创建子矩阵具有给定多个条件我有R中的下面的矩阵(实际上是一个数据帧):如何作为R
> str(x2)
'data.frame': 274569 obs. of 15 variables:
$ ykod : int 99 99 99 99 99 99 99 99 99 99 ...
$ yad : Factor w/ 43 levels "BAKUGAN","BARBIE",..: 2 2 2 2 2 2 2 2 2 2 ...
$ per : Factor w/ 3 levels "2 AYLIK","3 AYLIK",..: 3 3 3 3 3 3 3 3 3 3 ...
$ donem: int 201106 201106 201106 201106 201106 201106 201106 201106 201106 201106 ...
$ sayi : int 201106 201106 201106 201106 201106 201106 201106 201106 201106 201106 ...
$ mkod : int 359 361 362 363 366 847 849 850 1505 1506 ...
$ mad : Factor w/ 11045 levels " Hilal Gida ",..: 5163 3833 10840 8284 10839 2633 10758 10293 6986 6984 ...
$ mtip : Factor w/ 30 levels "Abone Bürosu ",..: 20 20 20 20 20 2 2 2 11 11 ...
$ kanal: Factor w/ 2 levels "OB","SS": 2 2 2 2 2 2 2 2 1 1 ...
$ bkod : int 110006 110006 110006 110006 110006 110006 110006 110006 110006 110006 ...
$ bad : Factor w/ 213 levels "4. Levent","500 Evler",..: 25 25 25 25 25 25 25 25 25 25 ...
$ bolge: Factor w/ 12 levels "Adana Şehiriçi",..: 7 7 7 7 7 7 7 7 7 7 ...
$ sevk : int 5 2 2 2 10 0 4 3 13 32 ...
$ iade : int 0 2 1 2 4 0 3 2 0 8 ...
$ satis: int 5 0 1 0 6 0 1 1 13 24 ...
我想从该主数据帧创建子集。例如,我需要满足多个条件的子矩阵,如 ykod = 123
和donem = 201109
和sevk > 20
和satis > 10
。
我该如何做到这一点?
尝试使用'subset'。在你的情况下,它会是子集(x2,ykod == 123&donem == 201109&sevk> 20&satis> 10)' – Ramnath
相关:http://stackoverflow.com/q/4935479/210673 – Aaron