Dear all, 1) I have a very large matrix of str(keep) num [1:153899, 1:3415] -98.6 -95.8 -96.4 -95.8 -98 ... that I would like to reduce its size to something like
str(keep) num [1:1000, 1:3415] -98.6 -95.8 -96.4 -95.8 -98 ... or anything similar in size as this is a matrix that needs plotting (so is ok if it is 1000 row, 995, or 1123) I think what I need here is a way of selecting multiple rows and averaging per column (notice that the column number should stay the same) b. I would like to be able to convert strings that are function names to real function calls. For example I have something like LogFunction<- function(){} FunctionIndex<- rbind (c(1,"LogFunction"), c(2,"TakeFunction") ) print(sprintf('Using the function %s',FunctionIndex[1,1])) # call the FunctionIndex[1,1] somehow I would like to thank you in advance for your help Regards Alex [[alternative HTML version deleted]]
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