| PhysicalActivity-package | Process Accelerometer Data for Physical Activity Measurement | 
| dataCollapser | Collapse Accelerometer Data to a Dataset with a Longer Epoch | 
| dataSec | Accelerometer Data Example | 
| deliveryData | Data Example for Mail Delivery Day Classification | 
| deliveryFeatures | Delivery Features | 
| deliveryPred | Wrapper Function for Accelerometry data Preprocessing, Feature Extraction, and Delivery Prediction | 
| deliveryPrediction | Predict Delivery Days in Accelerometry Data | 
| deliveryPreprocess | Preprocess Accelerometry Data | 
| markDelivery | Classify Mail Delivery and Non-Delivery Days for Accelerometer Data | 
| markingTime | Mark Days | 
| markPAI | Mark Physical Activity Intensity (PAI) Level | 
| PhysicalActivity | Process Accelerometer Data for Physical Activity Measurement | 
| plotData | Plot Accelerometer Data over Time | 
| queryActigraph | Query ActiGraph File | 
| readActigraph | Read ActiGraph Accelerometer Data | 
| readCountsData | Convert Accelerometer Output Data to a Correct Data Format | 
| summaryData | Summarize Classified Wear Time by Daily Basis | 
| sumVct | Summarize Wear and Nonwear Time Interval | 
| wearingMarking | Classify Wear and Nonwear Time for Accelerometer Data |