Hey-

I was wondering if I could get some additional advice. I have been working with your code, and I have ran into a slight problem. It seems as though this routine is creating a new date column for each zipcode entry instead of summing the amounts of money for each date and zipcode. The end results is a symmetric matrix, with the columns equaling the number of zipcodes. This is not what should happen. Instead, I was envisioning a matrix with the rows equaling the number of zip codes and the columns equaling the number of dates. I have limited the data set to 4000 zipcodes and 60 days, so the matrix should be 4000 X 60, with each cell representing the total amount of money for that zipcode at that day. So (1,1) => Zipcode 12345 total contribution for 09012000, (1,2) => zipcode 12345 total contribution for 09022000, (2,1) => zipcode 12346 total contribution for 09012000, you get the idea. Instead what I get is a matrix 4000 X 4000, which seems to create new dates for each new zipcode entry. I think what is going on is a keying problem with the hash. Instead of recognizing 09012000 = 09012000 it assumes 09012000 != 09012000 and it is creating a new column 09012000.1 instead of grouping the dates together. Do you have any thoughts on this matter? Thanks.

In reply to Re^2: Creating One Table From Several Hashes by bryced1234
in thread Creating One Table From Several Hashes by bryced1234

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