Disclaimer: The content of this RMarkdown note came from a course called Introduction to R for Finance in datacamp.
What are R’s three most basic data types? Of the three, what would be decimal numbers like 3.1? Type your answer below. 1. Numeric: numbers 2. Character: texts 3. Logical: TRUE or FALSE Numerical is the type that would include 3.1 ## Question 2 What are R’s five most common types of objects? Type your answer below. Vector,List,matrix,data frame, and factor ### 2.a. Compare vectors and matrices. What are similarities and differences? Type your answer below. Matrices have only one type of data and use rows and columns while vectors are a collection of data ### 2.b Compare matrices and data frames. What are similarities and differences? Type your answer below. The only difference is that a data frame can hold more than one data type ## Question 3 Create a vector, “returns”, in place of “ret”; and assign 5 return values, 1 through 5 in place of (5, 2, 3, 7, 8, 3, 5, 9, 1, 4, 6, 3). Create another vector, “days”, in place of “months”; and assign 5 days, Monday through Friday in place of (“Jan”, “Feb”, “Mar”, “Apr”, “May”, “Jun”, “Jul”, “Aug”, “Sep”, “Oct”, “Nov”, “Dec”). Then, create a data frame, “daily_returns”, in place of “monthly_returns” by combining days and returns.
## days returns
## 1 Mon 1
## 2 Tue 2
## 3 Wed 3
## 4 Thur 4
## 5 Fri 5Subset rows with daily returns greater than or equal to 4%.
## days returns
## 4 Thur 4
## 5 Fri 5