loaloa {geostatsp} | R Documentation

## Loaloa prevalence data from 197 village surveys

### Description

Location and prevalence data from villages, elevation an vegetation index for the study region.

### Usage

    data("loaloa")

### Format

`loaloa` is a SpatialPolygonsDataFrame of the data, with columns `N` being the number of individuals tested and `y` being the number of positives. `elevationLoa` is a raster of elevation data. `eviLoa` is a raster of vegetation index for a specific date. `ltLoa` is land type. `ltLoa` is a raster of land types. 1 2 5 6 7 8 9 10 11 12 13 14 15 `tempLoa` is a raster of average temperature in degrees C.

### Source

http://www.leg.ufpr.br/doku.php/pessoais:paulojus:mbgbook:datasets for the loaloa data, https://lpdaac.usgs.gov/dataset_discovery/modis/modis_products_table for EVI and land type and http://srtm.csi.cgiar.org for the elevation data.

### Examples

    data("loaloa")
    plot(loaloa, main="loaloa villages")

    # elevation
    plot(elevationLoa, col=terrain.colors(100), main="elevation")
    points(loaloa)

    # vegetation index
    plot(eviLoa, main="evi")
    points(loaloa)

    plot(tempLoa, main="temperature")
    points(loaloa)

    # land type, a categorical variable
    plot(ltLoa)
    mapmisc::legendBreaks("bottomleft",ltLoa, bty='n')
    points(loaloa)

[Package geostatsp version 1.7.8 Index]