mean.variogram | R Documentation |

This function takes a list of variogram objects and calculates its number-weighted average variogram.

```
## S3 method for class 'variogram'
mean(x,...)
```

`x` |
A |

`...` |
Additional variograms if specified individually. |

Returns a `variogram`

object which is a dataframe containing the lag, the semi-variance estimate at that lag, and the approximate degrees of freedom associated with the semi-variance estimate.

Variogram averaging should only be used when there is a degree of similarity across individual variograms.

J. M. Calabrese and C. H. Fleming

C. H. Fleming, J. M. Calabrese, T. Mueller, K.A. Olson, P. Leimgruber, W. F. Fagan, “From fine-scale foraging to home ranges: A semi-variance approach to identifying movement modes across spatiotemporal scales”, The American Naturalist, 183:5, E154-E167 (2014) \Sexpr[results=rd]{tools:::Rd_expr_doi("10.1086/675504")}.

`plot.variogram`

, `variogram`

.

```
# Load package and data
library(ctmm)
data(buffalo)
# Calculate a list of variograms for all similar individuals in the dataset
# the 4th buffalo has a different sampling rate
SVFS <- lapply( buffalo[-4] , variogram )
# alternatively, we could variogram all at coarsest scale with variogram option dt
# Calculate the average variogram
SVF <- mean(SVFS)
# Plot the mean variogram
plot(SVF)
```

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