# ppcor-package

From ppcor v1.1
by Seongho Kim

##### Partial and Semi-partial (Part) Correlation

Calculates parital and semi-partial (part) correlations along with p value.

- Keywords
- htest

##### Details

Package: |

ppcor |

Type: |

Package |

Version: |

1.0 |

Date: |

2011-06-14 |

License: |

GPL-2 |

##### References

Kim, S. (2015) ppcor: An R Package for a Fast Calculation to Semi-partial Correlation Coefficients. Communications for Statistical Applications and Methods, 22(6), 665-674.

##### Examples

```
# data
y.data <- data.frame(
hl=c(7,15,19,15,21,22,57,15,20,18),
disp=c(0.000,0.964,0.000,0.000,0.921,0.000,0.000,1.006,0.000,1.011),
deg=c(9,2,3,4,1,3,1,3,6,1),
BC=c(1.78e-02,1.05e-06,1.37e-05,7.18e-03,0.00e+00,0.00e+00,0.00e+00
,4.48e-03,2.10e-06,0.00e+00)
)
# partial correlation
pcor(y.data)
# partial correlation between "hl" and "disp" given "deg" and "BC"
pcor.test(y.data$hl,y.data$disp,y.data[,c("deg","BC")])
pcor.test(y.data[,1],y.data[,2],y.data[,c(3:4)])
pcor.test(y.data[,1],y.data[,2],y.data[,-c(1:2)])
# semi-partial (part) correlation
spcor(y.data)
# semi-partial (part) correlation between "hl" and "disp" given "deg" and "BC"
spcor.test(y.data$hl,y.data$disp,y.data[,c("deg","BC")])
spcor.test(y.data[,1],y.data[,2],y.data[,c(3:4)])
spcor.test(y.data[,1],y.data[,2],y.data[,-c(1:2)])
```

*Documentation reproduced from package ppcor, version 1.1, License: GPL-2*

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