Disclaimer: The content of this RMarkdown note came from a course called Introduction to R for Finance in datacamp.

Question 1

What are R’s three most basic data types? Of the three, what would be decimal numbers like 3.1? Type your answer below.

R most 3 basic data types are numeric, character, logical. of the three decimnal numbers would be numeric.

Question 2

What are R’s five most common types of objects? Type your answer below.

The 5 most common types of objects are vector, matrix, data frame, factor, list.

2.a.

Compare vectors and matrices. What are similarities and differences? Type your answer below. Vector and matrice both have the same data type. The differnce is the vector can only be a row or a colloum and a matrice consist of rows and colloums. ### 2.b Compare matrices and data frames. What are similarities and differences? Type your answer below.

Similarity-Matrix consists of rows and colllums and has the same data type. Difference- A data frame can gave multiple data types in the same in the framne

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    Monday       1
## 2   Tuesday       2
## 3 Wednesday       3
## 4  Thursday       4
## 5    Friday       5

Question 4

Subset rows with daily returns greater than or equal to 4%.

##       days returns
## 4 Thursday       4
## 5   Friday       5