search for: phddas

Full_Name: Fred J. Version: 1.8.1 OS: windows 2000 Submission from: (NULL) (203.26.24.216) platform i386-pc-mingw32 the error can be duplicated as follows > rt <- data.frame(8:15, 7:14, 6:13, 5:12, 4:11, 3:10, 2:9, 1:8) > library(fdim) > FD <- (fdim(rt,q=2)) Error in slopeopt(AllPoints, Alpha) : Object "LineP" not found

Hello could you please tell me what is the function to get the absolute value of the real or complex number. most of other languages it is abs(x) , what is it in r? I did few searhces in the help docs for no avail. thanks F.J

Hello I am wondering, how do I find if R has a certain funciton to do a given task. do I just type help.search("rate"). I am just trying to find a function to calculate the rate of change for a variable. I could come up with one if there isn't any allready builtin. thanks

...t; package(s) from CRAN..). Failing that, please tell > us more about what the error was. > > Regards, > > Andrew C. Ward > > 56 Azalea Crescent > Fitzgibbon Qld 4018 > acward at uqconnect.net.au > > > On Saturday, March 06, 2004 3:47 PM, Fred J. > [SMTP:phddas at yahoo.com] wrote:

Hello I could use some help here with trying to use perl stype regex to extract the first group of letters before a ( . ) so if I have a sting AACEE.adiid and wanting AACEE i <- "AACEE.adiid" grep(".+\..?+",i,perl=T) I must be doing somthing wrong but don't know what it is? thanks

Hello getdata <- function(p){ fname <- NULL; dl <- list()#build the sturcture builddl <- function(q,s){ fname <<- c(fname,s) #where "s" is a string dl <<- list( dl, dt2) } list(names = fname, data = dl) } data <- getdata("c:\somepath") > data $names [1] "fname" $data $data[[1]] <--- since there is no [[1]] how can I stop

dear R users I have been trying a lot to get this task accomplished but need your help. input: x <- c(3,3,4,4,4,4,5,7,7,0,1,1,2,2,2) desired output 3 1 2 4 3 6 7 8 9 ... which means, 3 is repeated at index 1:2 4 is repeated at index 3:6 ... my effort has not been that good. a <- !c(NA,diff(x)); b <- which(a==1); a[b-1]=1; cbind(x,a); or sp <-

dear R users I need to modify values in a vector, the modification needs to be based on a matrix which define the from_index, to_index and a value. example: > x <- c(1, 0, 6, 3, 8, 9, 4, 3, 0) > m from to value 1 2 3 5 2 5 7 8 3 9 9 11 > expected: 1 5 5 3 8 8 8 3 11 insert {R.utils} and append are too expensive and indirect for the

Hello I am getting this Error in slopeopt(AllPoints, Alpha) : Object "LineP" not found when the dim(<data.frame>) of the data matrix for which the fdim is being calculated hits a certain values depending on the data set. e.g print(dim(mat)) fd <- fdim(mat,q=2) [1] 2743 2 [1] 2742 3 [1] 2741 4 [1] 2740 5 [1] 2739 6 [1] 2738 7 [1] 2737 8 [1] 2736 9 [1] 2735

Dear R users given a numeric array (a sequence of reals), I am interested in finding the subsets of sequences (each with start and end index) which match a given sd range. I read the docs on match and which and the "see also" but could not come up with a way. I could loop with a stepping window over the sequence but that would be limited to a fixed size window, I guess I as well

Hello Coming from matlab background, I could use some help on this one. I need to generate a data set based on this equation X(t) = 3.8x(t-1) (1-x(t-1)) + e(t), where e(t) is a N(0,0,001) random variable I need say 100 values. How do I do this? Thanks

Dear R users I am trying to sum selective elements of a vector but my solution is not cutting it. Example: > g <- 1:5; > from <- 1:3; > to <- 3:5; from to 1 3 2 4 3 5 so I expect 3 sums from g 1+2+3 that is 1 to 3 of g 2+3+4 that is 2 to 4 of g 3+4+5 that is 3 to 5 of g my solution will not work. sum.em <- function(g, c1, c2)

Hello just learned HowTo but R, reminded me with the way Perl does it but with much less on-line commands, R "AFAIK" has n, c, Q and where and cann't debug outside the {}. 1) is there a more versatile/flexable debugging method for R? I have saved 2 functions in an ASCII file "digfun". "getdata" function calls "squash" function and both use loops. In

Hi thank you for talking the time to help me with this. I have a sequence of numbers in a file and an equal sequence of various character, say(a b c d) each occurs more than once. I need to plot the numbers so that numbers corresponding to a in the other sequence would have green dots, those corresponding to b a red dot, nothing on c and blue square for d. i.e 2 a show a green dot 4 b show a

dear R users not sure why I am not able to install tkrplot. > install.pacakges ("tkrplot", dependencies=TRUE) ... Configure: error: no acceptable C compiler found in $path ... well, I am using debian testing 2.6.15, R Version 2.2.1 (2005-12-20 r36812) #whereis gcc gcc: /usr/lib/gcc thank you --------------------------------- [[alternative HTML version

Hello Does any one know what is the complexity scale of fdim "fractal calculation function", I need to find O(N) function to do fractal calculation. Thanks a lot

Hello group. I am trying to install fdim on my win2000 os. this command is giving error and I feel I am not using it correctly, could some one show me why. install.packages(fdim, "C:\Program Files\R\rw1081\library" , CRAN = "http://cran.r-project.org", "internal", available = NULL, destdir = "C:\Program Files\R\rw1081\library", installWithVers =

Hello when I close and reopen R it gives back a different wd than what I used in setwd. how can I get it to permenently use dirname in setwd("dirname") and not the other name it keeps defaulting to? I am using W2K and ESS thanks

Hello I am trying to follow the instruction in README.debug on how to debug a code I wrote, so since it only shows the steps on how to debug a built in function and not a code in an *.R file, so ok, let me do this and maybe later I can find out how to code my code in filename.R. now > library(debug) Loading required package: mvbutils MVBUTILS: no "tasks" vector found in ROOT Loading

Hello the maunal states "When the if statement is not in a block the else, if present, must appear on the same line as statement1. Otherwise the new line at the end of statement1 yields a syntactically complete statement that is evaluated." well, what is wrong with this if structure? I am getting an error on the line where "else" is thanks if (exists("f")){ dt