1. Mark Brady 11/19/2012 Southwest Florida Water Management District Data Analyst Interview

3. Mark Brady 11/19/2012  These are functions that operate on lists or arrays of data  Data may reside in Workbooks, Databases, or text files  Most functions can be nested or combined with other functions  Best used for simple data table relationships STATIONTYPECOUNTY S235GATEMARTIN LZ40PLATFORMPALM BEACH S308STRUCTUREDADE S155PLATFORMHENDRY

4. Mark Brady 11/19/2012 VLOOKUP ( lookup_value, table_array, col_index_num,range_lookup) lookup_value - The value to search in the first column of the table array table_array - Two or more columns of data( range or a range name). col_index_num - The column number in a table array containing target values range_lookup - A logical value that specifies whether you want to find an exact match or an approximate match

5. Mark Brady 11/19/2012 An Example: Grassy Waters Preserve Rainfall Data

6. Mark Brady 11/19/2012 VLOOKUP ( lookup_value, table_array, col_index_num,range_lookup) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 True – Exact Match False – Approximate Match Omitted – Approximate Match

7. Mark Brady 11/19/2012 VLOOKUP ( BWPS_R, Rain_GrassyWaters, 10, True) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 True – Exact Match False – Approximate Match Omitted – Approximate Match

8. Mark Brady 11/19/2012

9. Mark Brady 11/19/2012 1. You Have Your Numbers Formatted as Text 2. You Have a Trailing Space at the End of Your Values 3. You Forgot to Reference Lock Your Arrays 4. Your logical condition (range_lookup) is not appropriate Common Errors Encountered With VLOOKUP Recommended Uses for VLOOKUP 1. As a simple query tool 2. As a user interface to data stored in separate files or databases 3. As a data validation tool (dynamic graph generation) 4. Complex queries are possible, but multiple nesting levels are often confusing to code and debug

10. Mark Brady 11/19/2012 Typical I.F.F.I. Workflow: Initiative (can I solve this problem with this tool?) Feedback from Peers Identify errors (logic, coding, etc) Implement Solutions Pronounced….[If-ee] Just For Fun!

11. Mark Brady Initiative Feedback Identify Errors Initiate Solutions YES!!!

12. Mark Brady 11/19/2012