我一直在尝试使用 R 和“prcomp”进行 PCA 分析。我的数据(plan0)是一个有很多 NA 的数据框,所以我这样做了
plan0_sna <- na.omit(plan0)
结果数据在这里 当我尝试做
m2 <- princomp(plan0_sna, cor=TRUE)
Error in cov.wt(z) : 'x' must contain finite values only
所以,我需要转换为矩阵
matrix0 <- data.matrix (plan0_sna)
但在结果数据中没有州名
head(matrix0)
LOCAL PM2.5 BC Al Si
2 1 21 5.9 0.02278234 0.2993741
3 1 22 7.6 0.06149135 0.1828806
12 1 28 18.4 0.01614913 0.1905879
17 1 31 18.5 0.04290772 0.1603130
18 1 26 8.5 0.03344481 0.4836519
19 1 35 14.1 0.11562827 0.3842194
我想在不丢失州名的情况下进行分析,就像 USArrest 数据一样:
> USArrests
Murder Assault UrbanPop Rape
Alabama 13.2 236 58 21.2
Alaska 10.0 263 48 44.5
Arizona 8.1 294 80 31.0
Arkansas 8.8 190 50 19.5
California 9.0 276 91 40.6
Colorado 7.9 204 78 38.7
Connecticut 3.3 110 77 11.1
Delaware 5.9 238 72 15.8
Florida 15.4 335 80 31.9
Georgia 17.4 211 60 25.8
Hawaii 5.3 46 83 20.2
Idaho 2.6 120 54 14.2
Illinois 10.4 249 83 24.0
Indiana 7.2 113 65 21.0
Iowa 2.2 56 57 11.3
Kansas 6.0 115 66 18.0
Kentucky 9.7 109 52 16.3
Louisiana 15.4 249 66 22.2
Maine 2.1 83 51 7.8
Maryland 11.3 300 67 27.8
Massachusetts 4.4 149 85 16.3
Michigan 12.1 255 74 35.1
Minnesota 2.7 72 66 14.9
Mississippi 16.1 259 44 17.1
Missouri 9.0 178 70 28.2
Montana 6.0 109 53 16.4
Nebraska 4.3 102 62 16.5
Nevada 12.2 252 81 46.0
New Hampshire 2.1 57 56 9.5
New Jersey 7.4 159 89 18.8
New Mexico 11.4 285 70 32.1
New York 11.1 254 86 26.1
North Carolina 13.0 337 45 16.1
North Dakota 0.8 45 44 7.3
Ohio 7.3 120 75 21.4
Oklahoma 6.6 151 68 20.0
Oregon 4.9 159 67 29.3
Pennsylvania 6.3 106 72 14.9
Rhode Island 3.4 174 87 8.3
South Carolina 14.4 279 48 22.5
South Dakota 3.8 86 45 12.8
Tennessee 13.2 188 59 26.9
Texas 12.7 201 80 25.5
Utah 3.2 120 80 22.9
Vermont 2.2 48 32 11.2
Virginia 8.5 156 63 20.7
Washington 4.0 145 73 26.2
West Virginia 5.7 81 39 9.3
Wisconsin 2.6 53 66 10.8
Wyoming 6.8 161 60 15.6
为什么不一样?