ms excel lookup functions
DESCRIPTION
MS Excel Lookup Functions. Southwest Florida Water Management District Data Analyst Interview. Mark Brady 11/19/2012. MS Excel Lookup Functions. MS Excel Lookup Functions. These are functions that operate on lists or arrays of data Data may reside in Workbooks, Databases, or text files - PowerPoint PPT PresentationTRANSCRIPT
MS EXCEL LOOKUP FUNCTIONS
Mark Brady11/19/2012
Southwest Florida Water Management District
Data Analyst Interview
MS EXCEL LOOKUP FUNCTIONSFunction DescriptionADDRESS Returns a reference as text to a single cell in a
worksheetAREAS Returns the number of areas in a referenceCHOOSE Chooses a value from a list of valuesCOLUMN Returns the column number of a referenceCOLUMNS Returns the number of columns in a referenceHLOOKUP Looks in the top row of an array and returns the
value of the indicated cell
HYPERLINKCreates a shortcut or jump that opens a document stored on a network server, an intranet, or the Internet
INDEX Uses an index to choose a value from a reference or array
INDIRECT Returns a reference indicated by a text valueLOOKUP Looks up values in a vector or arrayMATCH Looks up values in a reference or arrayOFFSET Returns a reference offset from a given referenceROW Returns the row number of a referenceROWS Returns the number of rows in a reference
RTD
Retrieves real-time data from a program that supports COM automation (Automation: A way to work with an application's objects from another application or development tool. Formerly called OLE Automation, Automation is an industry standard and a feature of the Component Object Model (COM).)
TRANSPOSE Returns the transpose of an arrayVLOOKUP Looks in the first column of an array and moves
across the row to return the value of a cell
MS EXCEL LOOKUP FUNCTIONS
Mark Brady11/19/2012
These are functions that operate on lists or arrays of dataData may reside in Workbooks, Databases, or text files Most functions can be nested or combined with other functionsBest used for simple data table relationshipsSTATION TYPE COUNTY
S235 GATE MARTINLZ40 PLATFORM PALM BEACHS308 STRUCTURE DADES155 PLATFORM HENDRY
MS EXCEL LOOKUP FUNCTIONS
Mark Brady11/19/2012
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
MS EXCEL LOOKUP FUNCTIONS
Mark Brady11/19/2012
An Example:Grassy Waters Preserve
Rainfall Data
MS EXCEL LOOKUP FUNCTIONS
Mark Brady11/19/2012
VLOOKUP(lookup_value,table_array,col_index_num,range_lookup)
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True – Exact MatchFalse – Approximate MatchOmitted – Approximate Match
MS EXCEL LOOKUP FUNCTIONS
Mark Brady11/19/2012
VLOOKUP(BWPS_R,Rain_GrassyWaters,10,True)
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True – Exact MatchFalse – Approximate MatchOmitted – Approximate Match
MS EXCEL LOOKUP FUNCTIONS
Mark Brady11/19/2012
Grassy W aters Preserve R ainfall Stations Darabase Query Tool
Station Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec AnnualStation 1 PLANT IN_R 3.25 2.82 3.45 3.30 5.27 7.33 5.53 7.28 8.63 6.97 3.69 3.08 60.17Station 2 LANE PRO_R 4.74 4.61 7.32 5.13 6.22 9.02 3.72 7.14 8.38 0.41 9.76 2.31 68.74Station 3 C18W_R 2.50 2.34 3.57 2.44 4.58 7.29 7.31 8.17 8.04 5.63 3.52 0.49 53.52Station 4 PETE RHO_R 4.30 3.28 4.93 3.34 5.62 8.08 6.47 7.80 8.00 5.62 6.09 2.85 66.37Station 5 WWTP_R 2.02 3.30 4.28 4.44 4.95 9.14 7.30 9.80 9.82 6.51 3.38 3.40 68.34
SUM 16.80 16.34 23.56 18.65 26.62 40.85 30.34 40.18 42.87 25.14 26.44 12.12 317.14MAX 4.74 4.61 7.32 5.13 6.22 9.14 7.31 9.80 9.82 6.97 9.76 3.40 68.74MIN 2.02 2.34 3.45 2.44 4.58 7.29 3.72 7.14 8.00 0.41 3.38 0.49 53.52MEAN 3.36 3.27 4.71 3.73 5.32 8.17 6.07 8.04 8.57 5.03 5.29 2.42 63.43
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10.00
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PLANT IN_R
LANE PRO_R
C18W_R
PETE RHO_R
WWTP_R
MS EXCEL LOOKUP FUNCTIONS
Mark Brady11/19/2012
1. You Have Your Numbers Formatted as Text2. You Have a Trailing Space at the End of Your Values3. You Forgot to Reference Lock Your Arrays4. Your logical condition (range_lookup) is not appropriate
Common Errors Encountered With VLOOKUP
Recommended Uses for VLOOKUP1. As a simple query tool2. As a user interface to data stored in separate files or databases3. As a data validation tool (dynamic graph generation)4. Complex queries are possible, but multiple nesting levels are often confusing to code and debug
MS EXCEL LOOKUP FUNCTIONS
Mark Brady11/19/2012
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!
MS EXCEL LOOKUP FUNCTIONS
Mark Brady
Initiative
Feedback
Identify Errors
Initiate SolutionsYES!!!
MS EXCEL LOOKUP FUNCTIONS
Mark Brady11/19/2012
QUESTIONS?