title: 2D array plotting in matplotlib
body: <p>I was trying to plot a 2D array vs a 1D array with pyplot. I can do that with no problems and columns in the 2D array are treated like two different sets of Y datas, which is what i want. What i don't know is how to specify a different color for every column in the 2d array. if i use <code>pyplot.plot(1darray, 2darray, "r-")</code> every column in 2d array is plotted red for example. Should i modify the standard color map or is there a smarter way?</p>