Creating a base line for my graph

Hey I need a have my graph start at 80 y-value and act normally, and the base value of 80 needs to be a flat dashed line across. I have called a function and I am just trying to plot it where it starts at the base value of 80. I have attached a screenshot of my matlab code. I have attached my the graph i get when I run my code and what my graph should look like. Basically the dotted line on the correct graph is the basal glucose level of a healthy adult and after a meal the blue line is the spike in glucose and then the decrease for a healthy adult and the red line is the spike in glucose for a diabetic adult, I just need the baseline to ba at 80 mg/L so that after any meal the spike will always be above go above 80.

Answer 1

[Cris LaPierre]

Look into using yline.

yline(yvalue,LineSpec)