On some Derivatives of Vector-Matrix Products Useful for Statistics
Journal Title: Current Trends on Biostatistics & Biometrics - Year 2018, Vol 1, Issue 2
Abstract
In this brief description, we will use the numerator layout [1], and will tacitly assume that all products are conformable. and since š°tš± is a scalar, we are facing a particular case of the derivative of a scalar Ī» with respect to a vector, e.g., āš±Ī»=(āš±1Ī» ..... āš±nĪ») and it must also be āš±(š°tš±)=āš±(š±tš°) . Moreover, it is easy to demonstrate that using the denominator layout, the derivative would have been āš±(š°tš±)=š°.
Authors and Affiliations
Michele Nichelatti
Keywords
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- EP ID EP641947
- DOI 10.32474/CTBB.2018.01.000110
- Views 48
- Downloads 0
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