similar to: Boxplot by factors

Dear all, I am beginner using R. I have a question about it. When you use it, since it is written by so many authors, how do you know that the results are trustable?(I don't want to affend anyone, also I trust people). But I think this should be a question. Thanks, Ming

Dear all, I am beginner using R. I have a question about it. When you use it, since it is written by so many authors, how do you know that the results are trustable?(I don't want to affend anyone, also I trust people). But I think this should be a question. Thanks, Ming

Hi, I just get a question (sorry if it is a dumb one) and I "phase" my question in the following R codes: group1<-rnorm(n=50, mean=0, sd=1) group2<-rnorm(n=20, mean=1, sd=1.5) group3<-c(group1,group2) Now, if I am given a dataset from group3, what method (discriminant analysis, clustering, maybe) is the best to cluster them by using R. The known info includes: 2 clusters,

Hi, I am looking for a package to do the clustering analysis using the expectation maximization algorithm. Thanks in advance. Ming

Hi all, what a great help list! I hope someone can help me with this puzzle... I'm trying to find a simple way to do: boxplot(obs~factor) so that the factors are ordered left-to-right along the x-axis by median, not alphabetically by factor name. Complicated ways abound, but I'm hoping for a magical one-liner that'll do the trick. Any suggestions would be treasured. Thanks,

Dear all, I am having a data for 2 different treatments with different time points. So, I used the following code to plot the boxplot and also to do anova. T11 <- c(280, 336, 249, 277, 429) T12 <- c(400, 397, 285, 407, 313) T13 <- c(725, 373, 364, 706, 249) T21 <- c(589, 257, 466, 248, 913) T22 <- c(519, 424, 512, 298, 907) T23 <- c(529, 479, 634, 354, 1015) obs <- c(T11,

Hello, I am trying to generate a set of boxplots using ggplot with the following data with 4 columns (Day, Site, VO2, Cruise) AllCorbulaMR Day Site VO2 Cruise 1 1 1 148.43632670 1 2 1 1 61.73864969 1 3 1 1 92.64536096 1 4 1 1 73.35434957 1 5 1 1 69.85568810 1 6 1 1 98.71116866 1 7 1 1 67.57880107

I'm sure I'm missing something obvious in the documentation... I'm generating a boxplot boxplot(CleanValue~ApptCategory*ReportingCode,data=newfile) where ApptCategory is a factor with possible values ("New","Established") Problem is, the output orders those factors alphabetically, and I'd really rather see New come first. I'm apparently confused by the

Hello, I have a data-frame in which one-column is a factor: > str(data); `data.frame': 194 obs. of 8 variables: $ Type : Factor w/ 3 levels "Nuclear-Rec..",..: 1 2 2 2 2 2 2 2 2 2 ... $ Locus : num 0.000571 0.004000 0.001429 0.004857 0.007429 ... And I'd like to make a boxplot of the data$Locus values, where each level of the factor gets its own

I really like the ease of use with the boxplot command in R. I would rather have a boxplot that shows the average value and the standard deviation then the median value and the quartiles. Is there a way to do this? Chad Junkermeier, Graduate Student Dept. of Physics West Virginia University PO Box 6315 210 Hodges Hall Morgantown WV 26506-6315 phone: (304) 293-3442 ext. 1430 fax: (304)

Hi, I noticed two seemingly equivalent call to boxplot will give different plots (in the way how the combined factor levels are arranged on the x-axis): x = factor(rep(c("a", "b", "c"), each=2)); y = rep(factor(c("one", "two")), each=3); r = 3; n = r * 6; x = rep(x, 3); y = rep(y, 3); z = rnorm(n); par(mfrow=c(2,1)); ## The following two

R-help, I'm trying to do a simple box-and-whisker plot to some data. The data are a subset of a large data frame but when running the "boxplot" function on the subset data all the factors are still present in the graph leaving a huge empty space until the actuals factors are shown. This produces a spurious box-and-whisker plot. If the subset data are exported to another R session

First of all, I thanks you all for replying me . I've not asked my question in good terms, so I've made a little drawing of what I want to do in my boxplot : - ) | - - | | | | ---- ---- | | | | | | | 2 |

The issue is not with boxplot, but with split. boxplot.formula() calls boxplot(split(split(mf[[response]], mf[-response]), ...), but look at what split() returns when there are empty levels in the factor: > f <- factor(gl(3, 6), levels=1:5) > y <- rnorm(f) > split(y, f) $"1" [1] 0.4832124 1.1924811 0.3657797 1.7400198 0.5577356 0.9889520 $"2" [1] -1.1296642

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

bonjour, i'm a mathematic teacher and i have a question for R-developers : is it possible to have (in the future) a boxplot with whiskers from the first decile to the ninth decile, as usual in secondary french schools... by example : boxplot(serie,range=-1) for french boxplot ? cordialement, jean-pierre lyc?e jean zay orl?ans, france http://mathazay.free.fr/spip/

Hi The answer to this may be obvious, but it's got me floored. I'm unable to get boxplot.stats to work for me! My session looks something like this: > ia=read.table('/tmp/prueba.csv', header=TRUE, sep=",") > attach(ia) > boxplot.stats(X8weeks~Orden) Error in sort (na.last, decreasing, ...) : argument 1 is not a vector In addition: Warning

I have data I'd like to plot using the formula interface to boxplot. I call boxplot like so: with(mydata, boxplot(count ~ geno * tissue)) I get a boxplot with x axis labels like "wt.kidney". I would like to change the '.' to a newline. Where is this separator configured? Thanks, -Ed

Hi! I am trying to get the tick / label under a stacked boxplot with only a single data row. With >=2 rows it works, but with a single one the tick resp. my class name is not printed below the boxplot. Can anybody point me to what am I doing wrong? For example: boxplot(data.frame(c(3,4,5)),names=list("a"),beside=F) Here, I would like to have the "a" below the single

I am using R 2.2.1 on a Windows 2000 PC. When I do a grid() after the boxplot it overprints the boxplot: > boxplot(count ~ spray, data = InsectSprays, col = "lightgray") > grid(nx=NA, ny=NULL) > if I try the panel.first > boxplot(count ~ spray, data = InsectSprays, col = "lightgray", + panel.first=grid(nx=NA, ny=NULL)) > I can see the grid flash