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I wrote a article about the different seasons using the MACD (moving average convergence divergence) indicator here. In it, I talked about how the four seasons can be characterised objectively by looking at the slope and the positivity/negativity of the histogram. Let's see if we can replicate that into another indicator - the moving average.
There are a few kinds of moving average, and usually I'm using exponential moving average (EMA) because...