ArcView_module_5 May 13, 10:40 AM Querying a Table ArcView_module_5 May 13, 10:40 AM

Outline Getting a Statistics about a Table Summarizing a Table

Getting a Statistics When you want to know the statistics of per capital income – mean, range, variance…

Getting a Statistics Getting a statistics Obtains statistics about a particular field’s value in a table Performed on selected records if selected; all records if no record is selected Performed only on numeric fields Displays sum, count, mean, standard deviation, range, min/max

Summarizing a Table When you want to know how many crime cases have been reported in each County or CrimeType

Summarizing a Table Summarizing a Table Summarize a table based on a particular field's values Performed on selected records if selected; all records if no record is selected The results are stored in a new table

Summarizing a Table Summary table Creates one record in the new table for each unique value of the field you chose Each record contains a count showing how many records in the table being summarized have this value

Summarizing a Table Summary table Each record also contains the result of any summary statistics you requested