Re: [R] Avoiding for loops

If this code is slow it is not because you are using loops, but because you are dynamically building your vectors and lists and their size needs to change with each iteration causing significant unnecessary computational overhead. If you simply do something like d <- numeric(m-1) for (i in

Re: [R] Avoiding for loops

> On 25 Oct 2015, at 11:42, Maram SAlem wrote: > > Hi All, > > I wonder if I can avoid the for() loop in any of the following loops.These > loops are a part of a larger code which I'm trying to accelerate. > > n=6 > m=4 > x<-c(0,1,1) > > 1st loop > > for (i in

[R] Avoiding for loops

Hi All, I wonder if I can avoid the for() loop in any of the following loops.These loops are a part of a larger code which I'm trying to accelerate. n=6 m=4 x<-c(0,1,1) 1st loop for (i in 1:m-1) { d[i]<- n- (sum(x[(1):(i)])) - i } e<- n*(prod(d)) 2nd loop LD<-list() for (i

Re: [R] Avoiding for loops

Thanks a lot Boris and Berend. I'll consider the brackets ((m-1) in every loop). In addition, I'll read more on profiling my code. In fact,I'm using the apply () in another part of my code. Thanks again for helping. Maram Salem On 25 October 2015 at 14:26, Berend Hasselman

Re: [R] Avoiding for loops

Sorry - I just noticed you actually have an error in your code: you had parentheses everywhere they were not needed and I overlooked you had not put them where they actually are needed. It has to be for (i in 1:(m-1)) ..., not as you wrote. I'm sure you'll understand the difference. d <-

Re: [R] How to plott bar graphics

Dear Ujjwal Two problems 1 - you posted in HTML so your post is unreadable 2 - your attached graphic was not in one of the formats which R-help accepts and so was stripped On 25/10/2015 11:04, Ujjwal Kumar wrote: HI friends I am struggling in plotting bar graph with this data sets in R.

Re: [R] Add sequence numbers to lines with the same ID: How can this be accomplished?

Yay Chuck! Boo Bert. -- Bert Bert Gunter "Data is not information. Information is not knowledge. And knowledge is certainly not wisdom." -- Clifford Stoll On Sat, Oct 24, 2015 at 9:05 PM, Charles C. Berry wrote: > On Sat, 24 Oct 2015, Bert Gunter wrote: > >> Rolf's

[R] How to plott bar graphics

HI friends I am struggling in plotting bar graph with this data sets in R. although I can plot it in Microsoft excel( attached graphics). I need help in coding it for R.(SE=standar error) > >data > habitat > proportion_use > proportion_use_SE > selectivity_index > selectivity_index_SE > grassland

Re: [R] [FORGED] Re: How to correct documentation?

Yes. Too cute, maybe? -- Bert Bert Gunter "Data is not information. Information is not knowledge. And knowledge is certainly not wisdom." -- Clifford Stoll On Sat, Oct 24, 2015 at 9:57 PM, Rolf Turner wrote: > On 25/10/15 17:14, John Sorkin wrote: >> >> Bert

Re: [R] [FORGED] Re: How to correct documentation?

Ming is right. I can't imagine other discipline's standards are substantially different from ours, but e.g. the ACS style manual is very explicit to require ... "Label each axis with the parameter or variable being measured and the units of measure in parentheses." The _units_ are not

Re: [R] Time it takes to run a code

It may be useful for you to estimate the time complexity of your function: try it with smaller input that takes short and noticeable time, see whether the time increases linearly, quadratically, or exponentially with the number of elements you process, then extrapolate to your full data set.

Re: [R] Having trouble updating and installing R 3.2.1 and 3.2.2

I would guess that you ran R as administrator at some point and now you have a permissions problem on your user library. I can't say I know how to fix it, though using administrator mode to fix the permissions is probably hard while using administrator mode to delete the R directory and

Re: [R] Krippendorff's alpha bootstrapping implementation

Hi Oscar, I would be overjoyed if someone has translated the SPSS or SAS code provided by Andrew Hayes: http://www.afhayes.com/spss-sas-and-mplus-macros-and-code.html scroll down to KALPHA and go for it. If you succeed, let: Matthias Gamer the maintainer of the irr

Re: [R] [FORGED] Re: How to correct documentation?

Dear all, As to stating units in graphs: IMHO it should be as follows: If an axis reads 0 ... 10 ... 20 ... etc and the unit is pounds (lb), the legend should read "weight/lb" (pronounced "weight in pound"). The logic is: 10 lb/lb = 10. In orther words, dividing a dimensioned number by the

[R] Having trouble updating and installing R 3.2.1 and 3.2.2

I get the following error: Warning message: In normalizePath(path.expand(path), winslash, mustWork) : path[1]="C:\Users\Administrator\My Documents/R/win-library/3.2": Access is denied This may be the first time that I have tried to upgrade R since I upgraded my Windows installation (on

Re: [R] Modifying graphs in 'survrec' package

As answered here: http://stackoverflow.com/a/1444/1457051 palette(c("red", "blue", "orange")) par(lty=3) plot(fit,ylim=c(0,1),xlim=c(0,2000)) though, as indicated in that post, you'll need to customize the survrec:::plot.survfitr function to do more detailed customization. On

[R] Krippendorff's alpha bootstrapping implementation

Hi Polina and Jim, Have you been able to implement the correct bootstrapping of Krippendorff's alpha? Kind Regards, Oscar [[alternative HTML version deleted]] __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see

[R] y2z question (AGD)

Hi to all. I've been trying to calculate weight-for-age z-scores with the y2z command (AGD package). However, I keep getting strange results. My hypothesis is that missings are the problem. My dataframe looks like this: data <- structure(list(sex = structure(c(3L, 3L, 3L, 2L, 3L), .Label =

[R] Modifying graphs in 'survrec' package

Dear all, I am new to R and I am using the package 'survrec'. I would like to modify the colors and lines in graphs with multiple groups. The package includes this example: data(colon) fit<-survfitr(Survr(hc,time,event)~as.factor(dukes),data=colon,type="pena") Using the arguments "col" or "lty"

Re: [R] y2z question (AGD)

It looks like the y2z() function strips NA's so that the vector lengths do not match any longer. The simplest workaround is to remove the NA's. You could do that by using data2 <- na.omit(data) to strip the observations with NA if they will not be used in the rest of the analysis. If you want

[R] Time it takes to run a code

Hi All, I'm using a function, say func, and I want to apply it to all the rows of a certain matrix. The problem is that my code kept on running for more than two days without giving any output. I've made some modifications.But is there a way to know the time needed to execute my code and reach an

Re: [R] JSONlite import problem

Hi, thanks to Duncan and Jeroen to quick replies. I was actually my thinking error :) I suppoed 'fromJSON' to cope with a multi-line file or a list, but this seems not to be the case. So I first read the file with 'readLines' into a list and processed all items with 'fromJSON' within a

Re: [R] [FORGED] Re: How to correct documentation?

> On 25 Oct 2015, at 14:37 , Bert Gunter wrote: > > Yes. Too cute, maybe? > ...as in "charming" or... Oh. ;-) pd > -- Bert > Bert Gunter > > "Data is not information. Information is not knowledge. And knowledge > is certainly not wisdom." > -- Clifford Stoll