functions, which allows users to perform data exploration and
discovery.Leonard et al., [15] in their paper, ―An Introduction to
Similarity Analysis using SAS‖, described in detail how DTW
technique was implemented in SAS Enterprise Miner. In
another similar work, Leonard and Wolfe [16] had also
explained how the DTW technique could be used in SAS
Enterprise Miner for mining transactional and time-series
data. For the purpose of this research, SAS Enterprise Miner
will also be used as the tool to perform time-series mining and
clustering on the generated O-D time interval data to
investigate the travel pattern of Singapore public train
commuters. Fig. 5 shows SAS Enterprise Miner work process.