similar to: problem with bulk insert into a *.csv file

Hi all, I got one intresting problem with caliculating mean that is while i am taking mean of values *0.6, -0.8, 4, -3.8* using *val<-c(0.6, -0.8, 4, -3.8)* *mean(val)* it given result as *2.775558e-17* but the actual result is *"0"* can any one suggest how can I get correct mean result in this case can any one suggest how I can farward thanks in regards kiran [[alternative

Hi all, I am trying to parse a vector for caliculating minimum in that vector the vector having values like 1 Kontrolle 2 Placebo 3 125mg/kg 4 250mg/kg 5 500mg/kg 6 1000mg/kg hear i tries for comverting it into numeric with using "as.numaric()" function but i got values like 5 6 2 3 4 1 it gives 1000mg/kg is the least one but i have

Hi all, I am strugling with date formates and caliculating diferent operations like different between 2 dates and getting minimum in vector of dates that is i m working with dates in formate "6/22/1992 12:00:00 AM" and the vector is [1] 6/4/1992 12:00:00 AM 2/13/1992 12:00:00 AM 6/19/1992 12:00:00 AM [4] 2/11/1992 12:00:00 AM 6/22/1992 12:00:00 AM 10/3/1991

Hi all, I got a problem with appending data into the *.csv file like abc<-read.csv("bbb.csv") # reading data from one csv file abc1<-mean(subset(abc,Group=="A")) hear i have to creat a .csv file and in that i have to create column's with names *group, mean* and farther i have to caliculate for Groups:-A, B, C, D, F and i have to append data to consicutive rows of

Hi all, I read data from *.xls file and i did some caliculations on that data and now i have to create a column in the same .xls file and i have to insert the data in to the consicutive rows related to the previous data i tried it with *write.xls() *but the thing is it deleted all the columns previously presented in that file and it created a column and inserted data can any one suggest what to do

Hi guys, I have a habtm association working properly. My application consists of both a desktop and a mobile version. My mobile version is made with jquerymobile and I would like my checkboxes in the edit form to look like the checkboxes shown in http://jquerymobile.com/demos/1.0a4.1/#docs/forms/forms-checkboxes.html. My desktop code is the following: <%= check_box_tag

OK this is bound to be something silly as I'm completely new to R - having started using it yesterday. However I am already warming to its lack of 'proper' GUI... I like being able to rerun a command by editing one parameter easily... try and do that in a Excel Chart Wizzard! I eventually want to use it to analyse some chemotherapy response / survival data. That data will not be

Hi all, I have a problem with checking File is present in the directory or not like I have a sequence of files in one folder I have to take each file in order and have to caliculate on those files data but in order some files are missing for that I have to check and load those files for that I am using condition like if(file.exists(findings)==TRUE){} its giving results for files which are

Folks I'm sure the Centos team has done a yeoman's job getting Centos7 ready, and that the Redhat team has done marvels in creating rhel7, but here's a little voice from a personal hobbyist user. Background: ('ve been maintaining several remote servers since Redhat 6 days, migrating from that to Whitebox, then Centos, and things have been running as expected including the

Dear R users, I am trying to do exact matching on a large dataset (500.000 obs), about equal size of treatment and controll group, with replacement: As for the moment I use the "Match" function of the "Matching" library. I match on 2 covariates and all observations in the treatment group have at least one exact counterpart in the controllgroup. Now I want to introduce

Hi all, I got a problem with * "toString()"* function its behaving odd in some times most of the times its giving correct results but in peculier cases its giving results like *"愭]"* especially while i am working with c# +R-project thats also after getting some error like after trying to caliculate "*mean("NA")" * can any one help me why its

Hello, I have a question as to how the syntax for glht(package multcomp) and estimable (gmodels) works, since I'm not getting everything from the documents I've googled so far, especially with models with 2nd order terms. A modestly complex model: 2-way anova with one continuous covariate, no random effects(and no repeated measures) to keep it modestly complex: Y = treatmentgroup + sex

Guys, How can we provide bulk sms and bulk email functionality in a merb application. Can you help me in this issue...

Hi all, I tried to read data from Excel spread sheet with using read.csv(file.choose()) and read.delim(file.choose()) but its showing " *ÐÏ.à.*." and also i tried with read.table(file.choose()) then its showing " * V1 1 ÐÏ\021ࡱ* " can any one suggest how to read data from Excel Spread sheet

As part of my application I calculate/generate a fair chunk of data, and I then stick the reults into the database (mysql). This takes the form of a single "INSERT INTO foo(...) VALUES(...) " statement that is approx ~500k The dats itself consists of pairs of integers. If I dump the query string to disk and paste it into the query browser and run it then execution is <1 second. If

Hi, This code loops through my results and saves them : @results.each{|r| r.save} There are potentially thousands of results. This takes ages to complete. Is there a quicker way to do this? Any help is greately appreciated Thanks Chris -- Posted via http://www.ruby-forum.com/.

I am using Postfix as my mail handler. When I have ActionMailer deliver a large number of emails, it takes a while. It seems that in my Rails process, ActionMailer waits for Postfix to actually send each message before returning and moving on. Is there a way to configure either ActionMailer or Postfix to speed the sending of bulk mails, perhaps by having ActionMailer just submit the mail to a

Hello! Attached is a method to bulk add arrays to a list box, when the array isn''t a string array. Feel free to add it to wxSugar. Example: arr = [[Wx::RED, "Red"],[Wx::GREEN, "Green"],[Wx::BLUE, "Blue"]] listbox.insert_obj_items(arr, "[1]") ...would add 3 list box items with "Red"-"Green"-"Blue"

To give fast web browsing on my network, I prioritise http traffic by marking it all into a high priority band (''30''). This generally works quite well, as unidentified traffic such as p2p falls by default into a lower priority band (''40''). However, I would like to de-prioritise anyone doing large downloads over http, which currently get high priority. Is there

Hi, I have a question reading using RMySQL trying to load one R vector into a table column. To be more specifically, the table is there populated. Now I add a new column and want to populate this. Can some colleagues on this list teach me how to do this? I know how to write one R object/table into MYSQL table using dbWriteTable. But in this situation, I just want to do one column. Thanks