Eu sou muito novo em R (comecei a usá-lo hoje), e estou tentando plotar múltiplos histogramas uns sobre os outros. Eu encontrei alguns posts que falam sobre como plotar dois histogramas um em cima do outro, mas não encontrei nenhum que explique como fazer múltiplos. Especificamente para o meu exemplo, 5.

Eu tenho 5 valores que gostaria de plotar histogramas empilhados de.

a <- c(15.625,12.5,14,15.75,15.375,18.813)

cs <- c(15.875,    7.875,    6.625, 6,  6.5,    9,  7.375,  7.625,  6.875,  7.25,   7.5,    6.75,   6.75,   7.5,    6.75,   6.75,   10.25,  8.625,  8.875,  10.125, 11.75,  11, 16.5,   15.75,  14, 13, 12.5,   13.875, 13.5,   15.25,  17, 15.125, 15.75,  15.25,  13.625, 12.625, 11.375, 12.625, 11.875, 11.375, 16, 18.25,  20.25,  18.125, 22.5,   24.75,  27.5,   28.375, 31.125, 37.75,  32.75,  30.375, 31.875, 33.25,  34.625, 28.5,   28.875, 23.5,   24.625, 22.5,   18, 20.25,  24.875, 26.125, 30.25,  32.375, 36.5,   32.75,  35.25,  28.5,   29, 32.875, 34.5,   34.625, 31.875, 32.375, 29.5,   27.5,   26.875, 28.375, 30.25,  24.75,  26.75,  30.75,  29.625, 35.375, 31.875, 34.875, 40, 44.375, 32.25,  34.25,  35, 43.875, 46.125, 46.625, 29, 22.875, 24.25,  20.125, 25.125, 25.5,   25.875, 24.5,   24.25,  24.5,   24.125, 25, 23, 25, 30.25,  32, 37.5,   37.5,   32, 36.625, 40.625, 40.5,   47, 42.75)

e<- c(10.5,    13.188,  11.125, 10.938, 11.5,   17.625, 24, 18, 15, 17.625, 19.625, 30.5,   32.125)

qr <- c(17.625,    15,  14.875, 17.125, 17.375, 18, 14.75,  18, 17, 17.875, 15.25,  15.5,   23.375, 23.75,  23.125, 20.625, 22.625, 24, 24.125, 22.875, 20.125, 22.25,  25.5,   32.5,   36.375, 39.125, 39, 30.375, 33.375, 35.5,   29, 28.75,  23.875, 32.125, 29.5,   26.75,  36.125, 36.875, 36, 21.375, 21.5,   19.25,  20.25,  24.625, 23, 12.125, 11.625, 12.5,   12.625, 13.5,   12.25,  12.625, 11.5,   11.875, 11.5,   11.25,  11.75,  11.75,  11.5,   10.875, 15, 13.75,  13.25,  13, 16.125, 14, 16.5,   17, 16.75,  15.75,  14.875, 13.625, 12, 13.625, 13.25,  13, 15.25,  14, 13.5,   11.375, 10.375, 9.75,   10.125, 10.25,  13.125, 16.125, 18.875, 17.5,   17.75,  17, 19.625, 20.625, 19.25,  20.375, 20, 27.75,  27.5,   28.5,   28.625, 21.5,   21.5,   21, 20.125, 19.625, 20.125, 21, 25.375, 24.75,  27, 26, 27.125, 25.125, 26.125, 28.875, 30.75,  35, 36.25,  35.875, 34.25,  35.75,  35.375, 28.375, 25.625, 26.375, 26.875, 25.375, 24.75,  29.25,  25.875, 25.75,  24.75,  28.375, 30.875, 35, 35.5,   40.625, 47, 36.625, 38.5,   37.375, 45.875, 23.75,  25.375, 20.5,   23.25,  26.25,  29.5,   30.5,   33.875, 32.5,   28.375, 29.25,  26.5,   26.25,  28.375, 29.875, 36.625, 35, 20.875, 22.125, 23, 23.25,  26.25,  34.25)

w <- c(6.938,    8, 8.25,   7.5,    8,  6.25,   6,  5.25,   4.5,    4.75,   6,  5.875,  6.25,   5,  3.5,    3.25,   4,  3.375,  3.5,    2.75,   3.75,   3.75,   4.75,   4.25,   5,  6,  6,  5.75,   5.625,  5.375,  5,  4.5,    4.375,  3.75,   4.25,   4.375,  4.25,   4.75,   4.625,  4.375,  4.25,   4,  3.75,   3.625,  3.75,   4.5,    6.125,  7,  8.25,   8,  10.375, 10.75,  14.25,  14, 15.5,   27.5,   26.5,   21.75,  25.375, 20.625, 21.75,  17.125, 17.625, 13.75,  14.375, 15.625, 20.75,  20.5,   25.25,  24.375, 20.5,   18.5,   27.25,  33.5,   33, 42.625, 50.125, 47.25,  25.75,  21.25,  21.25,  20.5,   17.625, 16, 15.25,  13.375, 13, 17, 14.125, 16.125, 14.25,  12.25,  14.5,   17.375, 16.125, 15.625, 17.5,   23, 27.625, 28.625, 25.5,   19.75,  19.75,  24.75,  23.625, 24.625, 33.375, 36.25,  36.625, 37.125, 37.625, 37.375, 37.875)

Eu cansei imitando o código que encontrei nestefio, mas voltou um erro de matriz. Qualquer ajuda é apreciada.