# grid: Generation of Grid In SpherWave: Spherical Wavelets and SW-based Spatially Adaptive Methods

## Description

produces grid points by G\"ottlemann's method, modified G\"ottlemann's method or standard method.

## Usage

 ```1 2 3 4 5 6``` ```modreggrid(l) # for modified G\"{o}ttlemann's regular grid modredgrid(l) # for modified G\"{o}ttlemann's reduced grid gotreggrid(l) # for G\"{o}ttlemann's regular grid gotredgrid(l) # for G\"{o}ttlemann's reduced grid reggrid(l) # for standard regular grid redgrid(l) # for standard reduced grid ```

## Arguments

 `l` levels

## Details

This function generates the grid points on globe.

## Value

 `grid` grid points

## References

Oh, H-S. (1999) Spherical wavelets and their statistical analysis with applications to meteorological data. Ph.D. Thesis, Department of Statistics, Texas A\&M University, College Station.

## Examples

 ``` 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26``` ```rec.reg <- reggrid(3)\$grid rec.red <- redgrid(3)\$grid mod.reg <- modreggrid(3)\$grid mod.red <- modredgrid(3)\$grid got.reg <- gotreggrid(2)\$grid got.red <- gotredgrid(2)\$grid par(mfrow = c(3, 2), mar = c(2.1, 4.1, 4.1, 1.1)) world() points(rec.reg[, 2], rec.reg[, 1], cex = 0.7) title(main = "(a)") world() points(rec.red[, 2], rec.red[, 1], cex = 0.7) title(main="(b)") world() points(mod.reg[, 2], mod.reg[, 1], cex = 0.7) title(main = "(c)") world() points(mod.red[, 2], mod.red[, 1], cex = 0.7) title(main = "(d)") world() points(got.reg[, 2], got.reg[, 1], cex = 0.7) title(main = "(e)") world() points(got.red[, 2], got.red[, 1], cex = 0.7) title(main = "(f)") ```

SpherWave documentation built on April 14, 2017, 1:28 p.m.