WEBVTT 1 00:00:00.220 --> 00:00:02.230 Hi guys, and welcome back. 2 00:00:02.230 --> 00:00:04.390 In this section we're going to learn about 3 00:00:04.390 --> 00:00:07.880 creating graphs using MatPlotLib. 4 00:00:07.880 --> 00:00:09.550 I just want to give you a quick overview 5 00:00:09.550 --> 00:00:11.650 of the sort of things that we gonna be creating, 6 00:00:11.650 --> 00:00:14.250 so you get a taster of what we'll be learning. 7 00:00:14.250 --> 00:00:17.590 Do note though, that MatPlotLib is a little bit complicated, 8 00:00:17.590 --> 00:00:20.200 so we're going to be learning a lot of the fundamentals 9 00:00:20.200 --> 00:00:22.270 of MatPlotLib as we go through this section, 10 00:00:22.270 --> 00:00:24.790 as well as creating all of these charts. 11 00:00:24.790 --> 00:00:26.480 So we're gonna start with line charts. 12 00:00:26.480 --> 00:00:28.640 This looks pretty simple, we've got here 13 00:00:28.640 --> 00:00:31.610 a figure, a pair of axes, data points plotted, 14 00:00:31.610 --> 00:00:34.240 but this is actually four lines of code. 15 00:00:34.240 --> 00:00:37.360 So we're going to learn all about what those four lines do 16 00:00:37.360 --> 00:00:40.180 and how we can get these graphs up on the screen. 17 00:00:40.180 --> 00:00:42.880 We'll also learn how to produce multiple plots 18 00:00:42.880 --> 00:00:45.320 in one figure, so that we can export 19 00:00:45.320 --> 00:00:47.610 images that have multiple graphs in them, 20 00:00:47.610 --> 00:00:50.600 or that we can potentially have different types of graph 21 00:00:50.600 --> 00:00:52.150 in the same image. 22 00:00:52.150 --> 00:00:53.770 We'll also learn about pie charts 23 00:00:53.770 --> 00:00:57.530 and we'll create a set of pie charts for our polling data. 24 00:00:57.530 --> 00:00:59.980 Here you can see the Flask vs. Django poll 25 00:00:59.980 --> 00:01:01.810 that we created earlier on in the course, 26 00:01:01.810 --> 00:01:06.210 we're going to create a graph for the options in that poll. 27 00:01:06.210 --> 00:01:08.020 You can see that we've got labels in there, 28 00:01:08.020 --> 00:01:10.960 we've got the percentages for each segment of the pie chart, 29 00:01:10.960 --> 00:01:13.810 we're gonna learn how to separate different segments 30 00:01:13.810 --> 00:01:16.000 from the centre, this is called Explosion, 31 00:01:16.000 --> 00:01:17.660 as well as a bunch more stuff. 32 00:01:17.660 --> 00:01:19.210 We'll learn about bar charts as well, 33 00:01:19.210 --> 00:01:21.730 since they are one of the most popular types of chart. 34 00:01:21.730 --> 00:01:25.130 We'll learn how to create simple charts like this one here, 35 00:01:25.130 --> 00:01:28.210 where they have titles, labels in the axes, 36 00:01:28.210 --> 00:01:30.140 they've got rotated labels at the bottom 37 00:01:30.140 --> 00:01:32.220 so that they fit a bit more easily. 38 00:01:32.220 --> 00:01:35.580 And we'll also learn how to create stacked bar charts here, 39 00:01:35.580 --> 00:01:37.750 which may look similar, but there's a lot more 40 00:01:37.750 --> 00:01:39.250 going on behind the scenes. 41 00:01:39.250 --> 00:01:42.200 It's also got a legend at the top right corner, 42 00:01:42.200 --> 00:01:44.100 which can be pretty handy as well. 43 00:01:44.100 --> 00:01:46.140 This is by no means everything that we'll be learning 44 00:01:46.140 --> 00:01:47.510 in this section, though. 45 00:01:47.510 --> 00:01:49.580 We're going to learn how to configure charts, 46 00:01:49.580 --> 00:01:52.690 how to change colours, how to change settings, sizes, 47 00:01:52.690 --> 00:01:56.070 adjust how they fit within the window and much more. 48 00:01:56.070 --> 00:01:59.650 We'll learn how to export images, including PNG images 49 00:01:59.650 --> 00:02:02.630 that you can then put into websites or into PDFs. 50 00:02:02.630 --> 00:02:04.800 We'll learn how to create complex figures 51 00:02:04.800 --> 00:02:06.270 with multiple charts in them, 52 00:02:06.270 --> 00:02:08.670 how to plot multiple datasets into one chart 53 00:02:08.670 --> 00:02:09.950 if that's what you want to do. 54 00:02:09.950 --> 00:02:12.110 And overall and the most important thing, 55 00:02:12.110 --> 00:02:15.970 is we'll gain a fundamental understanding of MatPlotLib, 56 00:02:15.970 --> 00:02:19.250 which is not so easy to get, so learning more later on 57 00:02:19.250 --> 00:02:20.510 will be much easier. 58 00:02:20.510 --> 00:02:22.490 So thank you guys for joining me in this section, 59 00:02:22.490 --> 00:02:23.860 I hope that you will enjoy it. 60 00:02:23.860 --> 00:02:25.420 Let me know if you have any questions about it 61 00:02:25.420 --> 00:02:27.920 and I'll see you in the next video to get started.