parse.pems: Parse Pems raw data and pick a subset of VDS

In JaredSun26/pems: Functions to process PeMS 30 second traffic data

Description

This funtion reads in the pems data and reform it into a "comfortable" format with columns: time, vds, flow, occ, speed.

Usage

parse.pems(inDir = "./pemsData/", outDir = "./processed/",
  vds = c(1203501, 1203506, 1203534, 1203536, 1212126, 1213891), meta)

Arguments

inDir	The directory where the pems raw files are located, the raw files are in .gz format
outDir	The directory to write the output files, the files are in .csv format
vds	A vector of desired VDS's
meta	The meta data used to parse the data. It is suggested to read in the meta file by function "read.delim"

Examples

meta <- read.delim("./meta/d12_text_meta_2013_12_14.txt")
parse.pems(meta=meta)

JaredSun26/pems documentation built on May 7, 2019, 10:32 a.m.