我有兴趣以热图风格呈现医院指标。我使用闪亮的,所以我喜欢交互式d3heatmap()
- 情节的外观和感觉(但我愿意接受替代方案)。
例如,假设我有4家医院和5个指标。我想绘制每个医院每个指标的得分情况,但是,着色不应该取决于指标的实际值,而是取决于单独进行的统计检验(80%的值可能意味着4/5,但也是800 / 1000,在估计的精度方面非常不同),具有以下分组:
示例数据(注意实际数字没有意义):
df <- data.frame(Hospital=rep(LETTERS[10:13], each=5),
Indicator=rep(LETTERS[1:5], 4),
Value=sample(1:10, 20, replace=T),
Conclusion=sample(c("above", "not different", "below"), 20, replace=T))
df$colour[df$Conclusion == "above"] <- "green"
df$colour[df$Conclusion == "not different"] <- "grey"
df$colour[df$Conclusion == "below"] <- "red"
df
做d3heatmap
我得到:
d1 <- dcast(df, Hospital ~ Indicator, value.var = "Value")
row.names(d1) <- paste0("hosp",d1[[1]])
d3heatmap(d1[-1], dendrogram = "none")
(截图) 当我将鼠标悬停在它上面时,我得到指标的实际分数,我感兴趣。但是,着色现在基于指标的实际分数,而不是我的数据框中的颜色。
如何在我的示例数据框中使用颜色,同时保留在鼠标悬停在绘图上时可视化指标值的选项?
答案 0 :(得分:1)
您可以简单地使用数字来编码颜色,然后使用colors
参数传递颜色进行解码:
df$colour[df$Conclusion == "above"] <- 1 #green
df$colour[df$Conclusion == "not different"] <- 2 #grey
df$colour[df$Conclusion == "below"] <- 3 #red
d1 <- dcast(df, Hospital ~ Indicator, value.var = "colour")
d3heatmap(d1[-1], dendrogram = "none", colors=c("green", "grey","red"))
答案 1 :(得分:0)
谢谢HubertL!我扩展它以得到确切的答案:
# Cast to get the matric with the values to display when hovering
d1 <- dcast(df, Hospital ~ Indicator, value.var = "Value")
row.names(d1) <- paste0("hosp",d1[[1]])
# Cast to get the matrix with the colours to display
df$colour[df$Conclusion == "above"] <- 1 #green
df$colour[df$Conclusion == "not different"] <- 2 #grey
df$colour[df$Conclusion == "below"] <- 3 #red
df$colour <- as.numeric(df$colour)
d2 <- dcast(df, Hospital ~ Indicator, value.var = "colour")
# Plot heatmap using colours, and refer to the value-matrix in the 'cellnote'
d3heatmap(d2[-1], dendrogram = "none", colors=c("blue", "grey","red"), cellnote = d1[-1])
补充问题:当(在我的情况下)指标名称很长时,有人知道如何扩大边距吗?