"\tSpecify list of columns to delete. First and last are valid\n"
"\tSpecify list of columns to modify. First and last are valid\n"
  public Enumeration listOptions() {    Vector newVector = new Vector(3);    newVector.addElement(new Option(	     "\tSpecify the expression to apply. Eg. pow(A,6)/(MEAN+MAX)"	     +"\n\tSupported operators are +, -, *, /, pow, log,"	     +"\n\tabs, cos, exp, sqrt, tan, sin, ceil, floor, rint, (, ), "             +"\n\tMEAN, MAX, MIN, SD, COUNT, SUM, SUMSQUARED, ifelse",	     "E",1,"-E <expression>"));    newVector.addElement(new Option(              "\tSpecify list of columns to delete. First and last are valid\n"	      +"\tindexes. (default none)",              "R", 1, "-R <index1,index2-index4,...>"));        newVector.addElement(new Option(	      "\tInvert matching sense (i.e. only modify specified columns)",              "V", 0, "-V"));    return newVector.elements();  }