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Frequency Tables

Mala Mahadevan shows how to generate a frequency table in T-SQL and in R:

My results are as below. I have 1000 records in the table. This tells me that I have 82 occurences of age cohort 0-5, 8.2% of my dataset is from this bracket, 82 again is the cumulative frequency since this is the first record and 8.2 cumulative percent. For the next bracket 06-12 I have 175 occurences, 17.5 %, 257 occurences of age below 12, and 25.7 % of my data is in this age bracket. And so on.

Click through for the T-SQL and R scripts.