Can you post the statistics of each time series? Like mean, standard deviation, skewness, kurtosis? An interesting experiment is to try different bars on pi then redo the statistical measure. The statistics should be nearly identical if large number of values are used.
Chart A is obviously PI... I think..
I think if I told you the timeframes of either chart, the answer would be more obvious. I'll wait for a few more votes.
I was fuzz testing my neural network, and found the PI charts remarkably similar to an actual marketplace. They're good for the testing procedure anyhow.
I would certainly like to participate in an experiment where the trader had to try and ascertain which charts were produced by a random walk and which were actual market data over a larger sample, the results would be very interesting.
Was there a particular hypothesis you wanted to pose with this thread?
is this seriously the best use of your time? Shocking!!!