title: dimensional time series data clustering
body: <p>I have a data set which is time-series type and contains three dimensions namely acceleration, speed and grade. I want to apply clustering to identify the clusters that have similar speed (acceleration=0, positive or negative) varying with grade. I do not know what type of clustering should i use, surely k-means cannot help me because there is a serial correlation between my data point because each point is affected by its previous point. Could you please help me with the type of clustering?</p>