Re: [R] , Updating Table
On 24/07/2010 11:25 AM, Charles C. Berry wrote: On Fri, 23 Jul 2010, Marcus Liu wrote: Hi everyone, Is there any command for updating table withing a loop?� "Loops? We don't need no stinking loops!" (From 'The Good, the Bad, and the Rgly') Actually, that quote comes from the TreasR of the SieRa MadRe. Duncan Murdoch tab <- table(data.raw, findInterval(seq(along=data.raw), ind+1 ) ) tab %*% upper.tri(tab,diag=T) or tab2 <- tapply( factor(data.raw), findInterval(seq(along=data.raw), ind+1 ), table) Reduce( "+", tab2, accum=TRUE ) HTH, Chuck p.s. See the posting guide re including a reproducible example with requests like yours. For instance, at i, I have a table as ZZ = table(data.raw[1:ind[i]]) where "ind" = c(10, 20, 30, ...).�Then , ZZ will be as follow "A" "B" "C" �3��� 10�� 2 At (i + 1), ZZ = table(data.raw[(ind[i]+1):ind[i+1]]) "A" "B" "D" �4 �� 7��� 8 Is there any command that can update the table ZZ for each time so that in the above example, ZZ will be "A" "B" "C" "D" �7��� 17�� 2��� 8 Thanks. liu [[alternative HTML version deleted]] Charles C. Berry(858) 534-2098 Dept of Family/Preventive Medicine E mailto:cbe...@tajo.ucsd.edu UC San Diego http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901 __ R-help@r-project.org mailing list 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. __ R-help@r-project.org mailing list 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.
Re: [R] , Updating Table
On Fri, 23 Jul 2010, Marcus Liu wrote: Hi everyone, Is there any command for updating table withing a loop?? "Loops? We don't need no stinking loops!" (From 'The Good, the Bad, and the Rgly') tab <- table(data.raw, findInterval(seq(along=data.raw), ind+1 ) ) tab %*% upper.tri(tab,diag=T) or tab2 <- tapply( factor(data.raw), findInterval(seq(along=data.raw), ind+1 ), table) Reduce( "+", tab2, accum=TRUE ) HTH, Chuck p.s. See the posting guide re including a reproducible example with requests like yours. For instance, at i, I have a table as ZZ = table(data.raw[1:ind[i]]) where "ind" = c(10, 20, 30, ...).?Then , ZZ will be as follow "A" "B" "C" ?3??? 10?? 2 At (i + 1), ZZ = table(data.raw[(ind[i]+1):ind[i+1]]) "A" "B" "D" ?4 ?? 7??? 8 Is there any command that can update the table ZZ for each time so that in the above example, ZZ will be "A" "B" "C" "D" ?7??? 17?? 2??? 8 Thanks. liu [[alternative HTML version deleted]] Charles C. Berry(858) 534-2098 Dept of Family/Preventive Medicine E mailto:cbe...@tajo.ucsd.edu UC San Diego http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901 __ R-help@r-project.org mailing list 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.
Re: [R] , Updating Table
If I am not wrong, it seems that you want to get factor counts in the whole scale of data.raw. Maybe you can do that just like this: table(data.raw) On Sat, Jul 24, 2010 at 1:44 AM, Marcus Liu wrote: > Hi everyone, > > Is there any command for updating table withing a loop? For instance, at i, > I have a table as ZZ = table(data.raw[1:ind[i]]) where "ind" = c(10, 20, 30, > ...). Then , ZZ will be as follow > > "A" "B" "C" > 3 10 2 > > At (i + 1), ZZ = table(data.raw[(ind[i]+1):ind[i+1]]) > > "A" "B" "D" > 4 7 8 > > Is there any command that can update the table ZZ for each time so that in > the above example, ZZ will be > > "A" "B" "C" "D" > 7 17 2 8 > > Thanks. > > liu > > > > > [[alternative HTML version deleted]] > > > __ > R-help@r-project.org mailing list > 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. > > __ R-help@r-project.org mailing list 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.
[R] , Updating Table
Hi everyone, Is there any command for updating table withing a loop? For instance, at i, I have a table as ZZ = table(data.raw[1:ind[i]]) where "ind" = c(10, 20, 30, ...). Then , ZZ will be as follow "A" "B" "C" 3 10 2 At (i + 1), ZZ = table(data.raw[(ind[i]+1):ind[i+1]]) "A" "B" "D" 4 7 8 Is there any command that can update the table ZZ for each time so that in the above example, ZZ will be "A" "B" "C" "D" 7 17 2 8 Thanks. liu [[alternative HTML version deleted]] __ R-help@r-project.org mailing list 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.
