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Practical Predictive Analytics by Ralph Winters

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Accuracy measures produced by onestep

The onestep.df object produced from the for loop contains all of the accuracy measure for all of the groups. Take a look at the first 6. You can see that the accuracy measure rmse, mae, and mape are captured for each of the categories:

head(onestep.df)>              cat        rmse           mae      mape      acf1> 1 18 to 24 YEARS    0.013772470 0.009869590 3.752381 1.0000552> 2 25 to 34 YEARS    0.004036661 0.003380938 1.217612 1.0150588> 3 35 to 44 YEARS    0.006441549 0.004790155 2.231886 0.9999469> 4 45 to 54 YEARS    0.004261185 0.003129072 1.734022 0.9999750> 5 55 to 64 YEARS    0.005160212 0.004988592 3.534093 0.7878765> 6 65 YEARS AND OVER 0.002487451 0.002096323 12.156875 0.9999937cbind(fit$x, fit$fitted, fit$residuals)> Time Series:> Start = ...

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