def addGraph(self, data, position=<NUM_LIT>, xlabel=None, ylabel=None):
ax = self._addBase(position, xlabel=xlabel, ylabel=ylabel)<EOL>ax.plot(data)<EOL>plt.draw()<EOL>
Adds a graph to the plot's figure.

        @param data See matplotlib.Axes.plot documentation.
        @param position A 3-digit number. The first two digits define a 2D grid
                where subplots may be added. The final digit specifies the nth grid
                location for the added subplot
        @param xlabel text to be displayed on the x-axis
        @param ylabel text to be displayed on the y-axis