# Activity

To participate in this activity, you'll need to have MATLAB open on your computer. To do this, please follow the instructions under [Accessing MATLAB](/matlab/getting-started/access.md) --- to save installing anything, I recommend you [use MATLAB Online](/matlab/getting-started/access/online.md).

### Download a copy of the data and save it on your computer

{% file src="/files/72AKAVyt35INhL1pt6xZ" %}

### Upload the data file to MATLAB

To do this, click the "Upload" button under the HOME tab, then navigate to and select the `data.csv` file.

### Import the data into the MATLAB Workspace

In the Command Window, enter the following (hint: use copy and paste) after the `>>` prompt: 

`mystery = importdata('data.csv')`

Then click Enter (or Return) on your keyboard.

{% hint style="info" %}
This will save the `data.csv` file under the variable name `mystery`.
{% endhint %}

### Show the image hidden within the CSV file

In the Command Window, enter the following command after the `>>` prompt: 

`imshow(mystery)`

Then click Enter (or Return) on your keyboard.

{% hint style="info" %}
`imshow()` is a function in MATLAB which will show an image. This function takes one argument (piece of information): the image, which in this case is `mystery`.

For more information on `imshow()`, please visit: <https://au.mathworks.com/help/images/ref/imshow.html>
{% endhint %}

### What do you see?


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