尝试使用heatmap.2绘制时出现错误（与颜色有关）

Question

我正在尝试使用heatmap.2创建图，但我不断收到错误，该错误must have one more break than colour 。

如果有兴趣，我会改编此章的代码： https : //sebastianraschka.com/Articles/heatmaps_in_r.html

这是有问题的代码部分：

# creates a own color palette 
my_palette <- colorRampPalette(c("snow", "yellow", "darkorange", "red"))(n = 299)

# (optional) defines the color breaks manually for a "skewed" color transition
col_breaks = c(seq(0,0.15,length=100), #white
               seq(0.16,0.29,length=100), # for yellow
               seq(0.3,0.5,length=100), # for orange
               seq(0.51,1,length=100))    # for red

现在让我真正感到困惑的是，这行得通：

# creates a own color palette 
my_palette <- colorRampPalette(c("snow", "yellow", "red"))(n = 299)


# (optional) defines the color breaks manually for a "skewed" color transition
col_breaks = c(seq(0,0.29,length=100),  #white
                  seq(0.3,0.5,length=100), # for yellow
                  seq(0.51,1,length=100))  # for red

在我对为什么再次失败之前感到非常困惑之前，我似乎已经正确地修改了原始代码一次。

Answer 1

解决方案是：

# creates a own color palette 
my_palette <- colorRampPalette(c("snow", "yellow", "darkorange", "red"))(n = 399)

# (optional) defines the color breaks manually for a "skewed" color transition
col_breaks = c(seq(0,0.15,length=100), #white
               seq(0.16,0.29,length=100), # for yellow
               seq(0.3,0.5,length=100), # for orange
               seq(0.51,1,length=100))    # for red

唯一相关的更改是n=399 ，因为您定义了长度为400的col_breaks。