This is an app that help a user plot a 2- dimensional dataset that has the comma (,) as it's dilimeter.
The user interface has three buttons
A click on the first button should take you to your directory where you browse for the dataset file you want to plot
The next button - read csv reads the data from the file into the app. You'll know your data choice is correct if you get no error message.
A click on the third button first calculates the correlation between your dataset values. It then makes a scatter plot of them.