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Is the kolmogorov-smirnov test valid on both continuous and discrete data? I don't think so, and the example below helped me understand why. A suggestion on testing the discrete data would be appreciated. Thanks, a <- rnorm(1000, 10, 1);a # normal distribution a b <- rnorm(1000, 12, 1.5);b # normal distribution b c <- rnorm(1000, 8, 1);c # normal distribution c d <- rnorm(1000,

I've a set of data to run a GLM on and am having trouble defining the categorical variables. For example, one of my variables is Year (ie. 1998, 1999). How do I define those years as factors/categorical variables? Cheers, Tim [[alternative HTML version deleted]]

I'm having trouble with alignment of a trend line overlayed onto an image plot. The two should be plotted on the same x-axis (time-series). However, the trend line begins about an inch into the image plot x-axis and ends about an inch off of end of the image plot. Once I have the alignment sorted, I need to put a secondary y-axis on the image plot which is scaled for the trend line. An

Hi- I need to subset the following data by the column 'dal' for values that equal the regular interval seq(0, 150, by=0.5) exactly.... ....excluding rows with irregular 'dal' values such as c(2.888958, 2.891620), etc. data<-data.frame(id=id, dal=dal, date=date, mu.x=mu.x) $dal [1] 0.000000 0.500000 1.000000 1.500000 2.000000 2.500000 2.888958 2.891620 3.000000 3.245405

Hi- I have two data frames for which I wish to conditionally subtract the values of one dataframe from the other. I want to subtract df1$x from df2$x when their id is equal and the absolute value of difference between the dates is 12 hours or less. If there is no match of equal id's and dates less than 12 hours apart I want it to return "NA". Note that df1 has missing values in x

I am trying to create a frequency distribution and I am a bit confused. Here are the commands I have entered: > data <- read.csv(file="40609_sortedfinal.csv",head=TRUE,sep=",") > NumberOfActionsByStatus = data$STATUS > NumberOfActionsByUser = data$ETS_LOGIN > NumberOfBidOffer = data$BID_OFFER > NumberOfActionsByUser.freq = table(NumberOfActionsByUser) >

Hi- I'm gettting the following error message when trying to use the segmented function to look for breakpoints in my data. Error in segmented.glm(glm, seg.Z = ~segmentdist, psi = 2, control = seg.control(display = F), : (Some) estimated psi out of its range Here are some real data and the models I'm calling which gives the error above. > segmentdist [1] 0.000000 8.547576

Hi- Tabular data have been provided to me within .csv files. I need to transform the data from tabular format into a dataframe with three columns. The columns need to be the table row id, table column id, and the tabulated variable. An example dataset can be downloaded here:

Hello- I need to loop through a directory of files to extract data corresponding to dates in a dataframe. Within a function, I've written nested loops to index the dataframe dates, and the directory files. My function successfully extracts the data corresponding to my first data frame date, but stops there and doesn't continue through my entire list of data frame dates and directory

Hello- I have been trying to install SciView under Windows Vista (Home Premium version, 32 bit OS, Intel Core Duo 2.13GHz, 2Gig RAM). I am getting an error, apparently related to the R2HTML package (version 1.54) as you will see in the R information below my signature. I have tried to email directly to support@sciviews.org for support but have had my message returned as undeliverable. Your help