Calculates the Standard Deviation indicator on data, stored in array, and returns its value 
- Parameters
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    | array | Array with data |  | total | The number of items to be counted. 0 means the whole array |  | ma_period | Averaging period for calculation of the main line |  | ma_shift | MA shift. Indicator line offset relate to the chart by timeframe |  | ma_method | Moving Average method. It can be any of following values: 
 
| MODE_SMA | Simple averaging |  
| MODE_EMA | Exponential averaging |  
| MODE_SMMA | Smoothed averaging |  
| MODE_LWMA | Linear-weighted averaging |  |  | shift | Index of the value taken from the indicator buffer (shift relative to the current bar the given amount of periods ago) |  
 
- Returns
- Numerical value of the Standard Deviation indicator, calculated on data, stored in array