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I would like to code records in a dataset with a 1 if any of the columns 9-67 contain a particular code, and zero if they don't. I've been working with "subset" and it seems that something...
I have a list of ICD9 (disease) codes with various formats - 3 digit, 4 digit, 5 digit. The first three digits of these codes are what I am most interested in. I would like to either add zeros to the...
I have a list of ICD9(disease) codes and associated exposure measures. I am interested in a script that would calculate the mean exposure for each ICD9 code and the combined mean for all other codes excluding that code, then...
I am interested in locating a script to implement a sampling scheme that would basically make it more likely that a particular observation is chosen based on a weight associated with the observation. I am trying to select a sample...
Hello. I am looking for a function that will allow me to paste rows together without regard for the numbers of columns in the datasets to be joined. The only columns where it matters if they are aligned correctly are...
Hello everyone, I have a .csv file with the following format: uniqueID SubjectID Distance_miles Tag 1 1001 5.5 3 2 1001 7 1 3 1001 6.5 1 4 1001 5 1 5 1002 2 2 6 1002...
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