Question: using Rstudio # Take a vector below. Assume that we start summation from the first element adding element by element. Our task is to find

using Rstudio

# Take a vector below. Assume that we start summation from the first element adding element by element. Our task is to find the maximal number of elements we can take while the total summation stays below a given threshold.

For example: x <- c(1, 2, 3, 4, 5, 6). This summation (or running total, or cumulative sum) is c(1, 3, 6,10,15,21). Hence, for the summation to stay below a threshold 13 you can take 4 first numbers.

x <- runif(50) # our test vector

y <- 10 # our threshold

We have to make two custom functions, each function should take a vector of numbers and threshold level; and it should return the number of values to take before we hit a threshold.

# First function should use control flow operators and no vectorisation.

# Second function should use vectorisation/indexing and function cumsum(), but no control flow operators.

Please write down the code below:

------------code-----------

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!