search for: istazahn

Displaying 20 results from an estimated 65 matches for "istazahn".

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 yo...
2013 Jan 15
6
readHTMLTable (XML package)
Hi, I am using XML::readHTMLTable and getting the below error. Does anyone know why? Does this function not work with https? I didn''t see anything in help about that. > library(XML) > wampage<-readHTMLTable(''https://hr-workforce-analytics.llnl.gov/wf_pi_pop.html'',1) Error in htmlParse(doc) : File
2017 Aug 23
1
Getting all possible combinations
...rt > > > 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 >> <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. >>&...
2013 Jan 28
5
Adding 95% contours around scatterplot points with ggplot2
Hi all, I have been looking for means of add a contour around some points in a scatterplot as a means of representing the center of density for of the data. I''m imagining something like a 95% confidence estimate drawn around the data. So far I have found some code for drawing polygons around the data. These look nice, but in some cases the polygons are strongly influenced by outlying
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 > <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...
2016 Apr 25
0
Splitting Numerical Vector Into Chunks
...what do you want? Cheers Petr > -----Original Message----- > From: Sidoti, Salvatore A. [mailto:sidoti.23 at buckeyemail.osu.edu] > Sent: Sunday, April 24, 2016 1:48 AM > To: PIKAL Petr <petr.pikal at precheza.cz>; William Dunlap > <wdunlap at tibco.com>; Ista Zahn <istazahn at gmail.com> > Subject: RE: [R] Splitting Numerical Vector Into Chunks > > There are terrific suggestions and I so appreciate everyone's help! > > Just one additional question: I also have some time data that accompanies > this analysis. It is in the format h:m:s:00 where...
2017 Jul 06
1
Efficient swapping
...h(tl %in% tmp[ii,'R1'], arr.ind = TRUE) if(kk%%2!=0) { # swap the their levels between the two factors qq <- tmp[ii,]$R1 tmp[ii,]$R1 <- tmp[ii,]$R2 tmp[ii,]$R2 <- qq } } How to go about this case? Thanks! On Thu, Jul 6, 2017 at 5:16 PM, Ista Zahn <istazahn at gmail.com> wrote: > How about > > foo <- with(list(r1 = tmp$R1, > r2 = tmp$R2, > swapme = (as.numeric(tmp$R1) - as.numeric(tmp$R2)) %% 2 != 0), > { > tmp[swapme, "R1"] <- r2[swapme] > tmp[swapme, "R2"]...
2013 Feb 20
5
ggplot2 customizing a plot
Dear all, I want some help improve my ggplot as following: Make the plottable area with grid, so is easy one to see where each box refers to x and y values. Add a color bar but with fixed values, that I want to specify. How   I can do those two? Before is some code what I have tried so far. Regards Alex
2018 Feb 20
1
Take the maximum of every 12 columns
...ng regular subsetting, e.g. Y <- sapply(seq(from = 0, to = 2880, by = 12), FUN = function(offset) { rowMaxs(X[, offset + 1:12]) }) Subsetting data frames by columns is already efficient, so the same argument does not apply there. /Henrik On Tue, Feb 20, 2018 at 10:00 AM, Ista Zahn <istazahn at gmail.com> wrote: > On Tue, Feb 20, 2018 at 11:58 AM, Bert Gunter <bgunter.4567 at gmail.com> > wrote: > >> Ista, et. al: efficiency? >> (Note: I needed to correct my previous post: do.call() is required for >> pmax() over the data frame) >> >> &gt...
2013 Jul 23
7
cbind error with check.names
Here is an example where cbind fails with an error when check.names=TRUE is set. data(airquality) airQualityBind =cbind(airquality,airquality,check.names =TRUE)  I understand that cbind is a call to data.frame and the following works: airQualityBind =data.frame(airquality,airquality,check.names =TRUE) but I would like to understand why cbind throws an error. I asked this question on SO here:
2017 Aug 23
1
Getting all possible combinations
...g 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: >> >> 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 binomia...
2017 Nov 09
1
Sharing an R installation via NFS on ubuntu cluster
...problem, and indeed, not my question. my question was how could I share the resulting R installation over NFS? Do I have to export every location where apt-get installs a component or can I force apt-get to place the installation in a certain location? On 8 November 2017 at 17:37, Ista Zahn <istazahn at gmail.com> wrote: > On Wed, Nov 8, 2017 at 6:14 AM, Florian Oswald <florian.oswald at gmail.com> > wrote: > > hi all, > > > > i want to share an R installation from a master node to several compute > > nodes via NFS. all nodes run ubuntu 16.04. I tried bui...
2010 May 11
4
Table and Sweave
Hi, in Latex I get the table using: \begin{table}[H] \centering \renewcommand{\arraystretch}{1.3} \setlength{\tabcolsep}{18pt} \begin{tabular}{cc} \hline Idade & Frequ?ncia \\ \hline $18 \vdash 26$ & 11 \\ $26 \vdash 34$ & 8 \\ $34 \vdash 42$ & 26 \\ $42 \vdash 50$ & 20 \\ $50 \vdash 58$ & 23 \\ $58 \vdash 66$ & 30 \\ $66
2017 Jul 06
2
Efficient swapping
...h(tl %in% tmp[ii,'R1'], arr.ind = TRUE) if(kk%%2!=0) { # swap the their levels between the two factors qq <- tmp[ii,]$R1 tmp[ii,]$R1 <- tmp[ii,]$R2 tmp[ii,]$R2 <- qq } } How to go about this case? Thanks! On Thu, Jul 6, 2017 at 5:16 PM, Ista Zahn <istazahn at gmail.com> wrote: > How about > > foo <- with(list(r1 = tmp$R1, > r2 = tmp$R2, > swapme = (as.numeric(tmp$R1) - as.numeric(tmp$R2)) %% 2 != 0), > { > tmp[swapme, "R1"] <- r2[swapme] > tmp[swapme, "R2"]...
2010 May 02
4
Scree diagram,
hello, I''ve two questions today. 1) I''m trying to do a scree diagram, I did a Google for a specific command I could used to do so. All I could find is a screeplot. Are they the same command? 2) what command can I used to present a PC scores, eigenvectors of the PC scores, and component correlations? thanks! -- View this message in context:
2018 Feb 20
1
Take the maximum of every 12 columns
...https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> >> <#m_4297398466082743447_m_6071581590498622123_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> >> >> On Tue, Feb 20, 2018 at 5:10 PM, Ista Zahn <istazahn at gmail.com> wrote: >> >>> Hi Milu, >>> >>> byapply(df, 12, function(x) apply(x, 1, max)) >>> >>> You might also be interested in the matrixStats package. >>> >>> Best, >>> Ista >>> >>> On Tue, Feb 2...
2017 Dec 15
2
Errors in reading in txt files
...n MacQueen > Lawrence Livermore National Laboratory > 7000 East Ave., L-627 > Livermore, CA 94550 > 925-423-1062 > Lab cell 925-724-7509 > > > > On 12/14/17, 11:01 AM, "R-help on behalf of Ista Zahn" < > r-help-bounces at r-project.org on behalf of istazahn at gmail.com> wrote: > > On Thu, Dec 14, 2017 at 1:58 PM, Berend Hasselman <bhh at xs4all.nl> > wrote: > > > >> On 14 Dec 2017, at 19:36, lily li <chocold12 at gmail.com> wrote: > >> > >> Hi R users, > >> >...
2013 Jan 02
11
suggestions about import SAS results to R.
Hello all, I have got some data in SAS, and I export it to one excel workbook with multiple sheets, for example, each sheet has the sales information for each state. Then I need to use R to do plotting, analysis on those sales data, where I need to load the data from excel to R. When I read the article at this link:
2017 Jul 05
1
Help with reshape/reshape2 needed
Hi Tom, Or perhaps: #assume the data frame is named "tadf" library(prettyR) stretch_df(tadf,1,2) Jim On Thu, Jul 6, 2017 at 6:50 AM, Ista Zahn <istazahn at gmail.com> wrote: > The reason it doesn't work easily with reshape/reshape2 is that the > order of the rows is not determined. Your answer could be > > 1957 1958 ... 1985 1986 > 0.8625000 0.7500000 ... 0.7307692 0.23750000 > 0.0733945 0.6435644 ....
2013 Mar 21
3
Control variables in mediation analysis
Hi everyone,I would like to test a mediation model, that has several control variables. More specifically, I would like to test the indirect effect with bootstrapping. However, all the packages I have found so far (e.g. MBESS) only allow testing a simple mediation model (One independent, one mediator, one dependent) so that I cannot include any controls. Can somebody help me? [[alternative HTML