Brandon La Porte <laporte.bran...@gmail.com> writes: > I have the following code to make a plot of 4 different supply curves > (economics). > > > from matplotlib import pyplot as plt > > price = range(0,51) > q1 = [x/2.0 for x in price] > q2 = [x/4.0 for x in price] > q3 = [x/5.0 for x in price] > q4 = [x/10.0 for x in price] > > markers_on = [20, 40] > > plt.plot(q1,price,'b',q2,price,'g',q3,price,'r', q4, price, 'y' ) > plt.title('Supply Curve') > plt.xlabel('Quantity Supplied (Thousands per month') > plt.ylabel('Price ($)') > #plt.legend(('Kd = %d'%kd, 'Kd = %d'%kd2, 'Kd = %d'% kd3, 'Step'), loc=4) > plt.legend(('p = 2Qs', 'p = 4Qs', 'p = 5Qs', 'p = 10Qs'), loc=4) > > plt.grid() > plt.show() > > I would like to place markers on the 4 curves when the price is equal to $20 > label it A, and when the price is equal to $40 and label it B. Does anyone > know how I can accomplish this.
Something like: plt.plot(20,40, 'bo') plt.annotate('B', (20,40), xytext=(-10,10), textcoords='offset points') Of course you should write a loop to calculate the x, y points, and use the proper colors. -- Piet van Oostrum <p...@vanoostrum.org> WWW: http://pietvanoostrum.com/ PGP key: [8DAE142BE17999C4] -- https://mail.python.org/mailman/listinfo/python-list