Hi John, John Fernandes <jfernand at="" stanford.edu=""> writes: >> However, I am getting results from the weight function. Does the warning >> indicate a problem? It is difficult to say whether the warning message indicates a problem with the results returned by the function. >> I am getting a warning for each file: >> >> "the condition has length > 1 and only the first element will be used >> in: if (text.to.search != "") for (i in 1:ncn)" This means that the text.to.search variable is a vector with length greater than 1 and that the if statement is only using the first element for the logical test. Whether or not this is a real problem requires a more thorough understanding of the code. > Anyone have an idea what could be causing the warning I'm getting? Do > you need more info from me? Can I look up the error somewhere? If you want to get more details you could do: debug(read.maimages) And then run your example and step through what read.maimages is doing. You will be able to inspect variables by printing them and will likely be able to gain more information. ANother way to identify this is to turn warnings into errors using options() and set the error response to recover: options(warn=4, error=recover) + seth -- Seth Falcon | Computational Biology | Fred Hutchinson Cancer Research Center http://bioconductor.org