MCR: A function to estimate climate using the Mutual Climatic...
In rsh249/vegdistmod: Vegetation distribution modeling and spatial informatics

The Mutual Climatic Range method (see especially: Thompson et al 2012) and the Coexistence Approach are fundamentally similar methods implemented in this function to find the minimum interval of coexistence of a list of taxa. This function implements the MCR in both the weighted and unweighted form using a data.frame of climate data attached to species locality information.

1	MCR(ext, method = "unweight", plot = FALSE, file = "mcr_plot")

`ext`	An object generated by the extraction() function in this package or equivalent data.frame containing species IDs and climate data.
`method`	A character string of value "weight" or "unweight" only. Defaults to "unweight" as this is the classic model.
`plot`	Boolean (T or F) to indicate whether coexistence interval plots should be generated for each variable.
`file`	If plot=T then provide a file name stub (prefix) to identify the plots to be generated. To this stub each variable name and the file extension will be appended.

## Not run: 
data(distr);
data(climondbioclim);
extr.raw = extraction(data=distr, clim= climondbioclim, schema='raw');
mcr = MCR(extr.raw, method = 'unweight', plot=FALSE);
mcrw = MCR(extr.raw, method = 'weight', plot=TRUE, file = 'mcr_plot');

## End(Not run)