# absolute deviation

(redirected from Mean Absolute Deviation)
Also found in: Acronyms.

## absolute deviation

[′ab·sə‚lüt dēv·ē′ā·shən]
(ordnance)
The shortest distance between the center of the target and the point where a projectile hits or bursts.
(statistics)
The difference, without regard to sign, between a variate value and a given value.
References in periodicals archive ?
Table 1--Models, residual mean square (RME), mean absolute deviation (MAD), mean squared prediction error (MSPE) and index for milk production and protein and fat percentages.
2] (CV), mean absolute deviation, and relative error values calculated for 83 polymers are tabulated in Table 2.
2 Mean Absolute Deviation Index (MADI) The Mean Absolute Deviation Index ( ) has been used in this study for the comparison between the probability distribution for fitting the data.
Table 10 presents the country-level mean absolute deviations of two interesting country groups and the within-country variability at NUTS 1 and NUTS2 levels of the countries in these groups.
It shows good agreement with available test data, the mean absolute deviation being 18%.
Wavelet coefficients statistics include Mean, Median, Mode, Maximum, Minimum, Range, Standard deviation, Median absolute deviation, Mean absolute deviation.
Mean Absolute Deviation (MAD) and Revised Mean Absolute Percentage Errors (RMAPE) are then used to measure the forecasting accuracy from SES with different initial values for a lead time of 3, 5, 10, 15, and 25.
2] modeling, it predicted 27 experiment data points with a mean absolute deviation [MAD] of 3.
Therefore, when data are from independent time series, the Mean Absolute Deviation (MAD) reveals valid the forecasting accuracies from various Moving Average Methods, but not from MAPE or RMAPE.
the mean absolute deviation E [absolute value of X - EX], and the upper mean absolute deviation [E(X - EX).
For this distribution, 25 is the mean absolute deviation, (3) the usual or average amount by which the values drawn differ from the mean of the distribution, which is closely related to the standard deviation.
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