fix missing values when deriving column range
fix missing values when deriving column range

Caleydo/lineupjs,wgmueller1/boxing_rankings,wgmueller1/boxing_rankings,Caleydo/lineup.js,Caleydo/lineupjs,stopyoukid/lineup.js,Caleydo/lineup.js,Caleydo/lineup.js,stopyoukid/lineup.js