similar to: Can I use a simple linear regression in this situation

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HI, You may try this: dat1<- read.table(text=" CustID TripDate Store Bread Butter Milk Eggs 1 2-Jan-12 a 2 0 2 1 1 6-Jan-12 c 0 3 3 0 1 9-Jan-12 a 3 3 0 0 1 31-Mar-13 a 3 0 0 0 2 31-Aug-12 a 0 3 3 0 2 24-Sep-12 a 3 3 0 0 2 25-Sep-12 b 3 0 0 0 ",sep="",header=TRUE,stringsAsFactors=FALSE) dat2<- dat1[,-c(1:3)] res<- lapply(seq_len(ncol(dat2)),function(i)

Hi list, I have a question regarding post-hoc extraction of data from a two-way categorical anova. I have a categorical anova of this form: width ~ steepness + patchiness (4 steepness levels, 4 patchiness levels) This simple setup answers if for the widths I collected across different levels of steepness and patchiness significant differences can be found. Is there a way to look at these

Hi, I'm trying to make a boxplot with the data at the end of the message, and when I try to execute the command >boxplot(Diatoms) (or for any other field instead of "Diatoms") I get the following error message: Error in oldClass(stats) <- cl : adding class "factor" to an invalid object Any advice would be much appreciated. Thanks a lot, Miriam Date

So I am very new to R. Have been using python for a project and need to calculate the correlation coefficient matrix for my data set. the data is in the range of 10-15 observations of 230,000 variables. ie the correlation matrix would be 230,000X230,000 Using python and the numpy.corrcoef() I run out of memory if I try to do this with more than ~30,000 variables. I was able to load the data into

Dear Friends, I have data set with around 220,000 rows and 17 columns. One of the columns is an id variable which is grouped from 1000 through 9000. I need to perform the following operations. 1) Remove all the observations with id's between 6000 and 6999 I tried using this method. remdat1 <- subset(data, ID<6000) remdat2 <- subset(data, ID>=7000) donedat <- rbind(remdat1,

Hi all, While build a rpm from the httpd-2.2.6 sources (spec file included in the source package), i had a situation where packaging would fail at the step where several link are created for "logs" etc directories. <<..snip from httpd.spec...>> # symlinks for /etc/httpd ln -s ../..%{_localstatedir}/log/httpd $RPM_BUILD_ROOT/etc/httpd/logs ln -s ../..%{_localstatedir}/run

Table articles has column: author,body,etc Table users has column: login_name,email,etc articles belongs_to user users has many articles foreign_key author references users(login_name) Therefore in Article.rb: belongs_to:article_user, :class_name=>"User", :foreign_key=>"author" and what''s going on? how the rails find the reference

Suppose: class articles < ActiveRecord::Base has_many :assistarticles validates_presence_of :body end class assistarticles < ActiveRecord::Base belongs_to :article validates_presence_of :detail end In the submit form: <%= text_field ''article'', ''body'' %> <%= text_field ''assistarticle'', ''detail''

Hi, this is my first mail to the list, I''m no speak English, but i try my best. this situation attack my attention since i first er about it, but i still don''t have a good solution. There are 2 different networks whit different connection to the internet each one whit their servers (lets call it A and B to each server). it is need to mount some kind of service (webserver for

Hello Can the linux kernel detect interface up line protocol down situations? Is there a object tracking feature in iproute ? ex: interface, route (next-hop down) etc... How about with sync serial cards running hdlc/ppp? This will have to be a part kernel feature and part device driver one I guess... (device data structure will have to provide flag.. i.e) -- Nonchalantly yours GobbledeGeek

Hi I have absolutely no idea what does it means : --------------------- Kernel Begin ------------------------ WARNING: Kernel Errors Present Buffer I/O error on device sr0, l ...: 16932 Time(s) end_request: I/O error, dev sr0, sector ...: 16962 Time(s) ---------------------- Kernel End ------------------------- I am getting this all the time a lot of times as you

Hi all, I scourged the web, including this ML''s archives, and did not find an answer for this. I have the following code in my Rails app: require ''iconv'' ... @@converter = Iconv.new(''ASCII//TRANSLIT'', ''UTF-8'') ... result = @@converter.iconv(text.to_s).downcase ... Now, the facts: * Inbound text is indeed valid

everyone Here: How do you do! dtrace is interesting. I am studing how to write dtrace script and analyze situation. I read dtrace_example.pdf and 819-6959.pdf document more than five times with careful. because I am newbie to studing dtrace.so I still don''t know how to begin. for question: 1. What consumes time? 2. Which system call(s) consume(s) time?

Hello, I am facing a strange situation: I have downloaded the sources with git, configure and compiled (Samba Version 4.1.0pre1-GIT-76fa5ee) just like in the HowTo doc, here: https://wiki.samba.org/index.php/Samba4/HOWTO All the tests were ok. I am using internal DNS of Samba4. I have successfully added one XP machine to the domain controlled by samba server. On this XP system I have

I''m creating a hierarchical tag structure for my portfolio. I have a few top level tags. those could then have children, those children could then have children. Pretty standard so far. Often a child tag will be under more than one parent (i.e. a child might belong toone or more parents) and it wouldn''t necessarily have the same children under one parent as it would in another.

Hi all guys!im new in rails! i have a forum,have_many topics,and the topic also has_many replies.Now i want to write the respec for the repliescontroller: describe RepliesController do controller_name :repies describe "All Requests",:share=>true do before do @forum = mock_model(Forum,:id=>''1'') @topic =

OpenCL defines half data type, and it seems clang accepts this and generates code for it. The backend support for operations with fp16 seems to be missing and it works (or should work?) by converting these to fp32 for the actual calculations? But I'm having problems with this. first I just tried to use fp16 data type, without any support in backend. This was expected to fail. I got

Hi all Now I'm making IVR sequance that is customised [mainmanu]. I wish to notify invaid command like a following exten => i,1,playback('your command is ...') exten => i,2,playback(${EXTEN}) ; <---- Say 'i' oops! ;-( exten => i,3,playback(' is incorrect! please again ') # This exten lines are figure for instruction. # I know to use with gsm filename.

Hi all, I have looked through the wiki for any information on how to make an extension autodial another extension when it goes off hook. Anyone done this or know how it's done. regards Dave