LIS4370 R Programming - Module 8 Assignment

For this week's assignment in R Programming, we are to do the following:

Step 1: Import txt file in R. This file is called Assignment 6 Dataset.txt

Step 2: Use ddply from the plyr package to generate mean of Age and Grade variables split by Sex variable, this will be saved to new variable, Grade.Average

Step 3: Create a new txt file containing new variable Grade.Average. This new txt file will be called Sorted.Average

Step 4: Separate values in Sorted.Average by comma using sep argument, and save it back to Sorted.Average

Step 5: Using the original txt file, filter the names in the list that contain the letter (i). Then, save the result to a new file called DataSubset with the values separated by comma.

Let's take a look at our new files:

Sorted.Average:

DataSubset:

As you can see by the resulting output, the values are separated by commas and the variables are differentiated as they are surrounded by double quotes. 

See the code on GitHub: Module 8 Code

~ Katie