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

2. Outline
Getting a Statistics about a Table
Summarizing a Table

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

4. 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

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

6. 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

7. 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

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