scrape_more2firm: Web Scraping Stock Price Data for Two or More Brands

In KatoPachi/YahooFinance: Web Scraping of Stock Price Data from Yahoo! Finance

Description

This function scrapes stock price data of two or more stocks by using the loop syntax of scrape_onefirm. With the append option, you can select whether to obtain the data combining the data of each brand in the row direction or to obtain it from the list composed of the data of each brand.

Usage

scrape_more2firm(
  code,
  name = NULL,
  start_date,
  end_date,
  datatype,
  append = TRUE
)

Arguments

code	numeric vector. Specify brand codes.
name	character vector. Specify company name. If specified, ignore code argument and find out brand code by code_detect.
start_date	numeric. Specify the start date of the stock price data you want to acquire in the format of yyyymmdd.
end_date	numeric. Specify the end date of the stock price data you want to acquire in the format of yyyymmdd.
datatype	character. Specify the type of stock price data. If datatype = "d", get daily data. If datatype = "w", get weekly data. If 'datatype = "m", get monthly data.
append	logical. Do you want to combine the stock price data of each stock in the row direction? Default is append = TRUE.

Value

If append = TRUE, return a tibble object containing stock price data of multiple brands. If append = FALSE, return a list object in which the stock price data of each brand is an element. The name of each element is a string with "b" in front of the corresponding brand code. For example, if the brand code is 1000, the stock price data for that brand can be obtained with (object name)$b1000.

Examples

# Combine the 2014 monthly stock price data of
# Sony Group (6758) and Nintendo Co., Ltd. (7974)
# into one data frame
scrape_more2firm(
  c(6758, 7974),
  start_date = 20140101,
  end_date = 20141231,
  datatype = "m"
)

# Combine the 2014 monthly stock price data of
# APAMAN and YU-WA Creation Holdings
# into one data frame
scrape_more2firm(
  name = c("APAMAN", "YU-WA Creation Holdings"),
  start_date = 20140101,
  end_date = 20141231,
  datatype = "m",
)

# Save the 2014 monthly stock price data of
# Sony Group (6758) and Nintendo Co., Ltd. (7974)
# a list named dt
dt <- scrape_more2firm(
  c(6758, 7974),
  start_date = 20140101,
  end_date = 20141231,
  datatype = "m",
  append = FALSE
)
dt$b6758 #extract Sony Group
dt$b7974 #extract Nintendo

KatoPachi/YahooFinance documentation built on Feb. 9, 2022, 3:22 p.m.