I think the sum way is the best.
On Fri, Apr 26, 2013 at 9:12 AM, Mikhail Umorin wrote:
> Hello,
>
> I am dealing with numeric vectors 10^5 to 10^6 elements long. The values
> are
> sorted (with duplicates) in the vector (v). I am obtaining the length of
> vectors such as (v < c) or (v > c1 & v
Do you really have the need loading all the data into memory?
Mostly for large data set, people would just read a chunk of it for
developing analysis pipeline, and when that's done, the ready script would
just iterate through the entire data set. For example, the read.table
function has 'nrow' and
Well, to my understanding, you planned to rsync the original compiled
folder from one machine to somewhere on another machine, and work with it.
Then how about create a file link on the second machine for "/usr/lib64/R"?
Or maybe I misunderstand your purpose?
On Thu, Apr 25, 2013 at 5:57 PM, Sapt
I had this weird encoding issue for my Emacs and R environment. Display of
Chinese characters are all good with my .Rprofile setting
Sys.setlocale("LC_ALL","zh_CN.utf-8"); except the echo of input ones.
> linkTexts[5]
font
"使ç¨å¸®å©"
> functionNotExist()
é误: 没æ
I guess your failure of getting two dimensional array may be related to this :
http://www.rforge.net/rJava/news.html
"0.9-0 (under development)
o fixes issues introduced by several new features in the late
0.8 series. Most imporantly .jarray() and .jevalArray() behave
as int
unlist(lapply(1:nrow(ij),function(rowId) { return
(Powermap[i,j]<-Pr(c(ij$i[rowId],ij$j[rowId]),c(PRX,PRY),f)) }))lapply
actually catches each return value of the excuted function.
here your function actually returns nothing if the assignment succeeds.
If your purpose for the call to Pr is jus
> for(i in 1:3) for(j in 1:4) print(ar34Ret(i,j),digits=15)
>Error in print(ar34Ret(i, j), digits = 15) :
> could not find function "ar34Ret"
The way you used
ar34Ret(i, j)
was actually wrong. It should be ar34Ret[i, j], if nothing else wrong.
At 2011-04-25 08:06:51£¬hill0093 wrote:
>I added
you should take a look at the doc of .jarray by input "?.jarray" in the console
and see related examples by "example(.jarray)" in the console.
This is what the doc says, and your issues might be related to it:
'.jevalArray' currently supports only a subset of all possible
array types. R
Well, the call to Java methods should be really simple in rJava.
What you had tried is actually correct, initialize jvm, create an object, then
call method.
For the error you met, maybe you should check .jaddClassPath.
At 2011-04-23 20:58:22£¬hill0093 wrote:
>That's more than I can understand
CTRL+L helps.
2011/4/2 stan zimine
> Hi.
> Googled but did not found the answer for the following little issue.
>
> how to force R gui on windows (maybe a specific setting) to always
> show the last line of output in the window console.
>
>
> My program in R makes measurements every 5 mins in
The documents accompanying the distribution can be a good start.
And a suggestion for searching help on R over Google, use "r-help" as a
basic keyword, coz a single letter of "r" hardly helps you find the desired
topics.
2011/4/2 Wensui Liu
> Good morning, dear listers
>
> I am wondering if you
I dont think JRI can correctly handle plots from R. In my opinion, JRI is
designed mainly for data sending and receiving. Plot issues should be
addressed in Java, if you use R as part of your computing engine.
2011/1/7 ying zhang
> Hi Everyone,
>
>
>
> Thanks a lot for your guys help, I finally
I did a quick search for interfacing R and Fortran. Found this past
information. Hope it helps. :D
http://r.789695.n4.nabble.com/Conerned-about-Interfacing-R-with-Fortran-td887428.html
As for your actual requirement to do the "convertion", I guess there'd not
exist any quick ways. You have to be b
You are talking about dig the data from a dynamic webpage. The data
displayed to you, I guess, is fetched via filtering from certain database.
And the dropdowns you saw in the page must be some sort of widgets to do
these filtering.
Some sites offer this filtering via URL parsing, where the final
Aggreed. R's own way of handling logrithm of a negative number makes
scripting more automatic, which is actually desireable.
To flag any problems that might occur in calculation, do it ahead of using
logrithm or in other similar situations. Try test functions like is.nan(),
is.finite(), or relation
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