[問題] which(with)的使用方式

看板R_Language作者zmack0905 (降太)時間11年前 (2013/04/09 18:46)推噓2(2推 0噓 11→)

留言13則, 3人參與討論串1/1

我想利用監測資料劃出箱鬚圖,資料母體為全年度所有測站的數據遇挑選其中一站做其全年度的特定物種(O3)的盒鬚圖利用程式碼 ids <- which(with(newdata04,station == "忠明")) plot(as.factor(format(newdata04$measuretime[ids],"%m")), newdata04$O3) 得錯誤訊息錯誤在model.frame.default(formula = y ~ x) : variable lengths differ (found for 'x') 其為參照OPENAIR'MANULA的寫法,但是最後顯示變數不定是因為測站數與觀測時數不同嗎? 如果我想要從所有站中特別挑出某個站,對時間與測時作圖該如何給條件? ------------atrr(newdata04)部分結果------------- head(attributes(newdata04),10) $names [1] "number" "station" "measuretime" "SO2" "CO" "O3" "PM10" "NOx" "NO" "NO2" [11] "THC" "NMHC" "WIND_SPEED" "WIND_DIREC" "SIGMA" "WD_GLOBAL" "AMP_TEMP" "DEW_POINT" "SHELT_TEMP" "PRESSURE" [21] "PH_RAIN" "RAIN_COND" "RAINFALL" "CH4" "RAIN_INT" "area" $row.names [1] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 [25] 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 [49] 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 [73] 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 [97] 97 98 99 100 101 102 103 104 .. . . 99745 99746 99747 99748 99749 99750 99751 99752 99753 99754 99755 99756 99757 99758 99759 99760 99761 99762 99763 99764 99765 99766 99767 99768 [99769] 99769 99770 99771 99772 99773 99774 99775 99776 99777 99778 99779 99780 99781 99782 99783 99784 99785 99786 99787 99788 99789 99790 99791 99792 [99793] 99793 99794 99795 99796 99797 99798 99799 99800 99801 99802 99803 99804 99805 99806 99807 99808 99809 99810 99811 99812 99813 99814 99815 99816 [99817] 99817 99818 99819 99820 99821 99822 99823 99824 99825 99826 99827 99828 99829 99830 99831 99832 99833 99834 99835 99836 99837 99838 99839 99840 [99841] 99841 99842 99843 99844 99845 99846 99847 99848 99849 99850 99851 99852 99853 99854 99855 99856 99857 99858 99859 99860 99861 99862 99863 99864 [99865] 99865 99866 99867 99868 99869 99870 99871 99872 99873 99874 99875 99876 99877 99878 99879 99880 99881 99882 99883 99884 99885 99886 99887 99888 [99889] 99889 99890 99891 99892 99893 99894 99895 99896 99897 99898 99899 99900 99901 99902 99903 99904 99905 99906 99907 99908 99909 99910 99911 99912 [99913] 99913 99914 99915 99916 99917 99918 99919 99920 99921 99922 99923 99924 99925 99926 99927 99928 99929 99930 99931 99932 99933 99934 99935 99936 [99937] 99937 99938 99939 99940 99941 99942 99943 99944 99945 99946 99947 99948 99949 99950 99951 99952 99953 99954 99955 99956 99957 99958 99959 99960 [99961] 99961 99962 99963 99964 99965 99966 99967 99968 99969 99970 99971 99972 99973 99974 99975 99976 99977 99978 99979 99980 99981 99982 99983 99984 [99985] 99985 99986 99987 99988 99989 99990 99991 99992 99993 99994 99995 99996 99997 99998 99999 [ reached getOption("max.print") -- omitted 532449 entries ] $class [1] "data.frame" [軟體熟悉度]: 入門(寫過其他程式，只是對語法不熟悉) -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.120.29.185 ※ 編輯: zmack0905 來自: 140.120.29.185 (04/09 18:47)