[英]selection the classes of observations using heatmaply in R
The simple example简单的例子
library(heatmaply)
heatmaply(mtcars, k_col = 2, k_row = 3) %>% layout(margin = list(l = 130, b = 40))
and we get this plot我们得到了这个情节
We see that the observations were divided on 3 clusters
我们看到观察被分为 3 个集群
1 from honda civic to ferrari dino
2 from valiant to dodge challendger
3 from chrysler imperial to maserati bora
Also we see that technical parameters(variables) were divided by two classes我们还看到技术参数(变量)分为两类
The first class **hp** and **disp**
The second class another parameters
how can I output in dataframe the name(or number) of those observations that, on the one hand, they in the first cluster (cars of the first cluster), and they are located at the area of the first cluster of technical variables.我如何在数据框中输出这些观察的名称(或编号),一方面,它们在第一个集群(第一个集群的汽车)中,并且它们位于第一个技术变量集群的区域。 In other words, I identified this area on screen below
换句话说,我在下面的屏幕上确定了这个区域
Accordingly, the output must be made for observations of all clusters of cars in different clusters of technical variables.因此,必须针对不同技术变量集群中所有汽车集群的观察进行输出。 It is easy to calculate that it will be 6 areas.
很容易计算出它将是6个区域。
Here is an example of getting the same things using heatmapr (the function behind heatmaply):以下是使用 heatmapr(heatmaply 背后的函数)获取相同内容的示例:
example_data <- mtcars # replace this with your data.
library(dendextend) # how to cite it, see citation("heatmaply")
x <- heatmapr(example_data )
library(dendextend) # how to cite it, see citation("dendextend")
data_groups <- cutree(x$rows, k = 3) # choose the k/number of clusters you see/want.
data_groups
# This is how to see the groups of your data
split(example_data, data_groups )
The output will be:输出将是:
$`1`
mpg cyl disp hp drat wt qsec vs am gear carb
Mazda RX4 21.0 6 160.0 110 3.90 2.620 16.46 0 1 4 4
Mazda RX4 Wag 21.0 6 160.0 110 3.90 2.875 17.02 0 1 4 4
Datsun 710 22.8 4 108.0 93 3.85 2.320 18.61 1 1 4 1
Merc 240D 24.4 4 146.7 62 3.69 3.190 20.00 1 0 4 2
Merc 230 22.8 4 140.8 95 3.92 3.150 22.90 1 0 4 2
Merc 280 19.2 6 167.6 123 3.92 3.440 18.30 1 0 4 4
Merc 280C 17.8 6 167.6 123 3.92 3.440 18.90 1 0 4 4
Fiat 128 32.4 4 78.7 66 4.08 2.200 19.47 1 1 4 1
Honda Civic 30.4 4 75.7 52 4.93 1.615 18.52 1 1 4 2
Toyota Corolla 33.9 4 71.1 65 4.22 1.835 19.90 1 1 4 1
Toyota Corona 21.5 4 120.1 97 3.70 2.465 20.01 1 0 3 1
Fiat X1-9 27.3 4 79.0 66 4.08 1.935 18.90 1 1 4 1
Porsche 914-2 26.0 4 120.3 91 4.43 2.140 16.70 0 1 5 2
Lotus Europa 30.4 4 95.1 113 3.77 1.513 16.90 1 1 5 2
Ferrari Dino 19.7 6 145.0 175 3.62 2.770 15.50 0 1 5 6
Volvo 142E 21.4 4 121.0 109 4.11 2.780 18.60 1 1 4 2
$`2`
mpg cyl disp hp drat wt qsec vs am gear carb
Hornet 4 Drive 21.4 6 258.0 110 3.08 3.215 19.44 1 0 3 1
Valiant 18.1 6 225.0 105 2.76 3.460 20.22 1 0 3 1
Merc 450SE 16.4 8 275.8 180 3.07 4.070 17.40 0 0 3 3
Merc 450SL 17.3 8 275.8 180 3.07 3.730 17.60 0 0 3 3
Merc 450SLC 15.2 8 275.8 180 3.07 3.780 18.00 0 0 3 3
Dodge Challenger 15.5 8 318.0 150 2.76 3.520 16.87 0 0 3 2
AMC Javelin 15.2 8 304.0 150 3.15 3.435 17.30 0 0 3 2
$`3`
mpg cyl disp hp drat wt qsec vs am gear carb
Hornet Sportabout 18.7 8 360 175 3.15 3.440 17.02 0 0 3 2
Duster 360 14.3 8 360 245 3.21 3.570 15.84 0 0 3 4
Cadillac Fleetwood 10.4 8 472 205 2.93 5.250 17.98 0 0 3 4
Lincoln Continental 10.4 8 460 215 3.00 5.424 17.82 0 0 3 4
Chrysler Imperial 14.7 8 440 230 3.23 5.345 17.42 0 0 3 4
Camaro Z28 13.3 8 350 245 3.73 3.840 15.41 0 0 3 4
Pontiac Firebird 19.2 8 400 175 3.08 3.845 17.05 0 0 3 2
Ford Pantera L 15.8 8 351 264 4.22 3.170 14.50 0 1 5 4
Maserati Bora 15.0 8 301 335 3.54 3.570 14.60 0 1 5 8
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