outputFilename := flags.String("o", "-", "output `file`")
components := flags.Int("components", 4, "number of components")
onehot := flags.Bool("one-hot", false, "recode tile variants as one-hot")
outputFilename := flags.String("o", "-", "output `file`")
components := flags.Int("components", 4, "number of components")
onehot := flags.Bool("one-hot", false, "recode tile variants as one-hot")