If you have a nominal variable that has more than two levels, you need to create multiple dummy variables to take the place of the original nominal variable. For example, imagine that you wanted to predict depression from year in school: freshman, sophomore, junior, or senior.
Washington Post, Redskinsâ Kirk Cousins played a round of golf with President Trump, June 14, 2017. The Hill, Trump plays 18 holes of golf at Virginia club, June 25, 2017. Washington Post, Trump had a terrible July, but at least he played a lot of golf, July 31, 2017. Washington Post, Trump seen at his N.J. golf course, Aug. 7, 2017
Like many presidents, Barack Obama is an eager golfer, has played 137 rounds as president. VINEYARD HAVEN, Mass. - American presidents love golf â 15 of the last 18 have played â and Barack Obama is an eager member of that club. He's played golf on four of six days since arriving on the Massachusetts island of Martha's Vineyard last Saturday.