search for: cmarcum

Hello All, I've been using R for two years now and I am happy to say this is the first time I could not find the answer to my problem in the R-help archives. Here is the pending problem: I want to be able to insert delimiters, say commas, into a string of characters at uneven intervals such that: foo<-c("haveaniceday")#my string of character bar<-c(4,1,4,3) # my vector of

Hello, I am sure I am not the only person with this problem. I have a list with n elements, each consisting of a single column matrix with different row lengths. Each row has a name ranging from A to E. Here is an example: alph[[1]] A 1 B 2 C 3 D 4 alph[[2]] A 1 C 3 D 4 alph[[3]] A 1 D 4 E 5 I would like to create a matrix from the elements in the list with n columns such that the row names

Hello All, I have had considerable bad luck with attempting the following with for loops. Here is the problem: # Suppose we have a data.frame with the following data, which can be considered a type of edgelist (for those with networks backgrounds): # # V1 V2 # 1 A # 1 A # 1 B # 2 A # 3 C # 3 A # 3 C # 3 B # # I want the output of the function to produce a matrix, such that #each factor of

Hello R-Users, I would like to use an iterative loop to collect user input from within a function. I'm sure that this would be some combination of "for","break", and "next" but have not been able to get the syntax down. I would like to print some text to the screen at each step in the loop, ask the user for input which is saved in an object, and then advance the

Greetings All! After much trial and error, and an exhaustive search of the archives, I'm writing to solicit help with a problem. I want to dynamically modify variable names and values as function arguments inside a loop. I have a canned function from a package that takes ellipsis (...) arguments of the form varb=vval where varb is a name and vval is either numeric or character. I want to