Import text files in other formats
The previous exercise taught you how to import well-formatted CSV data using getSymbols(). Unfortunately, most data are not well-formatted.
The zoo package provides several functions to import text files as zoo objects. The main function is read.zoo(), which wraps read.table(). The xts class extends zoo, so you can easily convert the result of read.zoo() into an xts object by using as.xts().
In this exercise, you will learn how you can use read.zoo() to import the same AMZN.csv data from the previous exercise.
Este ejercicio forma parte del curso
Importing and Managing Financial Data in R
Instrucciones del ejercicio
- Use
read.zoo()to importAMZN.csv. Assign the output to an object namedamzn_zoo. - Convert
amzn_zooto an xts object. Assign the output to an object namedamzn_xts. - Look at the first few rows of
amzn_xts.
Ejercicio interactivo práctico
Prueba este ejercicio y completa el código de muestra.
# Import the AMZN.csv file using read.zoo
amzn_zoo <- read.zoo("___", sep = "___", header = ___)
# Convert to xts
# Look at the first few rows of amzn_xts