triplets_to_matrix {CMF} | R Documentation |

## Conversion from triplet/coordinate format to matrix

### Description

This function is the inverse of `matrix_to_triplets()`

.
It converts a matrix represented as a set of triplets into
an object of the class `matrix`

. The missing entries
(the ones not present in the triplet representation) are
filled in as `NA`

.

### Usage

```
triplets_to_matrix(triplets)
```

### Arguments

`triplets` |
A matrix in triplet/coordinate format |

### Details

See `matrix_to_triplets()`

for a description of the
representation.

### Value

The input matrix as a normal matrix of class `matrix`

### Author(s)

Arto Klami and Lauri VĂ¤re

### See Also

### Examples

```
x <- matrix(c(1, 2, NA, NA, 5, 6), nrow = 3)
triplet <- matrix_to_triplets(x)
print(triplet)
xnew <- triplets_to_matrix(triplet)
print(xnew)
```

[Package

*CMF*version 1.0.3 Index]