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FAQ 7.31 strikes again. This is expected: you cannot do exact arithmetic on a binary computer if some of the quantities involved are not binary fractions (e.g. 1.3) See also the warning in ?`==`: identical() is equally inappropiate for computed numerical quantities. On Mon, 8 Sep 2008, kyunseop.bae at gmail.com wrote: > Full_Name: Kyun-Seop Bae > Version: 2.7.2 > OS: MS-Windows XP SP2 > Submission from: (NULL) (148.168.40.4) > > > # Script that I used > > rm(list=objects()) > objects() > > WT <- 91 > AGE <- 41 > SCR <- 1.3 > >...

Full_Name: Kyun-Seop Bae Version: 2.7.2 OS: MS-Windows XP SP2 Submission from: (NULL) (148.168.40.4) # Script that I used rm(list=objects()) objects() WT <- 91 AGE <- 41 SCR <- 1.3 CCL1 <- (140-AGE) * WT / (72 * SCR) CCL2 <- (140-AGE) * WT / 72 / SCR CCL1 CCL2 identical(CCL1, CCL2) identical(...

Thank you for the prompt reply. Do you know why does MS-Excel give result that I expected? Thanks, Kyun-Seop BAE Email: kyunseop.bae at gmail.com -----Original Message----- From: Prof Brian Ripley [mailto:ripley at stats.ox.ac.uk] Sent: Monday, September 08, 2008 1:53 AM To: kyunseop.bae at gmail.com Cc: R-bugs at r-project.org Subject: Re: [Rd] (PR#12742) Different result with different order of...

I have data matrix and I want to replace values. > try Rh.Rj RR.Rj RT.Rj V1 0.08465125 0.19159688 0.617294468 V2 0.74853203 0.88826790 0.113979660 V3 0.68767961 0.17979307 0.013802852 V4 0.31722379 0.25611821 -0.021954454 V5 0.17931687 0.04491838 0.011484522 V6 0.87455663 0.16846121 0.002241211 V7 0.61770029 0.01090132 0.000079900 > try[try > 0.05]<-0 >

Dear R-users, I would like to construct a list of arguments for a function in a format function (list(item1=c("A","B"), item2=c("B","C")), item3=...): The individual vectors in the list are permutations of colnames of a dataframe. The trouble is that I am not able to handle escaping of parentheses correctly. I was trying the following: library(gregmisc)

I have a table with two columns: A 1 A 1 A 2 B 2 C 0 I would like to produce a third column that contains the counts of each unique combination of col1 and col2: A 1 2 A 1 2 A 2 1 B 2 1 C 0 1 How can I do this in R? Thanks in advance ... -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

We just studied randomized block design analysis in my statistics class, and I'm trying to learn how to do them in R. I'm trying to duplicate a case study example from my textbook [1]: > # Case Study 13.2.1, page 778 > cd <- c(8, 11, 9, 16, 24) > dp <- c(2, 1, 12, 11, 19) > lm <- c(-2, 0, 6, 2, 11) > table <- data.frame(Block=LETTERS[1:5], "Score

Hello, I'm new using R and developing tables. I have a problem in developing a table. In a questionaire I made I ask this question "Please tell me the first three sympthoms caused by Respiratory tract infection you've caught this year", then the people answer three sympthoms, the first mention (Top of mind) is saved in a variable called "P2_A", the second mention in