similar to: How to copy data from data.frame to matrix

Dear all, I have made couple logistic regressions, what making a distribution of some event. Currently, i store it like this: o1 <- lrm(...) o2 <- lrm(...) o3 <- lrm(...) ... Then, i have made a function to peak required regression object from this variables by it number: get_object <- function(obj_name, nModel) { eval (parse(text=paste("o <- ", obj_name, nModel,

Hello I have a quick question. I need to compute matrix in R, like A <- t(X) %*% solve(V) %*% X, where X is a vector and V is a matrix This code works, but now i want to optimize it. I have try: A <- crossprod(X, solve(V)) %*% X Is there another, better way? WBR Dima [[alternative HTML version deleted]]

Hello All, A simple question. I get some return from the R in my C++ program (via Rcpp package). The result come, as SEXP and it should be a simple numeric variable. How to convert it to double? The code, what i use: stringstream ss; ss << "p <- predict(fit_ar11, n.ahead = 2, doplot=FALSE);" << "p$pred[1]"; SEXP ans; int iRet =

Hello. I have a quick question. I try to use logit regression, to work out probabilities in the sport event. I have work out probabilities for group of 2 players: p1 - probability, what player1 will beat player2 p2 - probability, what player2 will beat player1 pt - tie probability, p1 <- 1 - p1 - p2; Now i want to work out probabilities for group of 3 players, like: pg1 - probability, what

Hello all. I'm using Fedora 14. I have patched my wine yesterday using yum, ane my wine current version is: 1.3.18-1.fc14. After that, some of my programs stop to working. It seems, what something happen with MDAC component, because program can't open mdb file and can not found MDAC component from the console. The errors. what i get: err:ole:CoGetClassObject class

Using the small reproducible example below, I'm wondering how best to complete the following task: In the small reproducible example below, the 3D array prec has indexes that correspond to time, x, y (i.e., prec[time, x, y]). In this case, the time index is hours since some predefined start time. I'd like to add up all the time indexes in 'prec' based on whether or not the

If I want to use fbml elements and rails tags, is there a way to do within a fb:editor? if I do: <% facebook_form_for(:task, at task,:url => create_task_path) do |f| %> Assign Task To: <%= fb_friend_selector %> <%=f.text_field :ttype, :label=> "Title"%> <%=text_field_tag :newrnumdays, ndays, :label => "# Days"%>

Thanks for the reprex. Wouldn't have bothered without it. The following is I believe **almost** what you want. It seems a bit clumsy to me, so others may provide you something neater. But anyway... ## Convert POSIXct vector to dates ## There are 22 different days, not 21 date <- as.Date(prec_idx) ## Sum results by date at each i,j of the last 2 array dimensions z <-

Dear all, I have a problem with the command 'getURL' from the RCurl package, which I have been using to obtain a ftp directory list from the MOD16 (ET, DSI) products, and then to download them. (part of the script by Tomislav Hengl, spatial-analyst). Instead of the list of files (from ftp), I am getting the complete html code. Anyone knows why this might happen? This are the steps i

I run test: test:units lass ProductTest < ActiveSupport::TestCase test "product attributes not be empty" do product = Product.new assert product.invalid? assert product.errors[:title].any? assert product.errors[:description].any? assert product.errors[:price].any? assert product.errors[:image_url].any? end test "price musst be

What does this warning mean precisely? Is there any reason to care about it? Can I Avoid it by another way of programming? Thank you in advance.

Hi everyone, I have been trying to compute numbers of days between two dates as follows: > x <- c("1jan1960", "2jan1960", "31mar1960", "30jul1960") > z <- format(x, "%d%b%Y") > ex <- c("1jan1961", "15jan1960", "21mar1975", "10jul1981") > ez <- format(ex, "%d%b%Y") > ez-z

Dear R-help I am using R version 2.6.2. I am trying to subtract specific values from a larger data frame. I feel this should be straightforward, but I am struggling. I have a dataframe "Bk" as follows: DateTime cumPrecip 01/01/2008 00:00 348 01/01/2008 01:00 348 01/01/2008 02:00 348 01/01/2008 03:00 347 01/01/2008 04:00 348 01/01/2008 05:00 348 01/01/2008 06:00 349

I have a vector of dates. I wish to find the month end date for each. Any suggestions? e.g. For 12/15/05, I want 12/31/05, For 10/15/1995, I want 10/31/1995, etc __________________________________________________ [[alternative HTML version deleted]]

Carlos A. P. Cunha via samba wrote: > For me, is "magic line" > > find $DEST -depth -mtime +$DAYS -print -delete ---- I'm guessing you probably want 'ctime' there. If you use mtime, then it will be deleted "ndays" after the last modification date on the file -- NOT the time the file was moved into the recycle bin. If you use ctime - that

Hi folks, One feature I've wanted in rsync is the ability to delete files that no longer exist in the source *after some specified grace period.* The functionality I'm looking for is a backup system that won't actually delete files until a week or two after the user does. This would: 1. Protect against accidental file deletions; the user would have some time to realize the

Hey, guys. In documentation i read: "By default, files are loaded from public/images". I add for example <%= image_tag "logo.gif" %> When i check html code in browser i see next: <img alt="Logo" src="/assets/public/images/logo.gif">. Why folder assets? The default should have been <img alt="Logo"

Hi all, I have a question regarding the enforced change of passwords in Samba 3.0.28 (coming with Ubuntu Hardy) in connection with a LDAP backend. In particular, I am looking for a documentation how the fields sambaMinPwdAge, sambaMaxPwdAge (from sambaDomain), sambaPwdCanChange and sambaPwdMustChange (from sambaSAMAccount) interact. I would like to have the following: - when a new

Dear , My current samba versiion is samba-4.4.4 and running on centos 7.2 My current samba have recycle enable . I want to age limit for recycle bin . Please kindly let me know any parameter for recycle bin age limit . Best Regards, Si Thu.

Hey! Foe example i have next code: test "should update user" do put :update, id: @user.to_param, user: @input_attributes assert_redirected_to users_path end What return id: @user.to_param? -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group