temporary_grid_search: Temporary grid search

In AirExposure: Exposure Model to Air Pollutants Based on Mobility and Daily Activities

Temporary grid search

Description

The aim is to search for the grid with the name obtained in the function time_grid in the local path entered. If only one hour is entered, it returns the grid in shapefile format saved in the local directory. In the case of a range of hours, an average grid of the time range is returned.

Usage

temporary_grid_search(start_hour, end_hour = NULL, dir, time_format, gridID, shapeValue)

Arguments

start_hour	String vector that represents the date and time of interest to estimate the exposure, indicating the start time of the activity and/or the trip.
end_hour	String vector that represents the date and time of interest to estimate the exposure, indicating the end of the activity and/or the trip. If you want to obtain a specific time interval that denotes the duration of an activity and/or trip of the same day, you need to provide this parameter. If not, it defaults to NULL.
dir	String vector with the path to the local directory where the shapefiles that have the information about the concentrations of the pollutants of interest are located.
time_format	String vector representing the structure using special strptime abbreviations, indicating how the date data was provided (e.g.
gridID	String vector with the name of the field containing the unique identifier (ID) for the grid. The ID is a unique number assigned to each pixel within the concentration grid in the shapefile (e.g. GRI1_ID)
shapeValue	String vector with the name of the field corresponding to the concentrations in the shapefile files (e.g. value)

Details

The aim is to search for the grid with the name obtained in the function time_grid in the local path entered. If only one hour is entered, it returns the grid in shapefile format saved in the local directory. In the case of a range of hours, an average grid of the time range is returned.

Value

This function is used internally in the model of dynamic and fixed variables. The output is the reading of the grid in local path, where a file of class "sf" and "data.frame" is read.

Author(s)

Josefina Urquiza, Maria Florencia Tames, Maela Lupo, Alfredo Rigalli

Maintainer: Josefina Urquiza <[e-mail]>

AirExposure documentation built on Sept. 11, 2024, 7:47 p.m.