How to choose specific countries and plot graph?

Here is my dataset

I want to plot multiple countries Confirmed Cases. So how to choose countries and plot a bar graph?

Answer 1

[Cris LaPierre]

You'll have to get the data into MATLAB first. I suggest using the import tool. This video may be helpful for that.

Once you have the data loaded in a table, this video might help you see how to plot it.

[Saurav Karmakar]

Without using any tool, can you help me with the code?

[Cris LaPierre]

Use the tool to generate the code you need. This video on generating and reusing code created by the import tool shows you how.

[Saurav Karmakar]

It worked but I want Countries to be x-axis and cases to be y-axis use them to plot Bar-Plot but it's not showing. I want to get cummlative Confirmed Cases for China and plot it as a Bar and same thing for rest countries also. How can I do that?

[Cris LaPierre]

Click the circular arrow icon between your two variables to swap X and Y data.

If you want to create counts by category (country here), you'll need to use the groupsummary function. This video might help you with learning how to use it.

Just an observation. You might consider enrolling in our Exploratory Data Analysis with MATLAB course on Coursera. That is where all these videos are coming from. It is free to enroll if you don't mind skipping the graded content.

[Saurav Karmakar]

I wrote this code instead.

And when I sort it by Desciding Confirmed Cases it doesn't work

I have knowledge of EDA but in Python that's I'm having problem in MATLAB

[Cris LaPierre]

Use the documentation to make sure you get the syntax for sortrows correct for a table.

[Saurav Karmakar]

Thanks, I got my solution. I then sliced the data using this code

top10 = country_clean_sorted(1:10,:);

And now the plot is

[Cris LaPierre]

Now I suggest looking into the function removecats. It will allow you to remove the categories with zero counts. That can help make the bar plot easier to interpret.

[Saurav Karmakar]

What to do?

[Cris LaPierre]

top10.Country = removecats(top10.Country);

[Saurav Karmakar]

Thanks a lot Cris! I learned a lot today.