sapply(1:4, function(i)
>{sum(sapply(1:3, function(j){sum(sapply(1:2, function(k)
>{(i>j)*(j>k)*exp(x[i]+x[j]+x[k])}))}))}))
>I want to restrict the condition (i>j>k) to only those cases where
>i>1&j>1&k>1In other words'if i=1 then i>=jif j=1
then j>=kother wise
>i>j>kcan this be done using coding or notThank you
>??? [[alternative HTML version deleted]]
>
>______________________________________________
>R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
>https://stat.ethz.ch/mailman/listinfo/r-help
>PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.
? ? ? ? [[alternative HTML version deleted]]
______________________________________________
R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
[[alternative HTML version deleted]]