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For linear trend analysis what does mape mad and msd mean and what are they used for?
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MAPE (mean absolute percentage error) Measures the accuracy of fitted time series values. It expresses accuracy as a percentage. MAD (mean absolute deviation) Measures the accuracy of fitted time series values. It expresses accuracy in the same units as the data, which helps conceptualize the amount of error MSD (mean squared deviation) Measures the accuracy of fitted time series values. MSD is always computed using the same denominator (the number of forecasts) regardless of the model, so you can compare MSD values across models and therefore you can compare the accuracy of two different models. The trend analysis procedure also displays, along with the graph, three measures to help you determine the accuracy of the fitted values: MAPE , MAD , and MSD . The three measures are not very informative by themselves, but they are used to compare the fits obtained by using different trend models. For all three measures, smaller values generally indicate a better fitting model.
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Usually the expression is employed in the context of the relationship between a dependent variable and another variable. The latter may or may not be independent: often it is time but that is not necessary. In some cases there is some indication that that there is a linear relationship between the two variables and that relationship is referred to as a trend.Note that a trend is not the same as causation. There may appear to be a strong linear trend between two variables but the variables may not be directly related at all: they may both be related to a third variable. Also, the absence of linear trends does not imply that the variables are unrelated: there may be non-linear relationships.
How can you compare two forecasting methods?
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What does trend mean in math?
a trend in math is a pattern or sequence.
What does trend mean in mathematical temrs?
a trend is a pattern or sequence
What does on trend mean?
trend means something that keeps happening.
What does the 'trend of a mean' mean?
a pattern or sequence.
What does contemporary trend mean?
Contemporary trend is how the pattern of life, fashion, is changing at the moment.
