u_dateR: Creates a data frame of paths, folder names and dates.

In Bartesto/RSSApkg: Utility functions for remote sensing and spatial analysis work

Description

u_dateR creates a data frame of paths, folder names and dates from the contents of a folder.

Usage

u_dateR(path, archive, pat = ".jpeg")

Arguments

path	Character string filepath to the path/row of satellite imagery to check. Can also be a folder of jpegs or some other date named files.
archive	A logical scalar. TRUE will assume path is indicating RSSA internal USGS archive. FALSE can be used when querying a QA jpeg folder or the like.
pat	Pattern to search for in a non-USGS imagery archive. Defaults to ".jpeg".

Details

This output of this function will hold paths, folder names and dates that will be used for other functions such as jpegR and extractR.

Value

For a USGS imagery archive the query will return a data frame with:

• path - a column of character string file paths

• folds - a column of character string folder names

• dates - a column of date class dates

For a non-USGS archive the query will return a data frame with:

• path - a column of character string file paths

• folds - a column of character string folder names

Author(s)

Bart Huntley, [e-mail]

Examples

## Not run: 
u_dateR(path = "W:/usgs/115078", archive = TRUE)
u_dateR(path = "Z:/DEC/working/QA...", archive = FALSE, pat = ".jpeg")

## End(Not run)

Bartesto/RSSApkg documentation built on May 23, 2019, 9:35 p.m.