# R-Squared

#### Description <a href="#description_100" id="description_100"></a>

This indicator belongs to the linear regression series. R-Squared is the correlation coefficient that specifies the quality of the linear regression line.

It is the calculation that gives R-Squared its name – the value is the square of the correlation coefficient, which in mathematics is prefixed with the Greek letter Rho (P).

See [*Linear Regression*](https://agenatrader.github.io/AgenaIndicator-documentation/indicators_oscillators/#linearregression), [*LinRegSlope*](https://agenatrader.github.io/AgenaIndicator-documentation/indicators_oscillators/#linregslope), [*LinRegIntercept*](https://agenatrader.github.io/AgenaIndicator-documentation/indicators_oscillators/#linregintercept).

#### Interpretation <a href="#interpretation_49" id="interpretation_49"></a>

The value of the oscillator fluctuates between 0 and 1. By default, the upper boundary line is located at 0.75, and the lower border is at 0.2. If the prices are in a sideways movement, the data is scattered around the regression line. R-Squared will have a value of 0 in the aforementioned situation. In a strong trend phase, the prices will remain within a tight range for an extended period of time; if these are located close to the regression line then the R-Squared indicator will have a value of 1. Stanley Kroll and Tuchar Chande used the correlation coefficient as a trend filter in their book “*The new technical trader*”.

#### Further information <a href="#further-information_37" id="further-information_37"></a>

<http://www.blastchart.com/Community/IndicatorGuide/Indicators/LinearRegressionRSquared.aspx>

#### Usage <a href="#usage_96" id="usage_96"></a>

```csharp
RSquared(int period)
RSquared(IDataSeries inSeries, int period)
RSquared(int period)[int barsAgo]
RSquared(IDataSeries inSeries, int period)[int barsAgo]
```

#### Return value <a href="#return-value_94" id="return-value_94"></a>

**double**

When using this method with an index (e.g. **RSquared**(8)\[**int** barsAgo] ), the value of the indicator will be issued for the referenced bar.

#### Parameters <a href="#parameters_87" id="parameters_87"></a>

inSeries Input data series for the indicator

period Number of bars included in the calculations

#### Visualization <a href="#visualization_91" id="visualization_91"></a>

![R-Squared](https://agenatrader.github.io/AgenaIndicator-documentation/media/RSquared.jpg)

#### Example <a href="#example_91" id="example_91"></a>

```csharp
//Output for the value of R-Squared
Print("The current value of R-Squared is: " + RSquared(8)[0]);
```


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