dasi_project_SFPD.Rmd
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added a write.csv to dump the Incidents.csv file, after the mergin in of field  "Cat.New"
   - "Cat.New" lumps all categories from the bottom 10% of Incidents into "Other Offenses"

Incidents.csv
   - single CSV with unique(Incidents) from all date files
   - now includes "Cat.New"