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13 Cards in this Set
- Front
- Back
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Text Mining |
-Text analytics -Software that searches vast amounts of textual data (unstructured) identifying patterns. -Emails, discussion boards, -Field of lingeistics -Categorizes textual data, identify frequency of important words/phrases, analyze sentiment in group of posts, summarize documents |
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Spreadsheet design goal: Efficiency |
-All calculations and repetitive tasks, including comparisons, should be done by the spreadsheet -Efficient spreadsheet is one that performs all calculations, youre left to do work only you can do. -Math and comparisons |
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Business Intelligence |
-Refers to information systems and procedures that produce results. -Set of software and methodologies that present visualizations depicting insights gathered from analytics and traditional IS for the purpose of improved decision making. -Includes data analytics processing (big data) -Output displayed in a way for the user to easily understand |
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IF Functions |
-IF function displays one of two possible values depending on the outcome of a logical test -Logical test compares two things =IF(logical test, true value, false value) -If the logical test equates to TRUE, the cell is filled with the true value -If the logical test equates to FALSE, the cell is filled with the false value |
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SUMIF |
-sumif, countif, and averageif are used when we want to total certain cells within a range. |
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SUMIF, COUNTIF, AVERAGEIF |
-SUMIF function includes a value in the calculation only when the criteria is true =SUMIF(range, criteria, sum_range) -Each cell in range is compared to criteria -If that comparison equates to TRUE, the corresponding cell in sum_range is included in the calculation |
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SUMIFS, COUNTIFS, AVERAGEIFS |
-SUMIFS function includes a value in the calculation only when two or more criteria are true. =SUMIFS(sum_range, criteria_range1, criteria1, criteria_range2, criteria2) -Each cell in rangex is compared to criteriax -If all comparisons equate to TRUE for a single row, the corresponding cell in sum_range is included in the calculation |
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Grouping Worksheets |
-Hold SHIFT or CTRL as you select sheet tabs. Right-click and select group -Allows you to make changes to multiple worksheets at once -All groups sheets must have same layout -Right click=ungroup |
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3-D cell references |
-References to cells not on the current worksheet Range on another sheet: Sheet1!A1:A10 Range across multiple sheets: Sheet1:Sheet3!A1 |
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Range names |
-More user-friendly name than column and row reference -Makes calculations more understandable -Locate with Find, Go To -Range Names are absolute -type name in range box |
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VLOOKUP function |
-Displays best one of MANY possible values depending on the outcome of a logical test -Often used to translate one value into another value -has 4 perameters -Requires a lookup table -lookup value is compared to lookup table -can find exact match (false) or next closest value (true) =VLOOKUP(LookupValue,LookupTable,ColumnNumber,ExactMatch or ClosestValue) |
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Lookup table rules |
1. First column must be used for logical test 2. First column cannot contain range of value, only a value (90-100 would be interpreted as text striking like a phone number) 3. First column should be in ascending order |
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Lookup Directory example |
Find the extension for a given name in the directory |
