I have a csv.file that shows the amount of meat eaten in different countries in kg per person given at quarterly time.
country. time. kg meat
1 USA. 1980-Q1. 30
2 USA. 1980-Q2. 32
......
32 France. 1980-Q1. 29
33 France. 1980-Q2. 27
....
and so on.
So what I want to do is plot a graph with y-axis showing the country and x-axis showing the time in quarters as described in the data set. But I only want to do this for 2 countries. Not for all. And in addition to that I would like to have the added values which mean USA starts with 30kg second plotting dot would be 30+32 and so on.
I really dont know how to do this. Can someone help me?