How can you combine vectors into a dataframe in R. To do that, we can use the function of data.frame() to convert vetors into a dataframe in R. The following is the example. Step 1: Generating Vetors Output: [1] “City1” “City1” “City1” “City1” “City1” “City2” “City2” “City2” “City2” “City2” [1] “store1” “store2” “store1” “store2” “store1” … Read more
rep() is a built-in R function that replicates the values in the provided vector. The following shows examples of using rep() in R. Example 1 The following code is to repeat the number 4 twice. Output: [1] 4 4 Example 2 Output: [1] 1 2 3 1 2 3 1 2 3 1 2 3 Example … Read more
rep() is a built-in R function that replicates the values in the provided vector. This tutorial shows how to use rep() function in R with 4 examples. Example 1 The following code is to repeat the number 4 twice. Output: [1] 4 4 Example 2 Output: [1] 1 2 3 1 2 3 1 2 3 … Read more
Method 1 for paired t-test is for a situation group 1 and group 2 are two separate vectors, whereas Method 2 is for two groups of data in the same column. Method 1: t.test(group_1, group_2, paired = TRUE) Method 2: t.test(y~group, data=my_data, paired = TRUE) Data and Hypothesis Suppose we would like to test whether … Read more