find_sub {CARRoT} | R Documentation |

## Finds certain subsets of predictors

### Description

Reorders the columns of matrix `a`

according to the ordered elements of array `s`

### Usage

```
find_sub(a,s,j,c,st)
```

### Arguments

`a` |
A |

`s` |
array of numbers of the size N |

`j` |
number of rows in |

`c` |
array of all indices of the predictors |

`st` |
a subset of predictors to be always included into a predictive model |

### Value

Returns a submatrix of matrix `a`

which consits of columns determined by the input array `s`

### Examples

```
#all two-element subsets of 1:3
a<-combn(3,2)
s<-c(3,2,3)
find_sub(a,s,2,1:3)
```

[Package

*CARRoT*version 3.0.2 Index]