similar to: Sorting a data set

I need help writing function that takes three categorical inputs and returns a vector of summary statistics based on these inputs. The data set contains information on retail goods that can be specified by their retail segment, brand name, and type of good along with its retail price and what it actually sold for. I need to write a function that will take these inputs and average, count, and

Hi, I am new to R and trying to migrate from SAS. I am trying to use sqldf to create a new table from existed table and change some of the columns. I have table called DataOld with columns commodity, rate and total and I am trying to create new table called DataNew with columns commodity, ratenew and totalNew. > sqldf("create table datanew as select commodity, ratenew as rate * 10, >

I am very new to R and I basically used SPSS to do my model selection, which I had used generalized linear model. So my best model is P= D + T + L + T*L and there is a parameters table from the SPSS output which I suppose I have to use the coefficients (column B) in the table (as attached) when I draw my graph in R. I want to draw a graph in R which x-axis is D, using the model and the relevant

Hi, ?In the example you provided, it looks like the dates in Date2 happens first.? So, I changed it a bit.? DataA<- read.table(text=" ID,Status,Date1,Date2 ??? ??? ?????? 1,A,3-Feb-01,15-May-01 ??? ??? 1,B,15-May-01,16-May-01 ??? ??? 1,A,16-May-01,3-Sep-01 ??? ??? ??? ??? ??? 1,B,3-Sep-01,13-Sep-01 ??? ??? ??? ??? ??? 1,C,13-Sep-01,26-Feb-04 ??? ??? ??? ??? ???

Hi every one, I have a text file like this: 1    4   4    1    6    23 1   4    2    2    3    28 1    4    5    1    2    24 1    2    3    1    1    24 1   2    3    1    2     40 1   2   3    1    4      22 I want to separate columns by comma, like this: 1,4,4,1,6,23 1,4,2,2,3,28 1,4,5,1,2,24 1,2,3,1,1,24 1,2,3,1,2,40 1,2,3,1,4,22   I used this code:

I just need to confirm something with pattern matching folks. I have a factor with the following levels in a very large data set: > levels(all$Classical.Statistic) [1] "" "AB;ABD" "CollapsedSteps" "CR_P" "CR_Prop;CR_P;AB" [6] "NMK"

Hi, I want to remove all punctuation characters in a string. I was trying it use a regular expressions but it doesn't work. Here is a sample os what i want: str <- 'ABD - remove de punct, and dot characters.' str <- gsub('[:punct:]','',str) str "'ABD remove de punct and dot characters" is there any function that do this kind of thing? Thanks to

Dear list, I have been searching for a week to fit a simple linear model to my data. I have looked into the previous posts but I haven't found anything relevant to my problem. I guess it is something simple...I just cannot see it. I have the following data frame, named "data", which is a subset of a microarray experiment. The columns are the samples and the rows are the probes. I

I am sorry, I'd like to split my column ("names") such that all the beginning of a string ("X..") is gone and only the rest of the text is left. x<-data.frame(names=c("X..aba","X..abb","X..abc","X..abd")) x$names<-as.character(x$names) (x) str(x) Can't figure out how to apply strsplit in this situation - without using a

Dear All, How can I sort a data frame (using one of the column)? Thanks for your support. Regards. Abd. Rahman Kassim (PhD) Head Forest Ecology Branch Forest Management & Ecology Program Forestry and Conservation Division Forest Research Institute Malaysia Kepong 52109 Selangor, Malaysia ***************************************** Checked by TrendMicro Interscan Messaging Security. For any

Dear All, Need some help in polynomials transformation to get the coefficients. I have tried "poly.transform" as applied in S-plus but it does not work. Thanks in advanced for any helps. Regards. Abd. Rahman Kassim (PhD) Head Forest Ecology Branch Forest Management & Ecology Program Forestry and Conservation Division Forest Research Institute Malaysia Kepong 52109 Selangor,

Dear All, I'm trying to attach a legend outside the plot (Inside plot OK), but failed. Any help is very much appreciated. Thanks. Abd. Rahman Kassim, PhD Forest Management & Ecology Program Forestry & Conservation Division Forest Research Institute Malaysia Kepong 52109 Selangor MALAYSIA ***************************************** Checked by TrendMicro Interscan Messaging Security.

I have a file, each column of which is a separate year, and each row of each column is mean precipitation for that month. Looks like this (except it goes back to 1964). month X2000 X2001 X2002 X2003 X2004 X2005 X2006 X2007 X2008 X2009 1 1.600 1.010 4.320 2.110 0.925 3.275 3.460 0.675 1.315 2.920 2 2.960 3.905 3.230 2.380 2.720 1.880 2.430 1.380

Hi I am searching for a way to do something like "ABC" -> c("A","B","C"). How can this be accomplished? I tried cut() and split(), but they do something else, it seems. The purpose for doing this is to find the number of common (and uncommon) characters, i.e. ultimately I want something like this: > foo("ABD","ADE") c(2,1) # 2

Dear All, I have a question on overlaying a filled.contour (e.g. on soil properties data) and contour (by elevation) in one graph. Both have the same z matrix dimension. I'm able to overlay both graph, but the plots dimension did not overlap well on the same plots. How can I have both filled.contour and contour on the same graph? The commands that I have written are as follows:

Was just playing around with trying to sort out validation of zip/postcodes depending on what country the user lived in, and was wondering if anyone has done this in a nice way? Seems to me that it would be a relatively simple addition to Globalize to add a regex for zip code validation to the things already in there? Or am I missing a trick? Thanks geoff -------------- next part --------------

Dear All, I'm trying to save a dataframe using write.table command. It works, but when I retrieved, there's an error message as shown below: > write.table(soil.dat,file="C:/soil.rdata") > load("C:/soil.rdata") Error: bad restore file magic number (file may be corrupted)-- no data loaded I can figure out the error message. Any assistance to solve the

I have downloaded Ububtu abd used Add/Remove to install Wine. I can not get it to work. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.winehq.org/pipermail/wine-users/attachments/20070906/86803328/attachment.htm

Hola a todos Me gustaría saber si me pueden ayudar con lo siguiente. Realicé un Boxplot usando ggplot2 para visualizar el comportamiento de dos variables. Visualmente no se notan las diferencias porque la gráfica de la derecha (parásitos en el abdomen) llega hasta 20 en el eje y. ¿Cómo puedo hacer para que las dos gráficas muestren la misma escala en el eje Y, es decir, que las dos lleguen a 60?

Hi, I just encountered what I thought was strange behavior in MDS. However, it turned out that the mistake was mine. The lesson learned from my mistake is that one should plot on a square pane when plotting results of an MDS. Not doing so can be very misleading. Follow the example of an equilateral triangle below to see what I mean. I hope this helps others to avoid this kind of headache.