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Technical Studies Reference


Z-Score

This study calculates and displays the Z-Score of the data specified by the Input Data Input.

Let \(X\) be a random variable denoting the Input Data Input, and let \(X_t\) be the value of the Input Data at Index \(t\). Let the Inputs Mean Length and Standard Deviation Length be denoted as \(n_{\mu}\) and \(n_{\sigma}\), respectively. Then we denote the Z-Score at Index \(t\) for the given Inputs as \(Z_t(X,n_{\mu},n_{\sigma})\), and we compute it in terms of a Simple Moving Average and a Standard Deviation for \(t \geq \max\{n_{\mu},n_{\sigma}\} - 1\) as follows.

\(\displaystyle{Z_t(X,n_{\mu},n_{\sigma}) = \frac{X_t - MA_t(X,n_{\mu})}{\sigma_t(X,n_{\sigma})}}\)

Spreadsheet

The spreadsheet below contains the formulas for this study in Spreadsheet format. Save this Spreadsheet to the Data Files Folder.

Open it through File >> Open Spreadsheet.

Z_Score.350.scss


*Last modified Wednesday, 03rd January, 2018.