com.bedatadriven.spss

Class SpssDataFileReader

java.lang.Object

com.bedatadriven.spss.SpssDataFileReader

public class SpssDataFileReader
extends Object

Provides read-only access to SPSS files, both compressed and uncompressed.

Constructor Summary

Constructors

Constructor and Description
SpssDataFileReader(File file)
SpssDataFileReader(InputStream input)
SpssDataFileReader(String path)

Method Summary

Methods

Modifier and Type	Method and Description
double	getDoubleValue(int variableIndex)
double	getDoubleValue(String variableName)
com.bedatadriven.spss.MissingValuesHeader	getMissingValuesHeader()
long	getNumCases()
String	getStringValue(int variableIndex)
String	getStringValue(String variableName)
Map<Double,String>	getValueLabels(int variableIndex)
Map<Double,String>	getValueLabels(String variableName)
int	getVariableIndex(String name)
String	getVariableName(int index)
List<SpssVariable>	getVariables()
String	getVeryLongStringValue(int variableIndex)
String	getVeryLongStringValue(String variableName)
int	getWeightVariableIndex()
boolean	isCompressed()
boolean	isSystemMissing(int variableIndex)
boolean	isSystemMissing(String variableName)
boolean	isValueMissing(int variableIndex, double value)
boolean	isVeryLongString(int variableIndex)
boolean	isVeryLongString(String variableName)
boolean	isVeryLongStringSegment(int variableIndex)
boolean	isVeryLongStringSegment(String variableName)
boolean	readNextCase()

Methods inherited from class java.lang.Object

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

Constructor Detail

SpssDataFileReader

public SpssDataFileReader(String path)
                   throws IOException

Throws:

IOException

SpssDataFileReader

public SpssDataFileReader(File file)
                   throws IOException

Throws:

IOException

SpssDataFileReader

public SpssDataFileReader(InputStream input)
                   throws IOException

Throws:

IOException

Method Detail

getVariables

public List<SpssVariable> getVariables()

getNumCases

public long getNumCases()

Returns:

The number of cases

getMissingValuesHeader

public com.bedatadriven.spss.MissingValuesHeader getMissingValuesHeader()

isCompressed

public boolean isCompressed()

Returns:

True if this datafile is compressed, false if its uncompressed

getVariableName

public String getVariableName(int index)

getVariableIndex

public int getVariableIndex(String name)

getWeightVariableIndex

public int getWeightVariableIndex()

Returns:

The (logical) index of the weight variable, or -1 if the datafile is not weighted

getDoubleValue

public double getDoubleValue(String variableName)

getDoubleValue

public double getDoubleValue(int variableIndex)

getStringValue

public String getStringValue(String variableName)

getStringValue

public String getStringValue(int variableIndex)

getVeryLongStringValue

public String getVeryLongStringValue(String variableName)

getVeryLongStringValue

public String getVeryLongStringValue(int variableIndex)

isVeryLongString

public boolean isVeryLongString(String variableName)

isVeryLongString

public boolean isVeryLongString(int variableIndex)

isVeryLongStringSegment

public boolean isVeryLongStringSegment(String variableName)

isVeryLongStringSegment

public boolean isVeryLongStringSegment(int variableIndex)

isSystemMissing

public boolean isSystemMissing(String variableName)

isSystemMissing

public boolean isSystemMissing(int variableIndex)

getValueLabels

public Map<Double,String> getValueLabels(String variableName)

getValueLabels

public Map<Double,String> getValueLabels(int variableIndex)

isValueMissing

public boolean isValueMissing(int variableIndex,
                     double value)

readNextCase

public boolean readNextCase()
                     throws IOException

Throws:

IOException