sbp_basis {coda.base} | R Documentation |

`ilr_basis`

using a sequential binary partition or
a generic coordinate system based on balances.Isometric log-ratio basis based on Balances
Build an `ilr_basis`

using a sequential binary partition or
a generic coordinate system based on balances.

```
sbp_basis(..., data = NULL, silent = F)
```

`...` |
balances to consider |

`data` |
composition from where name parts are extracted |

`silent` |
inform about orthgonality |

matrix

```
X = data.frame(a=1:2, b=2:3, c=4:5, d=5:6, e=10:11, f=100:101, g=1:2)
sbp_basis(b1 = a~b+c+d+e+f+g,
b2 = b~c+d+e+f+g,
b3 = c~d+e+f+g,
b4 = d~e+f+g,
b5 = e~f+g,
b6 = f~g, data = X)
sbp_basis(b1 = a~b,
b2 = b1~c,
b3 = b2~d,
b4 = b3~e,
b5 = b4~f,
b6 = b5~g, data = X)
# A non-orthogonal basis can also be calculated.
sbp_basis(b1 = a+b+c~e+f+g,
b2 = d~a+b+c,
b3 = d~e+g,
b4 = a~e+b,
b5 = b~f,
b6 = c~g, data = X)
```

[Package *coda.base* version 0.4.1 Index]