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Hi, I need to subset different levels of vector in a dataset to create a new dataframe that contains only these. These observations are not numerical, so I can't use the subset() function (at least this is the response I get from R). Suppose the dataframe looks like this:   ParticipID    ERP   Electrode 1         s1  0.0370       FP1 2         s2 35.0654       FP2 3         s3

Hi R users, I am quite new to R and I don't know how to deal with this (surely) easy issue. I need to replace words in sentences with as many hash marks as the number of characters per each word, as in the following example: Mary plays football #### ##### ######## Any suggestion about the function to be used? Thanks a lot. S. [[alternative HTML version deleted]]