Searches a directory containing hourly pollutant grid shapefiles and
returns the filename corresponding to the requested date and hour.
Usage
hourly_grid(hour, time_format, dir)
Arguments
- hour
Character. Date and time used to identify the grid file.
- time_format
Character. Format used to parse hour.
- dir
Character. Directory containing the hourly grid shapefiles.
Value
A character string containing the name of the matching shapefile.
Details
Hourly grid shapefiles are expected to follow the naming convention
"YYYY-mm-dd_HHMM.shp".
Examples
if (FALSE) { # \dontrun{
hourly_grid(
hour = "2019-08-01 08:00:00",
time_format = "%Y-%m-%d %H:%M:%S",
dir = "path/to/grids"
)
} # }