View source: R/find_furthestsum_points.R

find_furthestsum_points | R Documentation |

Function which finds the furthest sum points in order to be used as initial solution in archetypal analysis.

```
find_furthestsum_points(df, kappas, nfurthest = 100, nworkers = NULL,
sortrows = TRUE, doparallel = TRUE)
```

`df` |
The data frame with dimensions n x d |

`kappas` |
The number of archetypes |

`nfurthest` |
The number of applications for FurthestSum algorithm |

`nworkers` |
The number of logical processors that will be used.
Hint: set it such that |

`sortrows` |
If it is TRUE, then rows will be sorted |

`doparallel` |
If it is set to TRUE, then parallel processing will be performed
for the |

A list with members:

outmost, the first kappas furthest sum points as rows of data frame

outmostall, all the furthest sum points that have been found as rows of data frame

outmostfrequency, a matrix with frequency and cumulative frequency for furthest sum rows

`FurthestSum`

```
data("wd3") #3D demo
df = wd3
yy = find_furthestsum_points(df, kappas = 4, nfurthest = 10, nworkers = 2)
yy$outmost
yy$outmostall
yy$outmostfrequency
```

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