similar to: browser() question

My friend sent an Excel file: http://msemac.redwoods.edu/~darnold/temp/cyu01_iqscores.xls http://msemac.redwoods.edu/~darnold/temp/cyu01_iqscores.xls I opened it in Excel, saved is as cyu01_iqscores.csv, then imported it into R with: iqscores=read.csv('cyu01_iqscores.csv',header=TRUE) The result was: > head(iqscores) IQ.Scores X 1 145 NA 2 101 NA 3 123 NA 4

All, Is this typical of how people will print a summary of results? CoinTosses <- function(n) { x <- sample(c(0,1), n, replace=TRUE) y <- x y[y==0] <- "T" y[y==1] <- "H" numHeads <- sum(x) numTails <- n-sum(x) p <- numHeads/n cat(cat(y,sep=""),"\n") cat("Number of heads: ", numHeads, "\n")

All, I believe I am running the latest version of rshape2 (1.2.1). But this code: library(reshape2) tmp <- melt(smiths, id.vars=1:2, measure.vars=c("age","weight","height"), variable.name="myvars", value.name="myvals" ) names(tmp) Produces this output: > names(tmp) [1] "subject" "time"

Hi, I am encountering a difficulty I don't understand. Be patient, I'm very new to analysis of variance. If I load this data: example12_7=read.table("http://msemac.redwoods.edu/~darnold/math15/data/chapter12/example12_7.dat",header=TRUE) The run the oneway.test: oneway.test(time~drug,data=example12_7,var.equal=TRUE) I get these results: data: time and drug F = 4.1881, num

Hi, I'm looking for some ideas on how to reproduce the attached image in R. There are three samples, each of size n = 10. The first is drawn from a normal distribution with mean 60 and standard deviation 3. The second is drawn from a normal distribution with mean 65 and standard deviation 3. The third is drawn from a normal distribution with mean 70 and standard deviation 3.

Hi, Can someone explain this: > options(digits=20) > 1/3 [1] 0.33333333333333331483 Why the 1483 at the end? Thanks, David. david-arnolds-macbook-pro-2:~ darnold$ R --version R version 2.15.2 (2012-10-26) -- "Trick or Treat" Copyright (C) 2012 The R Foundation for Statistical Computing ISBN 3-900051-07-0 Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit) -- View this

Hi, Typical things you read when new to stats are cautions about using a t-statistic when comparing independent samples. You are steered toward a pooled test or welch's approximation of the degrees of freedom in order to make the distribution a t-distribution. However, most texts give no information why you have to do this. So I thought I try a little experiment which is outlined here.

Hi, Entering data from a given file is the hardest part of learning R for me. For example, I have this datafile from Moore's text: Live Age Count Parents Age19 324 Another Age19 37 OwnPlace Age19 116 Group Age19 58 Other Age19 5 Parents Age20 378 Another Age20 47 OwnPlace Age20 279 Group Age20 60 Other Age20 2 Parents Age21 337 Another Age21 40 OwnPlace Age21 372 Group Age21 49 Other Age21 3

Hi, I managed to use the attached data set and figure out the following: flies <- read.table("example12_1.dat",header=TRUE,sep="\t") boxplot(long ~ group, data = flies, horizontal = TRUE, col = "red") I'm very new to R and would like some help with the following: 1. Change the order on the y-axis from 1, 2, 3, 4, 5 to 5, 4, 3, 2, 1.

All, 1. Is there a command that tells you what libraries are loaded? 2. How do you remove a library that has been loaded? 3. If you have loaded a library that masks previously loaded objects, how can you tell which object is being run? In Matlab, I would run "which f" to determine the location of the file f that will be run. Is there a similar procedure in R? David. -- View this

All, Can someone explain why this does not print the contents of x when I source this file? CoinTosses <- function(n,print=TRUE) { x <- sample(c(0,1), n, replace=TRUE) y <- x y[y==0] <- "T" y[y==1] <- "H" p <- sum(x)/n p } x <- CoinTosses(40) x On the other hand, if I source this file: CoinTosses <- function(n,print=TRUE) { x <-

Hi, I hope that folks can give me some simple approaches to taking the data set below, which is accumulated in two columns called "long" and "group", then arrange the data is the "long" column into a data frame containing five variables: "Group 1", "Group 2", "Group 3", "Group 4", and "Group 5". I am hoping for a few

Hi I had upgraed my opneldap rpm frm 2.3.27 to 2.4.11 with ehelp of the followng link http://staff.osuosl.org/~jeff/openldap/ I had then rebooted my machine and now whne i am starting ldap [root at system-test40 ldap]# /etc/init.d/ldap start Checking configuration files for slapd: bdb_db_open: database "o=netserv_ldap": unclean shutdown detected; attempting recovery. bdb_db_open:

Hi, We were wondering how we could make a stacked frequency diagram such as this one: http://msemac.redwoods.edu/~darnold/math15/liz.pdf We don't necessarily need the shaded "balls", other characters would be fine, such as stacks of x's. David

All, Consider: BagA <- c(-1000,10,10,10,10,10,10, 10,20,20,20,20,20,20,30, 30,40,40,50,60) BagB <- c(10,20,30,30,40,40,50,50, 50,50,50,50,60,60,60,60, 60,60,60,1000) layout(c(2,1)) barplot(table(BagB)) barplot(table(BagA)) At this point, I'd like to arrange the plots so that the 10-bars are aligned, the 20-bars are aligned, etc. So, I started

I have configured my rcyncd.conf file and it is stored in /etc. Whne I type in the command rsync --daemon, nothing happens. Whats wrong? I type in netstat to see if I can see port 873 being used but there is nothing. Here is my conf file log file = /var/log/rsyncd.log [home] path = /vmfs/Storage comment = My Home Area list = yes read only = no I am new to linux and rsync. Using

We have newly installed ADSL/speedTouch 510 modem. After the installation, we are getting problems with out Win2K machines. On out NT workstation everything is OK, but on the Win2K we are getting following error, "The semaphore timeout period has expired" whne trying to connect to the domain (GARAGET), My Network Places Entire network MS Windows Network Garaget (our

All, If you have any good links for sites that contain data sets that can easily be accessed and copied (or downloaded) by students in introductory statistics, could you please share them? Thanks. David -- View this message in context: http://r.789695.n4.nabble.com/Data-sets-online-for-student-use-tp4658326.html Sent from the R help mailing list archive at Nabble.com.

Hi, As already mentioned, this is a great topic for R-sig-geo, where you'd probably get specialist answers like the lake morphology package https://cran.r-project.org/web/packages/lakemorpho/index.html which is explicitly designed for this kind of question. Sarah On Tue, Dec 5, 2023 at 11:13?PM javad bayat <j.bayat194 at gmail.com> wrote: > > Dear all; > I am trying to

Hi, Reading about a "Heads and Tails" game in http://www.dartmouth.edu/~chance/teaching_aids/books_articles/probability_book/amsbook.mac.pdf Introduction to Probability (Example 1.4, pp. 5-8). You toss a coin 40 times. If heads, Peter wins $1, tails, he loses $1. I think I can do that ok with: winnings <- sum(sample(c(-1,1), 40, replace=TRUE)) But I have to do it 10,000 times