MATLAB How to Use Column Values for Plotting in Matlab?

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To plot values from specific columns in a dataset based on the values in another column, it's essential to ensure that the columns being plotted have the same size. In MATLAB, you can use the command "plot(col(:,1), col(:,6))" to create a plot where the first column serves as the x-axis and the sixth column as the y-axis. This command establishes a one-to-one relationship between the values in the specified columns, plotting each point accordingly. Understanding how indexing works in matrices is crucial for effectively selecting and visualizing data from different columns based on criteria from another column.
joanne34567
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So I have a dataset...
I am trying to use let's say values in column 1 to determine which values I need to plot from columns 5 and 6...
Reading about indexing in a matrix doesn't really help as it doesn't hint at how you might use values in one column to select values from another set of columns and I'm a bit stuck.
Any ideas?
 
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Plot column 1 with column 6:

plot(col(:,1),col(:,6))

Keep in mind that the two columns must have the same size.

Matlab plots columns in a 1-1 relation, so it will plot the abscissa col(1,1) with the ordinate col(1,6), then the point (col(2,1),col(2,6)), etc.
 

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