search for: yogurt

Dear r helpers I run the following code for nested logit and got a message that Error in optim(c(0, 0, 0, 0, 0.1, -2, -0.2), fr, hessian = TRUE, method = "BFGS") : initial value in 'vmmin' is not finite What does this mean? and how can I correct it? Thank you June > yogurt = read.table("yogurtnp.csv", header=F,sep=",")> attach(yogurt)> dim(yogurt)[1] 12784 25> choice = yogurt[,2:5]> price=yogurt[,14:17]> feature=yogurt[,6:9]> n = nrow(yogurt)> constant = rep(1,each=n)> yop=cbind(constant,feature[,1],price[,1])> dan=cb...

...art = start, : NA in the initial gradient > p = summary(maxLik(fr,start=c(0,0,0,1,0,-25,-0.2),method="BFGS")) Error in optim(start, func, gr = gradient, control = control, method = "BFGS", : initial value in 'vmmin' is not finite The codes are as follows yogurt = read.table("yogurtnp.csv", header=F,sep=",") attach(yogurt) dim(yogurt) choice = yogurt[,2:5] price=yogurt[,14:17] feature=yogurt[,6:9] n = nrow(yogurt) constant = rep(1,n) yop=cbind(constant,feature[,1],price[,1]) dan=cbind(constant,feature[,2],price[,2]) hil=cbind(constant,f...

Hello all - I am sorry if this simple question is addressed in somewhere else. But, I couldn't find it. It's been for about a week using R. . . My problem is: Reading matrix data with "scan" does not seem to allow me to incorporate matrix labels (columns, and rows). If I use read.table, I can import the lables. But, the problem is, I don't know how I make this data as

Hi, folks, Please first look at the codes: plan_a=c('apple','orange','apple','apple','pear','bread') plan_b=c('bread','bread','orange','bread','bread','yogurt') value=1:6 data=data.frame(plan_a,plan_b,value) library(plyr) library(reshape) mm=melt(data, id=c('plan_a','plan_b')) sum_plan_a=cast(mm,plan_a~variable,sum) ### I would like to add a new column to the data.frame named 'data', with the same sum of value for the same t...

Hi All, I've been having a little trouble with creating a loop that will run a a series of t.tests for inspection, Below is the code i've tried, and some checks i've looked at. I've used the get(paste()) idea as i was told previously that the use of the eval should try and be avoided. I've run a single syntax to check that my systax is correct and works without any problems

Recent SUP. Installed on Dell PowerEdge 4600. Getting tons of: Sep 30 12:23:16 zige /kernel: bge0: gigabit link up Sep 30 12:23:46 zige last message repeated 98 times Also getting some TCP retransmits. This causes noticable delays in pretty much everything I do now. Not a problem prior to the SUP. I was on 4.8-STABLE before. When pulling/replacing cables, it went into a mode where it would

...e/config.h lib/Makefile man/Makefile server/Makefile /Nikke -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Niklas Edmundsson, Admin @ {acc,hpc2n}.umu.se | nikke@acc.umu.se --------------------------------------------------------------------------- Eat yogurt and get cultured =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

...ce. This year we are catering to your every desire. In addition to the customary luxuries you have come to expect at LSRC, like the awesome food or the power strips at every table for your hungry laptops, this year you will also be greeted with: * the new conference center sound system. * bagels, yogurt, fruit and donuts for every breakfast * sodas for the morning break! * extra wifi access points * 15/2 internet service * 100 extra seats designed to be more comfy for your...you know * and did I mention sodas in the AM? You betcha. It''s going to be a great conference. Come to learn more...

On Fri, Feb 27, 2015 at 2:59 PM, Chris Murphy <lists at colorremedies.com> wrote: > On Fri, Feb 27, 2015 at 1:53 PM, Robert Arkiletian <robark at gmail.com> > wrote: > > Still have good quality older sata hardware raid cards that require 512 > > bytes/sector. As far as I know HD manufacturers are not making native 512 > > bytes/sector drives any more. > >