[英]Dendrogram in R: how to properly hang branches (after coloring the labels)?
I have gone through other questions asked on this topic and have managed to "partially" get what I need. 我经历了关于该主题的其他问题,并设法“部分地”获得了我所需要的。 I want my dendrogram 's leaves to be color coded.
我希望我的树状图的叶子采用颜色编码。 Each leave represents a market and I have another column within my DF that tells what type of market it is via color codes "Red", "Yellow" or "Green" (which have be encoded as numbers: "1", "2", "3").
每个休假代表一个市场,我在DF中还有另一列,它通过颜色代码“红色”,“黄色”或“绿色”(已编码为数字:“ 1”,“ 2”)来告诉它是什么类型的市场。 ,“ 3”)。 Each market has a color code.
每个市场都有一个颜色代码。 I want the labels to be the markets themselves, but the color of the labels to be based on color codes.
我希望标签是市场本身,但标签的颜色要基于颜色代码。
Labels <- DF$Markets
color_codes <- DF$Type
Data_scale # obtained after removing the columns of 'Markets' and 'Type'
# from DF and scaling it.
row.names(Data_scale) <- Labels
hc <- hclust(dist(Data_scale)))
dend <- as.dendrogram(hc)
colors_to_use <- color_codes
colors_to_use <- colors_to_use[order.dendrogram(dend)]
labels_colors(dend) <- colors_to_use
plot(dend, cex = 0.8)
My issue is that when I plot this, labels do get coded but the tree is really elongated. 我的问题是,当我绘制此图形时,标签会被编码,但是树确实很长。 It is so long that the labels too are being cut off.
太长了,标签也被切断了。 What do I do?
我该怎么办?
I needed to "hang" the labels rather than plot them all on a single height. 我需要“悬挂”标签,而不是将所有标签都放在一个高度上。 Following did the trick:
以下是技巧:
dend %>% set("leaves_pch", 19) %>% set("leaves_cex", 2) %>%
set("leaves_col", 2) %>% # adjust the leaves
hang.dendrogram(dend, hang_height = 0.01) %>% # hang the leaves
plot(main = "Hanging a tree")
https://cran.r-project.org/web/packages/dendextend/vignettes/introduction.html https://cran.r-project.org/web/packages/dendextend/vignettes/introduction.html
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