Doubts about Struture in the function accuracy from Forecast Package

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Hello everyone :slight_smile:

Could you help me to understand what the term [2,2] means in the expression bellow:

accuracy(fit, data_ts_teste)[2,2]

thanks

2

Looking at the documentation, the accuracy() function returns a matrix. The [2,2] will extract the value in the second row and second column of that matrix. I expect that is the training set's Root Mean Squared Error but you should look at the output of accuracy(fit, data_ts_teste)

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