org.rosuda.REngine
Class REXPExpressionVector

java.lang.Object
  org.rosuda.REngine.REXP
      org.rosuda.REngine.REXPVector
          org.rosuda.REngine.REXPGenericVector
              org.rosuda.REngine.REXPExpressionVector

public class REXPExpressionVector
extends REXPGenericVector

REXPExpressionVector represents a vector of expressions in R. It is essentially a special kind of generic vector - its elements are expected to be valid R expressions.

Field Summary

Fields inherited from class org.rosuda.REngine.REXP

attr, maxDebugItems

Constructor Summary

REXPExpressionVector(RList list)
create a new vector of expressions from a list of expressions.

REXPExpressionVector(RList list, REXPList attr)
create a new vector of expressions from a list of expressions.

Method Summary

boolean

isExpression() check whether the REXP object is an expression vector

Methods inherited from class org.rosuda.REngine.REXPGenericVector

asList, asNativeJavaObject, isList, isRecursive, length, toDebugString, toString

Methods inherited from class org.rosuda.REngine.REXPVector

isNA, isVector

Methods inherited from class org.rosuda.REngine.REXP

_attr, asBytes, asDouble, asDoubleMatrix, asDoubles, asFactor, asInteger, asIntegers, asString, asStrings, createDataFrame, createDoubleMatrix, dim, getAttribute, hasAttribute, inherits, isComplex, isEnvironment, isFactor, isInteger, isLanguage, isLogical, isNull, isNumeric, isPairList, isRaw, isReference, isString, isSymbol

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

REXPExpressionVector

public REXPExpressionVector(RList list)

create a new vector of expressions from a list of expressions.

Parameters:

list - list of expressions to store in this vector

REXPExpressionVector

public REXPExpressionVector(RList list,
                            REXPList attr)

create a new vector of expressions from a list of expressions.

Parameters:

list - list of expressions to store in this vector

attr - attributes for the R object

Method Detail

isExpression

public boolean isExpression()

Description copied from class: REXP

check whether the REXP object is an expression vector

Overrides:

isExpression in class REXP

Returns:

true if the receiver is an expression vector, false otherwise