## org.apache.poi.ss.formula.functions
Class Counta

    java.lang.Object
      org.apache.poi.ss.formula.functions.Counta

All Implemented Interfaces:
  Function

    public final class Counta

extends java.lang.Object
implements Function

Counts the number of cells that contain data within the list of arguments. Excel Syntax COUNTA(value1,value2,...) Value1, value2, ... are 1 to 30 arguments representing the values or ranges to be counted.

Author:
  Josh Micich

Constructor Summary
`Counta()`

Method Summary
`ValueEval` `evaluate(ValueEval[] args, int srcCellRow, int srcCellCol)`
`static Counta` `subtotalInstance()`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### Counta

    public Counta()

Method Detail

### evaluate

    public ValueEval evaluate(ValueEval[] args,
                              int srcCellRow,
                              int srcCellCol)

  Specified by:
    `evaluate` in interface `Function`
  Parameters:
    `args` - the evaluated function arguments. Empty values are represented with `BlankEval` or `MissingArgEval`, never `null`.
    `srcCellRow` - row index of the cell containing the formula under evaluation
    `srcCellCol` - column index of the cell containing the formula under evaluation
  Returns:
    The evaluated result, possibly an `ErrorEval`, never `null`. Note - Excel uses the error code #NUM! instead of IEEE NaN, so when numeric functions evaluate to `Double.NaN` be sure to translate the result to `ErrorEval.NUM_ERROR`.

### subtotalInstance

    public static Counta subtotalInstance()

Copyright 2012 The Apache Software Foundation or its licensors, as applicable.