search for: zrl1974

Dear list, I have a question regarding how to allocate or initialize the proper type of the arrays or lists. I have a for loop, each iteration, I want it to assign a subset of a data frame to an element of an array or list. However, I am wondering how I should initialize or allocate the empty array or list so that it has the same number of the elements as the subsets I am going to assign and

Hi, recently, I got a bunch of DNA sequences (with chromosome coordinate for each sequence), I would like to know the relative distance between these sequences and all the genes (genomic sequences) on human genome, i.e., are these sequences locate at upstream of the genes(5 prime end), downstream of the genes(3 prime end) or within the genes. I have about 8000 sequences. Any package, methods

Dear list: I know this may be an old question. I know how to install the packages to a different directory, for example, /home/zrl/tmp and I know how to load it >library("genefilter",lib.loc="/home/zrl/tmp") but I found some package(for example package A) will have to load some other packages as well, and this time package A will look for the package in the original

Dear List: I am trying to find a command in R which is like the unix command "less" or "more" to show the data in a object of R. did anyone can help me on this? Is there a collection of such unix-like commands in R? Thanks. -ZRL [[alternative HTML version deleted]]

Hi, I am wondering how to control the label position on panels of trellise plot. I have 6 panels, I want to all x label positions at the bottom of each panel. How should I do that? Similar, how should I control y label positions of each panel? Thanks. [[alternative HTML version deleted]]

Dear list, I am confused on how to explain the interaction term in the context of "treatment contrast". for example, I have an data frame as below: sub group val 1 a group1 3.685625 2 a group1 3.407445 3 a group1 4.040920 4 a group1 2.890875 5 b group1 3.853280 6 b group1 4.113585 7 b group1 3.043250 8 b group1 3.800920 9 c group1 5.394305 10 c