Set default arguments for a getSymbols source
You can also use setDefaults()
on individual getSymbols()
source methods. This exercise will teach you how to change the default value for the from
argument to getSymbols.yahoo()
.
You can find the arguments for a specific method by using help()
(e.g. help("getSymbols.yahoo")
or by calling args()
to print them to the console (e.g. args(getSymbols.yahoo)
). Calling getDefaults()
will show you the current default values (if there are any).
Remember, you are not supposed to call getSymbols.yahoo()
directly!
Este ejercicio forma parte del curso
Importing and Managing Financial Data in R
Instrucciones del ejercicio
- Use the
args()
function to print all the default arguments togetSymbols.yahoo()
. - Set the default of
from
forgetSymbols.yahoo()
to "2000-01-01". - Use
getDefaults()
to confirm that thefrom
default was set correctly.
Ejercicio interactivo práctico
Prueba este ejercicio y completa el código de muestra.
# Look at getSymbols.yahoo arguments
# Set default 'from' value for getSymbols.yahoo
setDefaults(___, ___ = "2000-01-01")
# Confirm defaults were set correctly
getDefaults("___")