How to use

setOutputFormat

method

in

weka.filters.unsupervised.attribute.Center

/**
 * Sets the format of the input instances.
 *
 * @param instanceInfo     an Instances object containing the input 
 *                 instance structure (any instances contained 
 *                 in the object are ignored - only the structure 
 *                 is required).
 * @return true         if the outputFormat may be collected immediately
 * @throws Exception         if the input format can't be set successfully
 */
public boolean setInputFormat(Instances instanceInfo) throws Exception {
 super.setInputFormat(instanceInfo);
 setOutputFormat(instanceInfo);
 m_Means = null;
 return true;
}

/**
 * Sets the format of the input instances.
 *
 * @param instanceInfo     an Instances object containing the input 
 *                 instance structure (any instances contained 
 *                 in the object are ignored - only the structure 
 *                 is required).
 * @return true         if the outputFormat may be collected immediately
 * @throws Exception         if the input format can't be set successfully
 */
public boolean setInputFormat(Instances instanceInfo) throws Exception {
 super.setInputFormat(instanceInfo);
 setOutputFormat(instanceInfo);
 m_Means = null;
 return true;
}