Description Usage Arguments Details Author(s) Examples

Transforms Grid Object (the output of the gwfa function) into SpatialPolygonsDataFrame.

1 2 |

`df` |
the |

`epsg` |
EPSG code |

`cell_size` |
leave empty |

`bandwith` |
leave empty |

`radius` |
leave empty |

`q` |
leave empty |

`sample_size` |
leave empty |

Returns a `spatialPolygonsdataframe`

.

Cecile Tannier, Stephane G. Roux and Francois Semecurbe

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | ```
library(gwfa)
data("mariegalante")
test=gwfa(points=mariegalante,q=0,radius=(20*2^((0:6)/2)),
bandwith=1600,sample_size=500,cell_size=2000)
test=test[test$count>100,]#select the cells with at least 100 points.
#estimate the fractal dimension on the 7 radius
X=cbind(rep(1,length(test@radius)),log2(test@radius))
fit_frac_dim=(do.call(cbind,test[,4:10]))%*%t(solve(t(X)%*%X)%*%t(X))
test$dimfrac=fit_frac_dim[,2]
#create spatial polygon dataframe
shp=grid_to_spdf(test,"2970")
``` |

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