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Hello and welcome to Course Two in your end-of-course project.

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In this project, you'll be building a program in

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a few steps to perform what's called a sentiment analysis.

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Programs like these are widely used in a bunch of

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different companies and different situations.

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In this case, you'll be working with Twitter data,

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although it's fake Twitter data.

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You will eventually make a CSV file and use that to produce a graph of your results,

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which is a super useful way to visualize data and

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share results of programs you build with other people.

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Then you'd be able to build a program like this one to use real twitter data,

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which we can't use in this particular case.

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In order to build this analysis in your eventual CSV file,

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we're going to take you through a series of steps to build

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different functions in order for you to put together this complete program.

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As you proceed through the program,

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you should focus on individual steps one by one and make sure that you

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understand the instructions for each step before you move forward to writing the code.

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You should always focus on one step at a time because thinking about multiple steps in

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your program can often get overwhelming and can confuse

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you about what code needs to happen first and what should happen later.

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So make sure you focus on individual instructions for one step at a time.

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Build your plan and translate that into code as you work through the project.

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As you think about each step that you have to work through,

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you should think carefully about what you know about functions.

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What is the input for each function,

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what is its return value and what does each function have to

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do after the input and before it returns its final output.

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As you work on each function,

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you'll be able to put them together to build the full project.

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Remember also that in each step,

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you may need to copy some work you have done

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earlier into the next step to come up with a chart like this.

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You'll want to make sure that as you work on each concept,

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you isolate what you have to do without focusing on earlier pieces.

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Focus on the examples from the course that will be useful to you for the project,

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for example, function definition,

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advanced functions and dealing with files,

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since you're creating a file in order to visualize your data here.

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I also think that this project is a particularly exciting way to think about how

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you can apply these concepts to things you might want to do in real life, so to speak.

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Understanding different things about how programs can apply to you.

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So good luck and have fun.