The goal of this visualization is to show that we can highlight one specific line in a visualization using a parameter.

In the below example, I used a Monte Carlo Simulation showing 1,000 simulations for a brokerage portfolio. Parameter in this situation is helping to highlight a specific simulation with a specific color. I used a parameter as filter, typed the simulation number and the parameter is used in a calculation to put "True" or "False" as a new attribute. I was then able to use this attribute in the color grammar panel of the visualization.