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Now let's create a color code according to the second integer $n$ (last column)

Now let's setup a color code according to the second integer $n$ (last column)

The first two elements represent the coordinates $(x,y)$, while the other two integers $k$, $n$, indicate other type of information.

The first two elements of the list represent the coordinates $(x,y)$, while the other two integers $k$, $n$, indicate other type of information.

Any suggestions?

In case anyone wants to play with the actual data file

The resulted plot should be something like this

Any suggestions?