{"id":514,"date":"2023-12-04T18:43:06","date_gmt":"2023-04-26T20:27:33","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/%e5%a6%82%e4%bd%95%e5%9c%a8r%e4%b8%ad%e4%bd%bf%e7%94%a8sum%e5%87%bd%e6%95%b0-%e6%b1%82%e5%92%8cr%e4%b8%ad%e7%9a%84%e5%85%83%e7%b4%a0\/"},"modified":"2025-08-02T15:03:19","modified_gmt":"2025-08-02T07:03:19","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8r%e4%b8%ad%e4%bd%bf%e7%94%a8sum%e5%87%bd%e6%95%b0-%e6%b1%82%e5%92%8cr%e4%b8%ad%e7%9a%84%e5%85%83%e7%b4%a0","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e4%bd%95%e5%9c%a8r%e4%b8%ad%e4%bd%bf%e7%94%a8sum%e5%87%bd%e6%95%b0-%e6%b1%82%e5%92%8cr%e4%b8%ad%e7%9a%84%e5%85%83%e7%b4%a0\/","title":{"rendered":"R\u8bed\u8a00\u6c42\u548c\u6280\u5de7\uff1asum()\u51fd\u6570\u5168\u9762\u89e3\u6790\u4e0e\u5b9e\u6218\u5e94\u7528"},"content":{"rendered":"

\u8ba9\u6211\u4eec\u5b66\u4e60\u5982\u4f55\u4f7f\u7528R\u4e2d\u7684sum()\u51fd\u6570\u627e\u5230\u503c\u7684\u603b\u548c\u3002\u5728\u8fd9\u4e2a\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u5c06\u5c1d\u8bd5\u627e\u5230\u5411\u91cf\u5143\u7d20\u7684\u603b\u548c\u3002<\/p>\n

sum()\u51fd\u6570\u7684\u8bed\u6cd5\u4e3a= sum(x,na.rm=FALSE\/TRUE)<\/p>\n

\u5411\u91cf\u662f\u5728R\u4e2d\u5b58\u50a8\u591a\u4e2a\u5143\u7d20\u7684\u6700\u7b80\u5355\u65b9\u6cd5\u3002\u8bf7\u770b\u4e0b\u9762\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5404\u79cd\u7c7b\u578b\u7684\u5411\u91cf\u3002<\/p>\n

Ex_vector:<\/span>  \r\nV<-<\/span> c(<\/span>2<\/span>,<\/span>4<\/span>,<\/span>6<\/span>,<\/span>8<\/span>,<\/span>10<\/span>)<\/span>  #This is a numerical vector  <\/span>\r\nV<-<\/span>c(<\/span>'red'<\/span>,<\/span> 'blue'<\/span>,<\/span> 'orange'<\/span>)<\/span>    #This is a character or string vector <\/span>\r\nV<-<\/span>c(<\/span>TRUE<\/span>,<\/span> FALSE<\/span>,<\/span>TRUE<\/span>)<\/span>   #This is a logical vector<\/span>\r\n<\/code><\/pre>\n
\n
R\u4e2dsum()\u51fd\u6570\u7684\u57fa\u672c\u7528\u6cd5\u5728\u8fd9\u4e2a\u90e8\u5206\u4e2d\uff0c\u6211\u4eec\u6b63\u5728\u6c42\u7ed9\u5b9a\u503c\u7684\u603b\u548c\u3002\u6267\u884c\u4ee5\u4e0b\u4ee3\u7801\u4ee5\u6c42\u5f97\u8fd9\u4e9b\u503c\u7684\u603b\u548c\u3002<\/p>\n
#list of values or a vector having numerical values<\/span>\r\ndf<-<\/span> c(<\/span>23<\/span>,<\/span>44<\/span>,<\/span>66<\/span>,<\/span>34<\/span>,<\/span>56<\/span>,<\/span>78<\/span>,<\/span>97<\/span>,<\/span>53<\/span>,<\/span>24<\/span>,<\/span>57<\/span>,<\/span>34<\/span>,<\/span>678<\/span>,<\/span>643<\/span>,<\/span>1344<\/span>)<\/span>\r\n\r\n#calculates the sum of the values <\/span>\r\nsum(<\/span>df)<\/span>\r\n<\/code><\/pre>\n
\u4ea7\u51fa \u2014> 3231<\/p>\n
\n
\u5728\u4f7f\u7528sum()\u51fd\u6570\u65f6\uff0c\u8df3\u8fc7”NA”\u503c\u3002
\n\u8fd9\u662f\u6587\u7ae0\u300a\u5982\u4f55\u5728R\u4e2d\u4f7f\u7528sum()\u51fd\u6570 – \u6c42\u548cR\u4e2d\u7684\u5143\u7d20\u300b\u7684\u7b2c2\u90e8\u5206\uff08\u51715\u90e8\u5206\uff09\u3002<\/p>\n
\u6709\u65f6\u5019\u4f60\u7684\u6570\u636e\u96c6\u53ef\u80fd\u5305\u542b”NA”\u503c\uff0c\u5373”\u4e0d\u53ef\u7528”\u3002\u56e0\u6b64\uff0c\u5982\u679c\u4f60\u5c06\u5305\u62ecNA\u5728\u5185\u7684\u6570\u503c\u76f8\u52a0\uff0csum()\u51fd\u6570\u4f1a\u8fd4\u56deNA\u800c\u4e0d\u662f\u6570\u503c\u6c42\u548c\u7684\u8f93\u51fa\u3002<\/p>\n
\u6211\u4eec\u6765\u5b66\u4e60\u5982\u4f55\u5904\u7406\u8fd9\u6837\u7684\u6570\u636e\u96c6\u3002<\/p>\n
\u5728\u8fd9\u4e00\u90e8\u5206\u4e2d\uff0c\u6211\u4eec\u6b63\u5728\u6c42\u53d6\u5177\u6709\u6570\u5b57\u503c\u548c\u503c’NA’\u7684\u5411\u91cf\u7684\u603b\u548c\u3002sum()\u51fd\u6570\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n
sum(x, na.rm = FALSE\/TRUE)<\/p>\n
    \n
  • x -> \u8fd9\u662f\u5305\u542b\u6570\u503c\u7684\u5411\u91cf\u3002<\/li>\n
  • na.rm -> \u8fd9\u8868\u793a\u662f\u5426\u79fb\u9664NA\u503c\u3002\u5982\u679c\u8bbe\u7f6e\u4e3aTRUE\uff0c\u5219\u5728\u8ba1\u7b97\u65f6\u4f1a\u8df3\u8fc7\u5411\u91cf\u4e2d\u7684NA\u503c\uff1b\u5426\u5219\uff0cNA\u5c06\u88ab\u5305\u542b\u5728\u8ba1\u7b97\u4e2d\u3002<\/li>\n<\/ul>\n
    \u4ee5\u4e0b\u4ee3\u7801\u5c06\u8bf4\u660e\u8be5\u64cd\u4f5c\uff1a<\/p>\n
    # \u521b\u5efa\u4e00\u4e2a\u5305\u542b\u6570\u503c\u7684\u5411\u91cf<\/span>\r\nx <-<\/span> c(<\/span>123<\/span>,<\/span> 54<\/span>,<\/span> 23<\/span>,<\/span> 876<\/span>,<\/span> NA<\/span>,<\/span> 134<\/span>,<\/span> 2346<\/span>,<\/span> NA<\/span>)<\/span>\r\n\r\n# \u8ba1\u7b97\u603b\u548c\u5e76\u4ece\u6c42\u548c\u4e2d\u79fb\u9664NA\u503c<\/span>\r\nsum(<\/span>x, na.rm =<\/span> TRUE<\/span>)<\/span>\r\n<\/code><\/pre>\n
    \u8f93\u51fa\uff1a3556<\/p>\n
    # \u5982\u679c\u8bbe\u7f6e\u4e3aFALSE\uff0csum\u51fd\u6570\u5c06\u8fd4\u56deNA\u503c<\/span>\r\nsum(<\/span>x, na.rm =<\/span> FALSE<\/span>)<\/span>\r\n--<\/span>--<\/span>-><\/span> NA<\/span>\r\n<\/code><\/pre>\n
    \n
    \u5728R\u4e2d\u4f7f\u7528sum()\u51fd\u6570\u5bf9\u7279\u5b9a\u5217\u7684\u503c\u8fdb\u884c\u6c42\u548c<\/h2>\n
    \u5728R\u4e2d\uff0c\u5bf9\u7279\u5b9a\u5217\u4e2d\u7684\u6570\u503c\u6c42\u548c\u975e\u5e38\u7b80\u5355\u3002\u4ee5\u4e0b\u4ee3\u7801\u5c06\u9610\u8ff0\u76f8\u540c\u7684\u529f\u80fd\u3002<\/p>\n
    \u8fd9\u4e2a\u6570\u636e\u96c6\u5305\u542b\u4e86’NA’\u503c\u3002\u6240\u4ee5\u6211\u4eec\u6b63\u5728\u4f7f\u7528na.rm=TRUE\u51fd\u6570\u6765\u5904\u7406\u5b83\uff0c\u5982\u4ee3\u7801\u6240\u793a\u3002<\/p>\n
    #\u8bfb\u53d6\u6570\u636e<\/span>\r\ndatasets::<\/span>airquality\r\n\r\n#\u6837\u672c\u6570\u636e\uff0c\u4ec5\u663e\u793a\u51e0\u884c<\/span>\r\n    Ozone Solar.R Wind Temp Month Day\r\n1<\/span>      41<\/span>     190<\/span>  7.4<\/span>   67<\/span>     5<\/span>   1<\/span>\r\n2<\/span>      36<\/span>     118<\/span>  8.0<\/span>   72<\/span>     5<\/span>   2<\/span>\r\n3<\/span>      12<\/span>     149<\/span> 12.6<\/span>   74<\/span>     5<\/span>   3<\/span>\r\n4<\/span>      18<\/span>     313<\/span> 11.5<\/span>   62<\/span>     5<\/span>   4<\/span>\r\n5<\/span>      NA<\/span>      NA<\/span> 14.3<\/span>   56<\/span>     5<\/span>   5<\/span>\r\n6<\/span>      28<\/span>      NA<\/span> 14.9<\/span>   66<\/span>     5<\/span>   6<\/span>\r\n7<\/span>      23<\/span>     299<\/span>  8.6<\/span>   65<\/span>     5<\/span>   7<\/span>\r\n8<\/span>      19<\/span>      99<\/span> 13.8<\/span>   59<\/span>     5<\/span>   8<\/span>\r\n9<\/span>       8<\/span>      19<\/span> 20.1<\/span>   61<\/span>     5<\/span>   9<\/span>\r\n10<\/span>     NA<\/span>     194<\/span>  8.6<\/span>   69<\/span>     5<\/span>  10<\/span>  \u7ee7\u7eed\u663e\u793a...<\/span>..\r\n\r\n#\u8ba1\u7b97'Ozone'\u5217\u4e2d\u6570\u503c\u7684\u603b\u548c\u3002<\/span>\r\nsum(<\/span>airquality$<\/span>Ozone,<\/span> na.rm =<\/span> TRUE<\/span>)<\/span>\r\n<\/code><\/pre>\n
    \u8f93\u51fa \u2014> 4887<\/p>\n
    \n
    \u5728R\u4e2d\uff0c\u72ec\u7acb\u5730\u5bf9\u6240\u6709\u884c\u4e2d\u7684\u6570\u636e\u6c42\u548c<\/h2>\n
    \u7b2c\u56db\u90e8\u5206\uff1a\u5bf9\u6570\u636e\u96c6\u7684\u6bcf\u4e00\u884c\u8fdb\u884c\u6c42\u548c<\/h2>\n
    \u8fd9\u4e00\u90e8\u5206\u7684\u91cd\u70b9\u662f\u5bf9\u6570\u636e\u96c6\u4e2d\u7684\u6bcf\u4e00\u884c\u8fdb\u884c\u6c42\u548c\u3002\u6267\u884c\u4e0b\u9762\u7684\u4ee3\u7801\u4ee5\u83b7\u5f97\u6bcf\u4e00\u884c\u7684\u6c42\u548c\u503c\u3002<\/p>\n
    \u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u901a\u8fc7\u8bbe\u7f6ena.rm=TRUE<\/code>\u53c2\u6570\u6765\u5220\u9664NA\u503c\uff0c\u786e\u4fdd\u8ba1\u7b97\u8fc7\u7a0b\u4e2d\u5ffd\u7565\u7f3a\u5931\u503c\u3002<\/p>\n
    datasets::<\/span>airquality\r\n\r\nrowSums(<\/span>airquality,<\/span> na.rm =<\/span> TRUE<\/span>)<\/span>\r\n<\/code><\/pre>\n
    \u8f93\u51fa\u7ed3\u679c\uff1a\u60a8\u53ef\u4ee5\u770b\u5230\u6bcf\u884c\u4e2d\u6240\u6709\u6570\u503c\u7684\u603b\u548c\u3002<\/p>\n
    [<\/span>1<\/span>]<\/span> 311.4<\/span> 241.0<\/span> 255.6<\/span> 413.5<\/span> 80.3<\/span> 119.9<\/span> 407.6<\/span> 203.8<\/span> 122.1<\/span> 286.6<\/span> 103.9<\/span> 367.7<\/span>\r\n[<\/span>13<\/span>]<\/span> 394.2<\/span> 385.9<\/span> 174.2<\/span> 444.5<\/span> 441.0<\/span> 182.4<\/span> 455.5<\/span> 151.7<\/span> 103.7<\/span> 447.6<\/span> 127.7<\/span> 226.0<\/span>\r\n[<\/span>25<\/span>]<\/span> 169.6<\/span> 369.9<\/span> 97.0<\/span> 148.0<\/span> 426.9<\/span> 457.7<\/span> 435.4<\/span> 379.6<\/span> 378.7<\/span> 334.1<\/span> 289.2<\/span> 324.6<\/span>\r\n[<\/span>37<\/span>]<\/span> 369.3<\/span> 260.7<\/span> 380.9<\/span> 480.8<\/span> 476.5<\/span> 379.9<\/span> 369.2<\/span> 280.0<\/span> 445.8<\/span> 433.5<\/span> 325.9<\/span> 436.7<\/span>\r\n[<\/span>49<\/span>]<\/span> 155.2<\/span> 241.5<\/span> 262.3<\/span> 260.3<\/span> 164.7<\/span> 200.6<\/span> 362.3<\/span> 249.0<\/span> 245.0<\/span> 163.3<\/span> 223.5<\/span> 157.9<\/span>\r\n[<\/span>61<\/span>]<\/span> 265.0<\/span> 500.1<\/span> 400.2<\/span> 368.2<\/span> 206.9<\/span> 338.6<\/span> 460.9<\/span> 460.1<\/span> 477.3<\/span> 482.7<\/span> 373.4<\/span> 247.6<\/span>\r\n[<\/span>73<\/span>]<\/span> 380.3<\/span> 317.9<\/span> 417.9<\/span> 171.3<\/span> 418.9<\/span> 425.3<\/span> 461.3<\/span> 384.1<\/span> 406.5<\/span> 131.9<\/span> 377.7<\/span> 418.5<\/span>\r\n[<\/span>85<\/span>]<\/span> 499.6<\/span> 456.0<\/span> 224.6<\/span> 266.0<\/span> 425.4<\/span> 454.4<\/span> 444.4<\/span> 441.2<\/span> 218.9<\/span> 137.8<\/span> 193.4<\/span> 182.9<\/span>\r\n[<\/span>97<\/span>]<\/span> 140.4<\/span> 171.6<\/span> 485.0<\/span> 434.3<\/span> 432.0<\/span> 340.6<\/span> 253.5<\/span> 353.5<\/span> 415.5<\/span> 333.7<\/span> 177.5<\/span> 204.3<\/span>\r\n[<\/span>109<\/span>]<\/span> 220.3<\/span> 247.4<\/span> 390.9<\/span> 350.3<\/span> 401.5<\/span> 161.3<\/span> 373.6<\/span> 377.7<\/span> 523.4<\/span> 416.0<\/span> 281.7<\/span> 421.7<\/span>\r\n[<\/span>121<\/span>]<\/span> 476.3<\/span> 461.3<\/span> 412.3<\/span> 370.9<\/span> 383.1<\/span> 363.8<\/span> 390.6<\/span> 250.4<\/span> 238.5<\/span> 378.9<\/span> 348.3<\/span> 354.9<\/span>\r\n[<\/span>133<\/span>]<\/span> 384.7<\/span> 395.9<\/span> 392.5<\/span> 371.3<\/span> 137.9<\/span> 231.5<\/span> 392.9<\/span> 348.8<\/span> 153.3<\/span> 368.3<\/span> 336.0<\/span> 357.6<\/span>\r\n[<\/span>145<\/span>]<\/span> 148.2<\/span> 298.3<\/span> 168.3<\/span> 147.6<\/span> 334.9<\/span> 271.2<\/span> 331.3<\/span> 271.0<\/span> 361.5<\/span>\r\n<\/code><\/pre>\n
    \n
    \u8ba1\u7b97\u6570\u636e\u96c6\u4e2d\u6240\u6709\u5217\u7684\u603b\u548c<\/h2>\n
    \u8ba9\u6211\u4eec\u8ba1\u7b97\u6570\u636e\u96c6\u4e2d\u6bcf\u5217\u7684\u603b\u548c\u3002\u6267\u884c\u4ee5\u4e0b\u4ee3\u7801\u4ee5\u83b7\u53d6\u6bcf\u5217\u7684\u603b\u548c\u3002<\/p>\n
    dataset::airquality\r\n\r\ncolSums(airquality, na.rm = TRUE)<\/code><\/pre>\n
    \u8f93\u51fa\uff1a<\/p>\n
    \u81ed\u6c27      \u592a\u9633\u8f90\u5c04       \u98ce\u901f        \u6e29\u5ea6        \u6708\u4efd       \u65e5\u671f\r\n4887.0      27146.0     1523.5      11916.0     1070.0       2418.0<\/code><\/pre>\n
    \n
    \u603b\u7ed3<\/h2>\n
    R\u4e2d\u7684sum()\u51fd\u6570\u7528\u4e8e\u8ba1\u7b97\u5411\u91cf\u4e2d\u503c\u7684\u603b\u548c\u3002\u672c\u6559\u7a0b\u5c55\u793a\u4e86\u5982\u4f55\u8ba1\u7b97\u503c\u7684\u603b\u548c\uff0c\u4ee5\u53ca\u5982\u4f55\u627e\u5230\u7279\u5b9a\u884c\u548c\u5217\u7684\u603b\u548c\uff0c\u8fd8\u4ecb\u7ecd\u4e86\u5982\u4f55\u5728\u6570\u636e\u96c6\u4e2d\u83b7\u53d6\u6bcf\u884c\u548c\u6bcf\u5217\u7684\u6c42\u548c\u503c\u3002<\/p>\n
    \u91cd\u8981\u7684\u662f\u8003\u8651\u662f\u5426\u8981\u5305\u542bNA\u503c\u3002\u5982\u679c\u8981\u6392\u9664NA\u503c\uff0c\u5e94\u8be5\u5c06na.rm\u53c2\u6570\u8bbe\u7f6e\u4e3aTRUE\uff0c\u5426\u5219\u5e94\u8be5\u8bbe\u7f6e\u4e3aFALSE\uff0c\u5982\u4e0a\u6240\u793a\u3002\u5e0c\u671b\u672c\u6559\u7a0b\u5bf9\u60a8\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
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