按元素名稱組合/合併多個數據幀

Question

我有由lapply生成的具有不同元素名稱的數據框。

head(df1) 

$Sample1 

    G1   G2  Group 
1 1.016673 -1.04402692 1 
2 1.019958 -0.86763046 1 
3 1.033050 -1.09717438 1 
4 1.036969 0.26971351 1 
5 1.044059 1.73402959 1 

$Sample2 

    G1   G2  Group 
1 1.413218 0.22466456 1 
2 1.413339 -0.91755436 1 
3 1.415782 -0.23471118 1 
4 1.434750 -0.77498973 1 
5 1.436905 0.76642626 1 

另一套是在格式相似，

集團

head(df2) 

$Sample1 

    G1   G2  Group 
1 1.053269 -1.04460950 2 
2 1.059461 -0.86711232 2 
3 1.072446 -1.09748431 2 
4 1.078763 0.26785751 2 
5 1.038325 1.73818175 2 

$Sample2 

    G1   G2  Group 
1 1.438067 0.22933986 2 
2 1.856085 -0.91988726 2 
3 1.415782 -0.23405677 2 
4 1.434750 -0.77406530 2 
5 1.436905 0.76078091 2 

我的目標是結合/他們的元素名稱合併在一起，例如Sample1和Sample2下由2指定。

$Sample1 

    G1   G2  Group 
1 1.016673 -1.04402692 1 
2 1.019958 -0.86763046 1 
3 1.033050 -1.09717438 1 
4 1.036969 0.26971351 1 
5 1.044059 1.73402959 1 
1 1.053269 -1.04460950 2 
2 1.059461 -0.86711232 2 
3 1.072446 -1.09748431 2 
4 1.078763 0.26785751 2 
5 1.038325 1.73818175 2 

$Sample2 

    G1   G2  Group 
1 1.413218 0.22466456 1 
2 1.413339 -0.91755436 1 
3 1.415782 -0.23471118 1 
4 1.434750 -0.77498973 1 
5 1.436905 0.76642626 1 
1 1.438067 0.22933986 2 
2 1.856085 -0.91988726 2 
3 1.415782 -0.23405677 2 
4 1.434750 -0.77406530 2 
5 1.436905 0.76078091 2 

我想不出如何做到這一點。有人能幫助我嗎？謝謝！

Answer 1

也許嘗試mapply和rbind：

a1 <- list(mtcars[1:5,],mtcars[6:10,]) 
a2 <- list(mtcars[11:15,],mtcars[16:20,]) 
> mapply(FUN = rbind,a1,a2,SIMPLIFY = FALSE) 
[[1]] 
        mpg cyl disp hp drat wt qsec vs am gear carb 
Mazda RX4   21.0 6 160.0 110 3.90 2.620 16.46 0 1 4 4 
Mazda RX4 Wag  21.0 6 160.0 110 3.90 2.875 17.02 0 1 4 4 
Datsun 710   22.8 4 108.0 93 3.85 2.320 18.61 1 1 4 1 
Hornet 4 Drive  21.4 6 258.0 110 3.08 3.215 19.44 1 0 3 1 
Hornet Sportabout 18.7 8 360.0 175 3.15 3.440 17.02 0 0 3 2 
Merc 280C   17.8 6 167.6 123 3.92 3.440 18.90 1 0 4 4 
Merc 450SE   16.4 8 275.8 180 3.07 4.070 17.40 0 0 3 3 
Merc 450SL   17.3 8 275.8 180 3.07 3.730 17.60 0 0 3 3 
Merc 450SLC  15.2 8 275.8 180 3.07 3.780 18.00 0 0 3 3 
Cadillac Fleetwood 10.4 8 472.0 205 2.93 5.250 17.98 0 0 3 4 

[[2]] 
        mpg cyl disp hp drat wt qsec vs am gear carb 
Valiant    18.1 6 225.0 105 2.76 3.460 20.22 1 0 3 1 
Duster 360   14.3 8 360.0 245 3.21 3.570 15.84 0 0 3 4 
Merc 240D   24.4 4 146.7 62 3.69 3.190 20.00 1 0 4 2 
Merc 230   22.8 4 140.8 95 3.92 3.150 22.90 1 0 4 2 
Merc 280   19.2 6 167.6 123 3.92 3.440 18.30 1 0 4 4 
Lincoln Continental 10.4 8 460.0 215 3.00 5.424 17.82 0 0 3 4 
Chrysler Imperial 14.7 8 440.0 230 3.23 5.345 17.42 0 0 3 4 
Fiat 128   32.4 4 78.7 66 4.08 2.200 19.47 1 1 4 1 
Honda Civic   30.4 4 75.7 52 4.93 1.615 18.52 1 1 4 2 
Toyota Corolla  33.9 4 71.1 65 4.22 1.835 19.90 1 1 4 1 

相同（我認爲）在purrr將map2(a1,a2,rbind)。