jmathlib.toolbox.io
Class csvread

java.lang.Object
  extended by jmathlib.core.interpreter.RootObject
      extended by jmathlib.core.functions.Function
          extended by jmathlib.core.functions.ExternalFunction
              extended by jmathlib.toolbox.io.csvread
All Implemented Interfaces:
java.io.Serializable, java.lang.Cloneable, ErrorCodes, TokenConstants

public class csvread
extends ExternalFunction

An external function for loading a matrix from a csv file

See Also:
Serialized Form

Field Summary
 
Fields inherited from class jmathlib.core.functions.ExternalFunction
IMAG, REAL
 
Fields inherited from class jmathlib.core.functions.Function
lastModified, name, pathAndFileName
 
Fields inherited from interface jmathlib.core.constants.ErrorCodes
ERR_BRACKET_OPEN, ERR_BRACKET_ORDER, ERR_FUNCTION_NOT_FOUND, ERR_FUNCTION_NOT_IMPLEMENTED, ERR_INSUFFICIENT_PARAMETERS, ERR_INVALID_PARAMETER, ERR_LVALUE_REQUIRED, ERR_MATRIX_SINGULAR, ERR_NOT_SQUARE_MATRIX, ERR_OPNOTSUPPORTED, ERR_TOO_MANY_PARAMETERS, ERR_USER_ERROR, ERR_VARIABLE_NOTDEFINED, OK, OK_FUNCTION_PROCESS
 
Fields inherited from interface jmathlib.core.constants.TokenConstants
ADDSUB_PRIORITY, AND_PRIORITY, ANDAND_PRIORITY, ASSIGN_PRIORITY, BRACKET_PRIORITY, COMPARE_PRIORITY, CONCAT, MATRIX, MULDIV_PRIORITY, OR_PRIORITY, OROR_PRIORITY, PARAMETER, POWER_PRIORITY, RELATION_PRIORITY, SINGLE, ttDelimiter, ttNotSet, ttOperand, ttOperator
 
Constructor Summary
csvread()
           
 
Method Summary
 OperandToken evaluate(Token[] operands, GlobalValues globals)
          Check that the operand is a string then open the file referenced.
private  double[] processLine(java.lang.String line)
           
 
Methods inherited from class jmathlib.core.functions.ExternalFunction
getParamCount
 
Methods inherited from class jmathlib.core.functions.Function
debugLine, equals, getLastModified, getName, getNArgIn, getNArgOut, getNoOfLeftHandArguments, getPathAndFileName, setLastModified, setName, setNoOfLeftHandArguments, setPathAndFileName, throwMathLibException
 
Methods inherited from class jmathlib.core.interpreter.RootObject
clone, toString
 
Methods inherited from class java.lang.Object
finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

csvread

public csvread()
Method Detail

evaluate

public OperandToken evaluate(Token[] operands,
                             GlobalValues globals)
Check that the operand is a string then open the file referenced.

Specified by:
evaluate in class Function
Parameters:
operands[0] - = string which specifies the csv file to load
operands[1] - = the start row (optional)
operands[2] - = the start column (optional)
operands[3] - = range(optional, not implemented)
Returns:
the matrix as an OperandToken

processLine

private double[] processLine(java.lang.String line)

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