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ç¹å®ã®æ¡ä»¶ã®ãã¨ã«ã¦ã³ãåæ°ãç®åºãããã¨ãã¯ä»¥ä¸ã®ããã«ããã iris %>% rowwise() %>% mutate(hoge = sum(across(Sepal.Length:Sepal.Width) >= 1))