How to make a basic GGPLOT2 time series graph : I need to graph 

sat	-0.038685744			
sun	-0.004397419			
mon	-0.072163337			
tue	0.123328564			
wed	0.021875962			
thu	0.005030862			
fri	0.002869955	

but the steps on r-graph-gallery are confusing, so can someone help me out with a simple graph that shows days of the week on the x axis in ggplot2