Tableau 201: How to Make a What-If Analysis Using Parameters. 17. Tableau 201: How to Make a What-If Analysis Using Parameters. Parameters are one of the most powerful tools available in Tableau for exploring your data and providing interactivity to your end users. The best way to think of parameters is that they act as wildcards.
The United States has invested almost $78 billion in the International Space Station (ISS or Station) over the last 21 years, and going forward, NASA plans to spend between $3 and $4 billion annually to maintain and operate the Station, including transportation for crew and cargo.1 In a May 2014 report,
The International Space Station (ISS) is a habitable human-made satellite that orbits Earth at an altitude of between 330 km (205mi) and 435 km (270 mi). The ISS comprises pressurised modules for astronauts to live in, external trusses for propulsion, solar arrays for power and many other amazing components.