MC Utilities {entropart} | R Documentation |

## Manipulation of meta-communities

### Description

Tools to manipulate meta-communities. From a list of meta-communities, `MergeMC`

creates a metacommunity whose communities are each original metacommunity. `MergeC`

creates a metacommunity whose communities are each original community. `ShuffleMC`

randomly assigns original communities to a metacommunity, keeping original weights, and returns a list of meta-communities.

### Usage

```
MergeMC(MClist, Weights = rep(1, length(MClist)), CheckArguments = TRUE)
MergeC(MClist, Weights = rep(1, length(MClist)), CheckArguments = TRUE)
ShuffleMC(MClist, Weights = rep(1, length(MClist)), CheckArguments = TRUE)
```

### Arguments

`MClist` |
A list of |

`Weights` |
A vector of numbers containing the weight of each metacommunity of the list. It does not have to be normalized to sum to 1. |

`CheckArguments` |
Logical; if |

### Details

`MergeMC`

is used for hierarchical partitioning of diversity. The gamma diversity of communities of the list becomes alpha diversity of the merged meta-community.

`MergeC`

creates a new meta-community by mixing original ones. Original communities are kept, their new weight is the product of their original weight and the weight of their original meta-community.

`ShuffleMC`

is used for simulations of the null hypothesis that all metacommunities of the list are identical.

### Value

`MergeMC`

and `MergeC`

return a `MetaCommunity`

.

`ShuffleMC`

returns a `list`

of `MetaCommunity`

objects.

### See Also

### Examples

```
# First meta-community
(df <- data.frame(C1 = c(10, 10, 10, 10), C2 = c(0, 20, 35, 5),
C3 = c(25, 15, 0, 2), row.names = c("sp1", "sp2", "sp3", "sp4")))
w <- c(1, 2, 1)
MC1 <- MetaCommunity(Abundances = df, Weights = w)
# Second meta-community
(df <- data.frame(C1 = c(10, 4), C2 = c(3, 4), row.names = c("sp1", "sp5")))
w <- c(3, 2)
MC2 <- MetaCommunity(Abundances = df, Weights = w)
# Merge communities
plot(MergeC(list(MC1, MC2)), main="Merged communities")
# Merge metacommunities
plot(MergeMC(list(MC1, MC2)), main="Merged meta-communities")
smc <- ShuffleMC(list(MC1, MC2))
plot(MergeMC(smc), main="Shuffled, then Merged meta-communities")
```

*entropart*version 1.6-13 Index]