Read data from the database

Reads data for a specfied time window from the database

read_db(fn, strt, fnsh, tz = "UTC")

Arguments

fn

file name

strt

POSIXct (or interger) object for the start of the period

fnsh

POSIXct (or interger) object for the end of the period

tz

time zone used for the output

Value

an xts object containing any data in the time period