小编Mak*_*iyo的帖子

我的闪亮图标对于我的valuebox来说太大了，我知道如何通过添加“ fa-3x”将其更改为更大，但是有人可以告诉我如何将其更改为较小吗？谢谢！

 valueBox(
      value = format(movie.avg1, digits = 3),
      subtitle = NULL,  
      icon = if (movie.avg1 >= 3) icon("thumbs-up") else icon("thumbs-down"),
      color = if (movie.avg1 >= 3) "aqua" else "red"
    )

我想弄清楚如何点积。

b = matrix(1:70, ncol=7)
g= matrix(1:48, ncol=6)
resulta = matrix(0,6,7)
for (c in 1:ncol(b)){
  for (i in 1:ncol(g)){
    resulta[i,c] <- sum((g[,i]) * (b[,c]))
  }
}

警告信息：

1: In (g[, i]) * (b[, c]) :
  longer object length is not a multiple of shorter object length
2: In (g[, i]) * (b[, c]) :
  longer object length is not a multiple of shorter object length

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