Statistical forecasting

Mean directional accuracy

Mean directional accuracy (MDA), also known as mean direction accuracy, is a measure of prediction accuracy of a forecasting method in statistics. It compares the forecast direction (upward or downward) to the actual realized direction. It is defined by the following formula: where At is the actual value at time t and Ft is the forecast value at time t. Variable N represents number of forecasting points. The function is sign function and is the indicator function. In simple words, MDA provides the probability that the under study forecasting method can detect the correct direction of the time series. MDA is a popular metric for forecasting performance in economics and finance. MDA is used in economics applications where the economist is often interested only in directional movement of variable of interest. As an example in macroeconomics, a monetary authority who wants to know the direction of the inflation, to raise or decrease interest rates if inflation is predicted to rise or drop respectively. Another example can be found in financial planning where the user wants to know if the demand has increasing direction or decreasing trend. (Wikipedia).

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How do you understand the direction of an angle

Learn how to determine the magnitude and direction of a vector. The magnitude of a vector is the length of the vector. The magnitude of a vector is obtained by taking the square root of the sum of the squares of the components of the vector. The direction of a vector is obtained by taking

From playlist Vectors

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How to determine the angle of a vector as well as use angles to represent vectors

Learn how to determine the magnitude and direction of a vector. The magnitude of a vector is the length of the vector. The magnitude of a vector is obtained by taking the square root of the sum of the squares of the components of the vector. The direction of a vector is obtained by taking

From playlist Vectors

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Learn how to determine the magnitude and direction of a vector. The magnitude of a vector is the length of the vector. The magnitude of a vector is obtained by taking the square root of the sum of the squares of the components of the vector. The direction of a vector is obtained by taking

From playlist Vectors

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Learn how to identify the magnitude and direction from a vector given in that form

Learn how to determine the magnitude and direction of a vector. The magnitude of a vector is the length of the vector. The magnitude of a vector is obtained by taking the square root of the sum of the squares of the components of the vector. The direction of a vector is obtained by taking

From playlist Vectors

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Find the magnitude and direction of resultant vector given bearings

Learn how to determine the magnitude and direction of a vector. The magnitude of a vector is the length of the vector. The magnitude of a vector is obtained by taking the square root of the sum of the squares of the components of the vector. The direction of a vector is obtained by taking

From playlist Vectors

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๐Ÿ‘‰ Learn how to define angle relationships. Knowledge of the relationships between angles can help in determining the value of a given angle. The various angle relationships include: vertical angles, adjacent angles, complementary angles, supplementary angles, linear pairs, etc. Vertical a

From playlist Angle Relationships

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CCSS What is the difference between Acute, Obtuse, Right and Straight Angles

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More resources available at www.misterwootube.com

From playlist Further Linear Relationships

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From playlist Papers Explained

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From playlist 2022 Graduate Summer School on Algorithmic Fairness

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Adversarial Examples Are Not Bugs, They Are Features

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From playlist Adversarial Examples

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From playlist Statistics and computation

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CCSS What is the Angle Addition Postulate

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From playlist Angle Relationships

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From playlist Differential Privacy for ML

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From playlist MIT 6.801 Machine Vision, Fall 2020

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From playlist Explainability and Ethics

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DIRECT 2021 14 Tuning Deep Learning Models Maldonado-Cruz

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From playlist DIRECT Consortium, The University of Texas at Austin

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How to find the direction of a vector as a linear combination

Learn how to determine the magnitude and direction of a vector. The magnitude of a vector is the length of the vector. The magnitude of a vector is obtained by taking the square root of the sum of the squares of the components of the vector. The direction of a vector is obtained by taking

From playlist Vectors

Related pages

Median absolute deviation | Sign function | Indicator function | Statistics | Mean absolute percentage error