BigML represents your test data and the model forecasts in a chart, so you can visually analyze the goodness-of-fit of your Time Series models. You will also see multiple performance metrics such as the Mean Absolute Error (MAE), the Mean Squared Error (MSE), the R squared, the ...
For example, the paper considers several variations, including the average drawdown for a sample period, a linearly weighed drawdown, an average squared drawdown, and a trend weighted drawdown. Which measure of drawdown excels? In search of an answer, the authors simulate portfolios that select st...