S133HW1 - Stat 133, Fall 2010 Homework 1: Writing R...

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Unformatted text preview: Stat 133, Fall 2010 Homework 1: Writing R Expressions Due Friday, Sept. 10 at 11 pm on bSpace Turn in a plain text file containing the R commands you use to solve the following problems. Put your name in a comment at the top of the file, and add comments throughout to indicate parts of the assignment and problem numbers. Some problems involve functions we have not covered in class; for these you need to use help and help.search . Part 1: Practice with R Expressions 1. Create a vector called mult3 containing every number between 4 and 127 that is evenly divisible by 3. 2. Print to the screen the values in mult3 that are also evenly divisible by 9 (but dont change mult3 itself). 3. Remove every element of mult3 that is less than 100. 4. Generate a vector called x containing 100 random samples from a uniform distribu- tion. Calculate its mean. 5. Using implicit coercion, calculate what fraction of the values in x are less than 0.6....
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S133HW1 - Stat 133, Fall 2010 Homework 1: Writing R...

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