observation.setTransformed(transformed);
}
// ValidObservation defaults to STD.
String mtypeStr = fields[6].trim();
MTypeType mtype = null;
if (!isNA(mtypeStr)) {
if ("DIF".equals(mtypeStr)) {
mtype = MTypeType.DIFF;
} else if ("STD".equals(mtypeStr)) {
mtype = MTypeType.STD;