tech.tablesaw.aggregate.NumericAggregateFunction Maven / Gradle / Ivy
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package tech.tablesaw.aggregate;
import tech.tablesaw.api.ColumnType;
import tech.tablesaw.api.NumericColumn;
/** A partial implementation of aggregate functions to summarize over a numeric column */
public abstract class NumericAggregateFunction extends AggregateFunction, Double> {
/**
* Constructs a NumericAggregateFunction with the given name. The name may be used to name a
* column in the output when this function is used by {@link Summarizer}
*/
public NumericAggregateFunction(String name) {
super(name);
}
/** {@inheritDoc} */
@Override
public boolean isCompatibleColumn(ColumnType type) {
return type.equals(ColumnType.DOUBLE)
|| type.equals(ColumnType.FLOAT)
|| type.equals(ColumnType.INTEGER)
|| type.equals(ColumnType.SHORT)
|| type.equals(ColumnType.LONG);
}
/** {@inheritDoc} */
@Override
public ColumnType returnType() {
return ColumnType.DOUBLE;
}
}