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Riex 1.0.2

Enhancements

Bug fixes

Riex 1.0.1

I’m excited to announce that Riex package is now available on CRAN! and you can install using:

install.packages("Riex")

Introduction

Main purpose of RIEX is to efficiently and reliably retrieve stocks and market data via IEX Cloud API. Platform is offered by Investors Exchange Group - IEX Group. To subscribe, visit: IEX Cloud

First Riex release includes basic functions that retrieve data in a standard format - e.g. Data frames. Future releases are expected to:

Get Started

Secret Key/ Token is required for all API callS. It is available via Account Console and assigned the variable sk in the documentation. e.g. sk <- “sk_…”.

Keep your Secret Token safe. Your Secret Token can make any API call on behalf of your account, including changes that may impact billing such as enabling pay-as-you-go charges.

For more details about best practices to store and encrypt Secret Key/ Token check httr package | Managing secrets by Hadley Wickham

Load Package

library(Riex)

Assign valid values to key parameters:

Examples

Account usage details

iex.key.usage()

usage <- iex.key.usage(sk)
print(usage)

Time series - OHLC

TSLA <- iex.chart(x, r, sk)

Use quantmod package for visualization

library(quantmod)

Generate Barchart

barChart(TSLA)

To check available themes to customize visualization

names(quantmod:::.chart.theme)

To apply a different Theme

barChart(TSLA, theme="white")

chartSeries(TSLA)

To create an interactive chart for multiple stocks

Credit: Chris Bow

  1. Retrieve OHLC data
TSLA <- iex.chart("TSLA", r, sk)
GM <- iex.chart("GM", r, sk)

To view top records in time series for TSLA

head(TSLA)

  1. Merge data for both stocks
stocks <- cbind(TSLA$Close, GM$Close)

Change columns names to specify close by symbol

colnames(stocks) <- paste0(c("TSLA", "GM"), ".Close")
  1. Load the following packages
library(dygraphs)
library(dplyr)
  1. Get the first and last date
start(stocks)

[1] “2018-05-16”

end(stocks)

[1] “2019-05-15”

  1. Setup chart
stocks_chart <- dygraph(stocks, main = "TSLA & GM Closing Price - 1 Year") %>%
  dySeries("GM.Close", axis = "y2") %>% 
  dyAxis("y", 
         label = "TSLA") %>%
  dyAxis("y2", 
         label = "GM",
         valueRange = c(20, 50),
         independentTicks = TRUE) %>%
  dyRangeSelector(dateWindow = c("2018-05-16", "2019-05-15")) %>%
  dyRoller()
  1. Display Chart in Viewer pane
stocks_chart

  1. To save in html format and display in browser, following are the steps:

Install and load htmlwidgets

install.packages("htmlwidgets")
library(htmlwidgets)
saveWidget(stocks_chart, 
           "stocks_chart.html",
           selfcontained = TRUE)

Conclusion

IEX Group mission “We’re building fairer markets.” is the motivation for this project and certainly hope to continue supporting their effort and bring value to the community. There has been significant enhancements since launching IEX Cloud API which makes this project really exciting!!

Your feedback and suggestions will be key to continuously improve Riex so it becomes relevant and practical to use. Please provide feedback and report any issues on GitHub.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.