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| Function | new_stddev_struct |
| Include file | STDDEV_R.H |
| Prototype | STDDEV * new_stddev_struct( int stddev_length ) |
| Remarks | Allocate, initialize and return a virgin standard deviation structure. |
| Function | reset_stddev_struct |
| Include file | STDDEV_R.H |
| Prototype | void reset_stddev_struct( STDDEV *stddev_ptr ) |
| Remarks | Reset a standard deviation data structure for a new data series. |
| Function | update_stddev_struct |
| Include file | STDDEV_R.H |
| Prototype | void update_stddev_struct( STDDEV *stddev_ptr , float new_data ) |
| Remarks | Calculate a N-population standard deviation (as well as a few of other common stat values (min, max, SMA, EMA, summ & variance) ). Once we have collected enough data to calc the STDDEV, stddev_ptr->enough_data will be set to TRUE and stddev_ptr->std_dev can be used. |
| Function | free_stddev_struct |
| Include file | STDDEV_R.H |
| Prototype | void free_stddev_struct( STDDEV *stddev_ptr ) |
| Remarks | Return the STDDEV and its sub-structure memory to the system. |
