if (nClasses > 2 && averageF1NumClassesExcluded() > 0) { int ex = averageF1NumClassesExcluded(); builder.append("\t(").append(ex).append(" class"); if (ex > 1)
if (nClasses > 2 && averageF1NumClassesExcluded() > 0) { int ex = averageF1NumClassesExcluded(); builder.append("\t(").append(ex).append(" class"); if (ex > 1)