# make.grid: makes spatial grid In FLightR: Reconstruct Animal Paths from Solar Geolocation Loggers Data

## Description

This function makes a rectangular grid with use defined boundaries and probabilities of being stationary.

## Usage

 ``` 1 2 3 4 5 6 7 8 9 10 11``` ```make.grid( left = -180, bottom = -90, right = 180, top = 90, distance.from.land.allowed.to.use = c(-Inf, Inf), distance.from.land.allowed.to.stay = c(-Inf, Inf), plot = TRUE, return.distances = FALSE, probability.of.staying = 0.5 ) ```

## Arguments

 `left` - left boundary in degrees (-180 <= left <= 180) `bottom` - lower boundary in degrees (-90 <= bottom <= 90) `right` - right boundary in degrees (-180 <= right <= 180) `top` - top boundary in degrees (-90 <= right <= 90) `distance.from.land.allowed.to.use` - define how far from the shore animal could occur. Unit - km, negative values are for inland and positive for offshore directions. `Inf` stays for infinity `distance.from.land.allowed.to.stay` - define how far from the shore animal could stay stationary between twilights. Unit - km, negative values are for inland and positive for offshore directions. `Inf` stays for infinity `plot` show a plot of final grid. `return.distances` - return distances to the shoreline `probability.of.staying` - assigned probability value for grid cells that do not satisfy `distance.from.water.allowed.to.stay`

## Value

dataframe with coordinates(lon and lat) and `probability.of.staying`

## Author(s)

Eldar Rakhimberdiev

## Examples

 ```1 2 3``` ```Grid<-make.grid(left=-14, bottom=30, right=13, top=57, distance.from.land.allowed.to.use=c(-Inf, Inf), distance.from.land.allowed.to.stay=c(-Inf, Inf)) ```

FLightR documentation built on July 6, 2021, 5:08 p.m.