Package index • windscape

All functions

add_coords(): Augment a raster object, adding layers containing cell row-column indices.

as_wind_rose(): Create a wind_rose object from a set of raster layers

aspect(): Aspect ratio of grid cell at a given latitude

birch: Silver birch landscape genetic data from Tsuda et al. (2017)

cell_distance(): Pairwise distances between cell centroids

cfsr_dl(): Download wind data from the Climate Forecast System Reanalysis (CFSR)

cfsr_dl_land(): Download land-water raster from the Climate Forecast System Reanalysis (CFSR)

cfsr_usa: Wind time series for the contiguous US

check_cell_distance(): Compare point distances to cell distances

circ_sd(): Weighted circular standard deviation

direction(): Calculate the direction of a vector based on its x and y components.

downscale(): Downscale a wind rose raster data to higher spatial resolution

flow(): A wind transition function to supply to `transition_stack`.

generate_particles(): Generate initial particle locations

geo_grid(): Generate spatial grid of points

iter_length(): Iteration step length of a random walk

katrina: Hurricane Katrina wind field data

least_cost_distance(): Pairwise wind distances between points

least_cost_surface(): Accumulated wind cost surface

mantel_test(): Mantel test

pairwise_means(): Convert asymmetric pairwise matrix to symmetrical matrix of pairwise means

pairwise_ratios(): Convert data to reciprocally symmetrical pairwise matrix

particle_flow(): Simulate the flow of particles across a wind field

point_distance(): Pairwise distances between points

random_walk(): Simulate diffusion by wind advection

read_wind_rose(): Load a wind_rose from a raster file on disk

rose(): Calculate 8-neighbor edge loadings from a time series of u and v windspeeds

rw_max_step(): Maximum iteration duration for a random walk

spin90(): Rotate a set of bearings counterclockwise by 90 degrees

tesselate(): Extend a global raster with copies of itself

trails_to_sf(): Convert particle trails data frame to sf

transition_stack(): A modified version of `gdistance::transition`,

vrcd(): variable-resolution costDistance

weight_conductance(): Weight a windrose conductance raster

wind_field-class: An S4 object class representing a wind field

wind_field(): Generate a wind field data set from a pair of rasters.

wind_graph-class: An S4 object class representing a wind graph

wind_graph(): Build a wind connectivity graph

wind_rose-class: An S4 object class representing a wind rose

wind_rose(): Summarize a time series of wind fields into a wind rose

wind_series-class: An S4 object class representing a wind field time series

wind_series(): Generate a wind field time series data set from a set of rasters.

ws_summarize(): Summary statistics for a windshed