public LogFormat(double base,String baseLabel,String powerLabel,boolean showBase){
  ParamChecks.nullNotPermitted(baseLabel,"baseLabel");
  ParamChecks.nullNotPermitted(powerLabel,"powerLabel");
  this.base=base;
  this.baseLog=Math.log(this.base);
  this.baseLabel=baseLabel;
  this.showBase=showBase;
  this.powerLabel=powerLabel;
}

public LogFormat ( double base , String baseLabel , String powerLabel , boolean showBase ) { ParamChecks . nullNotPermitted ( baseLabel , "baseLabel" ) ; ParamChecks . nullNotPermitted ( powerLabel , "powerLabel" ) ; this . base = base ; this . baseLog = Math . log ( this . base ) ; this . baseLabel = baseLabel ; this . showBase = showBase ; this . powerLabel = powerLabel ; }
creates a new instance .
