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## Package org.apache.poi.hssf.record.formula.functions

Interface Summary
FreeRefFunction | For most Excel functions, involving references ((cell, area), (2d, 3d)), the references are passed in as arguments, and the exact location remains fixed.
Function | Common interface for all implementations of Excel built-in functions.
Function0Arg | Implemented by all functions that can be called with zero arguments
Function1Arg | Implemented by all functions that can be called with one argument
Function2Arg | Implemented by all functions that can be called with two arguments
Function3Arg | Implemented by all functions that can be called with three arguments
Function4Arg | Implemented by all functions that can be called with four arguments

Class Summary
AggregateFunction |
BooleanFunction | Here are the general rules concerning Boolean functions: Blanks are ignored (not either true or false) Strings are ignored if part of an area ref or cell ref, otherwise they must be 'true' or 'false' Numbers: 0 is false.
CalendarFieldFunction | Implementation of Excel functions DAY, MONTH and YEAR
Choose |
Column |
Columns | Implementation for Excel COLUMNS function.
Count | Counts the number of cells that contain numeric data within the list of arguments.
Counta | Counts the number of cells that contain data within the list of arguments.
Countblank | Implementation for the function COUNTBLANK
Countif | Implementation for the function COUNTIF
DateFunc | Implementation for the Excel function DATE
Days360 | Calculates the number of days between two dates based on a 360-day year (twelve 30-day months), which is used in some accounting calculations.
Errortype | Implementation for the ERROR.TYPE() Excel function.
Even |
FinanceFunction |
Fixed0ArgFunction | Convenience base class for functions that only take zero arguments.
Fixed1ArgFunction | Convenience base class for functions that must take exactly one argument.
Fixed2ArgFunction | Convenience base class for functions that must take exactly two arguments.
Fixed3ArgFunction | Convenience base class for functions that must take exactly three arguments.
Fixed4ArgFunction | Convenience base class for functions that must take exactly four arguments.
Hlookup | Implementation of the HLOOKUP() function. HLOOKUP finds a column in a lookup table by the first row value and returns the value from another row. Syntax: HLOOKUP(lookup_value, table_array, row_index_num, range_lookup) lookup_value The value to be found in the first column of the table array. table_array An area reference for the lookup data.
Hyperlink | Implementation of Excel HYPERLINK function. In Excel this function has special behaviour - it causes the displayed cell value to behave like a hyperlink in the GUI.
IfFunc | Implementation for the Excel function IF
Index | Implementation for the Excel function INDEX
Indirect | Implementation for Excel function INDIRECT INDIRECT() returns the cell or area reference denoted by the text argument. Syntax: INDIRECT(ref_text,isA1Style) ref_text a string representation of the desired reference as it would normally be written in a cell formula. isA1Style (default TRUE) specifies whether the ref_text should be interpreted as A1-style or R1C1-style.
LogicalFunction |
Lookup | Implementation of Excel function LOOKUP. LOOKUP finds an index row in a lookup table by the first column value and returns the value from another column.
Match | Implementation for the MATCH() Excel function. Syntax: MATCH(lookup_value, lookup_array, match_type) Returns a 1-based index specifying at what position in the lookup_array the specified lookup_value is found. Specific matching behaviour can be modified with the optional match_type parameter.
MinaMaxa |
Mode |
MultiOperandNumericFunction |
Na | Implementation of Excel function NA()
NotImplementedFunction |
Now | Implementation of Excel NOW() Function
Npv | Calculates the net present value of an investment by using a discount rate and a series of future payments (negative values) and income (positive values).
NumericFunction |
NumericFunction.OneArg |
NumericFunction.TwoArg |
Odd |
Offset | Implementation for Excel function OFFSET() OFFSET returns an area reference that is a specified number of rows and columns from a reference cell or area. Syntax: OFFSET(reference, rows, cols, height, width) reference is the base reference. rows is the number of rows up or down from the base reference. cols is the number of columns left or right from the base reference. height (default same height as base reference) is the row count for the returned area reference. width (default same width as base reference) is the column count for the returned area reference.
Replace | An implementation of the Excel REPLACE() function: Replaces part of a text string based on the number of characters you specify, with another text string. Syntax: REPLACE(oldText, startNum, numChars, newText) oldText The text string containing characters to replace startNum The position of the first character to replace (1-based) numChars The number of characters to replace newText The new text value to replace the removed section
RowFunc | Implementation for the Excel function ROW
Rows | Implementation for Excel ROWS function.
Substitute | An implementation of the SUBSTITUTE function: Substitutes text in a text string with new text, some number of times.
Subtotal | Implementation for the Excel function SUBTOTAL
Sumif | Implementation for the Excel function SUMIF
Sumproduct | Implementation for the Excel function SUMPRODUCT
Sumx2my2 | Implementation of Excel function SUMX2MY2() Calculates the sum of differences of squares in two arrays of the same size. Syntax: SUMX2MY2(arrayX, arrayY) result = Σi: 0..n(xi2-yi2)
Sumx2py2 | Implementation of Excel function SUMX2PY2() Calculates the sum of squares in two arrays of the same size. Syntax: SUMX2PY2(arrayX, arrayY) result = Σi: 0..n(xi2+yi2)
Sumxmy2 | Implementation of Excel function SUMXMY2() Calculates the sum of squares of differences between two arrays of the same size. Syntax: SUMXMY2(arrayX, arrayY) result = Σi: 0..n(xi-yi)2
T | Implementation of Excel T() function If the argument is a text or error value it is returned unmodified.
TextFunction |
TimeFunc | Implementation for the Excel function TIME
Today | Implementation of Excel TODAY() Function
Value | Implementation for Excel VALUE() function. Syntax: VALUE(text) Converts the text argument to a number.
Vlookup | Implementation of the VLOOKUP() function. VLOOKUP finds a row in a lookup table by the first column value and returns the value from another column. Syntax: VLOOKUP(lookup_value, table_array, col_index_num, range_lookup) lookup_value The value to be found in the first column of the table array. table_array An area reference for the lookup data.
XYNumericFunction |

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