public class KeepColumnFilter extends BasicFilter
Constructor and Description |
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KeepColumnFilter() |
Modifier and Type | Method and Description |
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ProcessingStep |
createStep(Iterator<String> argIt)
Creates a new ProcessingStep based on a sequence of command-line
arguments.
|
protected String[] |
getDescriptionLines() |
static StarTable |
keepColumnTable(StarTable table,
String colIdList)
Returns a table which selects a number of columns from its base
table by column ID.
|
explainSyntax, getDescription, getName, getUsage
protected String[] getDescriptionLines()
getDescriptionLines
in class BasicFilter
public ProcessingStep createStep(Iterator<String> argIt) throws ArgException
ProcessingFilter
If the argument list is badly-formed as far as this filter is
concerned, an ArgException
should be thrown.
argIt
- iterator over command-line arguments positioned
at the first oneArgException
public static StarTable keepColumnTable(StarTable table, String colIdList) throws IOException
table
- base tablecolIdList
- list of column IDs, one for each column
in the output tableIOException
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