Confidence ellipse graphs for decision making

Attached here are the python codes used to plot three confidence ellipse graphs: (1) plotFile_nasa is used to plot the graph of intention of use vs NASA-TLX overall scores; (2) plotFile_reba is used to plot the graph of intention of use vs reba scores; and (3) plotFile_valence is used to plot the graph of intention of use vs valence scores. The 'scatterplot.xlsx' consists of all the results for the parameters and it is read by python coding for plotting the datapoints.