search for: worik

....1$p.value [1] 0.646054 I would have thought these would have been the same. Like below.... > t.2 <- t.test(x2, y2) > 2 * pt(t.2$statistic, t.2$parameter) t 0.8679732 > t.2$p.value [1] 0.8679732 This is what I expect. clearly I misunderstand some thing. What is it? cheers Worik [[alternative HTML version deleted]]

...h this: as.Date("Sep-1981", format="%b-%Y") Returns "NA" >From documentation for strftime '%b' Abbreviated month name in the current locale. (Also matches full name on input.) '%Y' Year with century. What am I doing wrong? cheers Worik [[alternative HTML version deleted]]

It seems obvious to me that the empty string "" is length 0. cheers Worik [[alternative HTML version deleted]]

...port? I have a long script and an error: Error in `[.xts`(x, xsubset) : subscript out of bounds It would be very helpful, and save a lot of time, if there was some indication in the error message which line the error was. I can find it using binary search but that is a painful process. cheers Worik [[alternative HTML version deleted]]

I am interested in the package 'rgp' But.... > install.packages("rgp") Installing package(s) into ‘/home/worik/R/x86_64-pc-linux-gnu-library/2.12’ (as ‘lib’ is unspecified) Warning message: In getDependencies(pkgs, dependencies, available, lib) : package ‘rgp’ is not available It is in cran: http://cran.r-project.org/web/packages/rgp/index.html How do I install it? cheers Worik [[alternative HTML ve...

When I say: > Sys.time() [1] "2012-11-12 21:30:14 NZDT" > But that is not what my clock on the wall and my system say. Cannot show you my clock but... worik@lemy:/tmp$ date Tue Nov 13 10:32:20 NZDT 2012 Sys.time() is returning GMT $version.string [1] "R version 2.14.1 (2011-12-22)" > Sys.timezone() [1] "NZDT" > I'm a little lost! Worik [[alternative HTML version deleted]]

...neNum work. I get "No source refs found.". I am starting to loose my mind! A debugger where I could set breakpoints with a little more granularity than the function level and a little more accessible than the trace function. What I ideally want is GDB for R. Does that exist? cheers Worik

...o be formated to set the digits parameter but that is complex and leaves me insecure that thre may be other problems I have not uncovered. Is there a simple way of using library functions to insert big.marks and get the number of trailing digits correct? Perhaps some way of using sprintf? cheers Worik [[alternative HTML version deleted]]

...]> class(Time) [1] "POSIXct" "POSIXt" Browse[2]> class(index(DATA.ba[[p]]["2012-03-20 00:59:57","bid"])) [1] "POSIXct" "POSIXt" So the variable 'Time' should be good to index DATA.ba[[p]]. I am hopelessly confused. cheers Worik [[alternative HTML version deleted]]

...UE FALSE FALSE FALSE FALSE [13] FALSE FALSE FALSE TRUE TRUE FALSE FALSE TRUE OK so far but I try... > v1<.3 || v1>.7 [1] TRUE > Not a vector. I have tried a lot of combinations culminating in... ifelse(((v1<.3) || (v1>.7)), TRUE, FALSE) [1] TRUE > What can I do? cheers Worik > v1 [1] 1 1 1 0 0 0 0 0 0 1 > v2 [1] 1 1 1 0 1 0 0 0 1 1 The [[alternative HTML version deleted]]

How can I increment the value of a Date class? I want to add a day, month or year to a date. cheers Worik [[alternative HTML version deleted]]

...:3){ for(j in 1:(5-1)){ for(k in (j+1):5){ for(l in (j+2):5){ print(paste("1 JKL:", j,k,l,sep=" ")) } } } } Prints out (among other things) [1] "1 JKL: 4 5 6" That is for(l in (j+2):5) sets l to 6 one more than the upper limit. cheers Worik [[alternative HTML version deleted]]

...lf an hour or so fails with an error Error in x[value] <- NA : only 0's may be mixed with negative subscripts How can I find out where that error occurs? If I have to do a binary search using error messages it will take a long time! Is there some way I can generate a stack trace? cheers Worik [[alternative HTML version deleted]]

Friends If I have a matrix such as... [,1] [,2] [1,] 7 7 [2,] 7 9 [3,] 9 2 [4,] 7 9 And I want to find the row number that has the minimum value of column 2 (row 3 in this case) how can I do it? Is there a simple way? cheers Worik [[alternative HTML version deleted]]

...;package:TTR"); Rcpp::Function sma = TTR["SMA"]; SEXP sma_res = sma(rv); How do I get the values of sma_res from a SEXP type into something useful in C++, like a vector<float>? Where can I find some documentation of SEXP? I have tried googling it to no avail. cheers Worik [[alternative HTML version deleted]]

...ed data into d for(i in SomeVectorOfFactors){ for(N in Names){ d[[N]][i] <- FunctionCallOfSomeSort(i) } } I want to create the data.frame, d, in the same style I access it. d <- data.frame(dates=Dates, [[Names]]=vectors(.....)) Then it is much simpler to add new columns. Worik ST [[alternative HTML version deleted]]

...2 -0.06190365 1 0.2643529 ... P 0.4517 0.001080 ... : : I think I could write a function for it if such a function does not exist if I could do... > CT23 <- cor.test(X2, X3) > CT23$P 0.001080 > CT23$V 0.2643529 But I do not know how. cheers Worik

...> V.f() 1 matrix 1 7 2 matrix 2 7 Error in vapply(c(1, 2), A.f, rep("a", 7)) : values must be length 7, but FUN(X[[2]]) result is length 14 > Calling S.f() returns a list. Do I have to accept I am going to be getting a list and I have to assemble a matrix in a loop? cheers Worik

...nctions of (windows of) two columns. I have been looking at the ff and bigmemory packages but am not sure that they will do. Before I get too deep can some one offer some wisdom about what the best direction to go would be? Switching to C/C++ is definitely an option if it is all too hard cheers Worik [[alternative HTML version deleted]]

Hi! I have just added login feature to my rails application (followed the instruction from (Agile Web Development with Rails) but now I am getting strange errors (looks to me like some kind of routing problem) under the passenger/apache. The error is: 500 Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. From the log: