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Data Analysis Fundamentals: Introduction

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Introduction

02.36

00:00 - Today we're going to be doing a worked example following the 6 step process we laid out in the course.
00:05 Now what's going to be a bit different about this worked example compared to some of the other ones that we've already done is that this time we're going to be using a cellphone based logger.
00:13 Now what do I mean by that? All I mean is that we're going to be using a simple cellphone app in order to record all of the data coming off the car.
00:21 Now that's different to some of the other worked examples that we've already done which is using standalone dedicated dataloggers fitted to the car.
00:29 Now one of the big advantages of this is that obviously most of us already carry around a cellphone in our pocket so it means straight away, a whole lot less hardware we need to buy.
00:38 There's a lot of sensors already built into a cellphone, things like GPS, we've got accelerometers obviously a camera as well.
00:45 Now already you can see, straight away we've got most of the ingredients we need to go ahead and log data on the car.
00:52 Not only that, because it's also got a screen of its own, it means we can also visualise stuff when we're driving the car, whether it's engine parameters on track, whether it's that time variance or time delta channel, we've straight away got all of this stuff packed into the cellphone.
01:06 So while there are some disadvantages to using a cellphone, as we'll see today, you can get a lot of information just from the basic hardware you carry around in your pocket already.
01:15 The car we're using for the worked example today is a series 6 RX7 that's a little bit upgraded over factory.
01:21 It's got a little bit more power, it's got larger brakes fitted to the front axle, it's got some sort of entry level coilovers fitted to it as well as some upgraded wheels and tyres.
01:29 So it is a little bit upgraded over factory but it's really not too far away from being something that's still recognisable as a road car.
01:36 So we've got a couple of different data sets we're going to look at today.
01:39 It's just from a recent track day we did where we took the RX7 to the track.
01:42 Now we've got an amateur driver to drive it and we've also got one of the local pros to drive it so we've got some good data we can use as a comparison which is exactly what we recommend to use in the course to help you speed up your driving analysis even faster.
01:56 The app we're going to be using today is called Track Addict by HP Tuners.
02:00 Now there are lots of different apps out there on the market that will do a really similar thing.
02:04 A lot of them have really similar features, there's not necessarily a huge difference between each of them but one of the reasons I chose this one is because it does actually have the ability to export data so you can visualise it in an external program which is something we'll go through in a little bit more detail later in the worked example.