/** * Signify that this batch of input to the filter is finished. If the filter * requires all instances prior to filtering, output() may now be called to * retrieve the filtered instances. * * @return true if there are instances pending output * @throws Exception if no input structure has been defined */ @Override public boolean batchFinished() throws Exception { if (getInputFormat() == null) { throw new Exception("No input instance format defined"); } // Do the subsample, and clear the input instances. addNoise(getInputFormat(), m_RandomSeed, m_Percent, m_AttIndex.getIndex(), m_UseMissing); for (int i = 0; i < getInputFormat().numInstances(); i++) { push((Instance) getInputFormat().instance(i).copy(), false); // No need to copy instance } flushInput(); m_NewBatch = true; m_FirstBatchDone = true; return (numPendingOutput() != 0); }
/** * Signify that this batch of input to the filter is finished. If the filter * requires all instances prior to filtering, output() may now be called to * retrieve the filtered instances. * * @return true if there are instances pending output * @throws Exception if no input structure has been defined */ @Override public boolean batchFinished() throws Exception { if (getInputFormat() == null) { throw new Exception("No input instance format defined"); } // Do the subsample, and clear the input instances. addNoise(getInputFormat(), m_RandomSeed, m_Percent, m_AttIndex.getIndex(), m_UseMissing); for (int i = 0; i < getInputFormat().numInstances(); i++) { push((Instance) getInputFormat().instance(i).copy(), false); // No need to copy instance } flushInput(); m_NewBatch = true; m_FirstBatchDone = true; return (numPendingOutput() != 0); }
m_AttIndex.setUpper(getInputFormat().numAttributes() - 1); if (!getInputFormat().attribute(m_AttIndex.getIndex()).isNominal()) { throw new Exception("Adding noise is not possible:" + "Chosen attribute is numeric."); if ((getInputFormat().attribute(m_AttIndex.getIndex()).numValues() < 2) && (!m_UseMissing)) { throw new Exception("Adding noise is not possible:" setOutputFormat(getInputFormat()); m_NewBatch = true; return false;
m_AttIndex.setUpper(getInputFormat().numAttributes() - 1); if (!getInputFormat().attribute(m_AttIndex.getIndex()).isNominal()) { throw new Exception("Adding noise is not possible:" + "Chosen attribute is numeric."); if ((getInputFormat().attribute(m_AttIndex.getIndex()).numValues() < 2) && (!m_UseMissing)) { throw new Exception("Adding noise is not possible:" setOutputFormat(getInputFormat()); m_NewBatch = true; return false;
/** * Input an instance for filtering. * * @param instance the input instance * @return true if the filtered instance may now be collected with output(). * @throws Exception if the input format was not set */ @Override public boolean input(Instance instance) throws Exception { // check if input format is defined if (getInputFormat() == null) { throw new Exception("No input instance format defined"); } if (m_NewBatch) { resetQueue(); m_NewBatch = false; } if (isFirstBatchDone()) { push(instance); return true; } else { bufferInput(instance); return false; } }
/** * Input an instance for filtering. * * @param instance the input instance * @return true if the filtered instance may now be collected with output(). * @throws Exception if the input format was not set */ @Override public boolean input(Instance instance) throws Exception { // check if input format is defined if (getInputFormat() == null) { throw new Exception("No input instance format defined"); } if (m_NewBatch) { resetQueue(); m_NewBatch = false; } if (isFirstBatchDone()) { push(instance); return true; } else { bufferInput(instance); return false; } }