manual test
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manual test of post a simple way to visualize or summarize monthly returns as well as average monthly returns using R. Interested readers can modify the instrument, period and length of time to their preference.
We start by installing the R packages that will be needed to produce libraries later. For more information about one of the key packages used here, the tidyquant
package, see [2].
Getting and Preparing Data
We will get the data for the S&P 500 Index, symbol = ^GSPC, from Yahoo! Finance. We will then prepare the data for visualization and/or Summarization of results as needed.
R Markdown
This is an R Markdown document. Markdown is a simple formatting syntax for authoring HTML, PDF, and MS Word documents. For more details on using R Markdown see http://rmarkdown.rstudio.com.
When you click the Knit button a document will be generated that includes both content as well as the output of any embedded R code chunks within the document. You can embed an R code chunk like this:
summary(cars) ## speed dist ## Min. : 4.0 Min. : 2.00 ## 1st Qu.:12.0 1st Qu.: 26.00 ## Median :15.0 Median : 36.00 ## Mean :15.4 Mean : 42.98 ## 3rd Qu.:19.0 3rd Qu.: 56.00 ## Max. :25.0 Max. :120.00
Including Plots
You can also embed plots, for example:
Note that the echo = FALSE
parameter was added to the code chunk to prevent printing of the R code that generated the plot.
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