similar to: Remote extensions call drops after 20 seconds.

Hi; Does anyone know how to create a calibration and validation set from a particular dataset? I have a dataframe with nearly 20,000 rows! and I would like to select (randomly) a subset from the original dataset (...I found how to do that) to use as calibration set. However, I don't know how to remove this "calibration" set from the original dataframe in order to get my

hi everybody... I have a form_for in that, onclicking submit button i am calling a javascript for validation.If validation fails that form_for doesnt do anything.But even the validation fails it goes to the controller and action. here my code: <%form_for :promotion_code,

Dear R-users A basic question that I wasn't able to solve: Is it possible to get the results of the function 'quantile' expressed as data.frame? What I'm doing is to apply the following code to get the quantiles in a particular dataset: tmp<-tapply(data$DEN,list(Age=data$AGE,Sex=data$SEX),quantile) and then I save this output to HTML using the

I''m trying to set up a traffic control on ingress attaching a egress qdisc to the ifb device. The idea is to use a RED algorithm instead of policing the incoming traffic. After trying with tc-red and not obtaining the expected results, I decided to try with something easier, and use htb as bottleneck: ifconfig ifb0 up tc qdisc del dev $dev ingress tc qdisc del dev ifb0 root tc qdisc add

I''m trying to build a QoS system that would divide the outgoing traffic into four categories, each one also subdivided into two more categories. For that I chose a htb root qdisc subdivided into four classes, each of these classes contains also a htb qdisc. Until these point everything goes well, but when I try to attach a new class to the leaf htb qdisc a problem with the sintaxis

First, many thanks to Frank Harrell for once again helping me out. This actually relates to the next point, which is my contribution to the 'why don't social scientists use R' discussion. I am a hybrid social scientist(child psychiatrist) who trained on SPSS. Many of my difficulties in coming to terms with R have been to do with trying to apply the logic underlying SPSS, with dire

Hola, otra vez a vueltas con los UTF8, seguro que es un tema sempiterno de esta lista y que ya se ha contestado, regannadme por ello (y por escribir sin acentos). Genero un .rda en unix con el system default UTF8 y me lo traigo a un windows. Tengo el Rstudio en windows configurado con Global Options > Default text encoding UTF8. Cargo el .rda con load y nada, los acentos a la porra. Vamos, que

Dear R users; I'm looking for some hint about how to deal with the following situation: Response = Y Factor A = levels: 0, 1 Factor B = levels: 0, 1 Factor C = levels: 1,2,3,4 Model: Logistic 3-parms. where th1~1+A+C, th2~1+C; th3~1 For 'simplicity' (for me) I'm using the SAS contrast parameterization. The output looks like Beta p-value th1.(Intercept) 550