Class Trend
java.lang.Object
org.apache.poi.ss.formula.functions.Trend
- All Implemented Interfaces:
Function
Implementation for the Excel function TREND
If known_x's is not given, it is assumed to be the default array {1, 2, 3, ...} of the same size as known_y's.
If new_x's is not given, it is assumed to be the same as known_x's
If constant is omitted, it is assumed to be TRUE
Syntax:
TREND(known_y's, known_x's, new_x's, constant)
| known_y's, known_x's, new_x's | typically area references, possibly cell references or scalar values |
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| constant | TRUE or FALSE: determines whether the regression line should include an intercept term |
If known_x's is not given, it is assumed to be the default array {1, 2, 3, ...} of the same size as known_y's.
If new_x's is not given, it is assumed to be the same as known_x's
If constant is omitted, it is assumed to be TRUE
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Constructor Summary
Constructors -
Method Summary
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Constructor Details
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Trend
public Trend()
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Method Details
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evaluate
- Specified by:
evaluatein interfaceFunction- Parameters:
args- the evaluated function arguments. Empty values are represented withBlankEvalorMissingArgEval, nevernull.srcRowIndex- row index of the cell containing the formula under evaluationsrcColumnIndex- column index of the cell containing the formula under evaluation- Returns:
- The evaluated result, possibly an
ErrorEval, nevernull. Note - Excel uses the error code #NUM! instead of IEEE NaN, so when numeric functions evaluate toDouble.NaNbe sure to translate the result toErrorEval.NUM_ERROR.
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