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How to create boxplot for a list object in base R?
A list object can contain multiple elements of data, also the size of the data may vary. If a list object has numerical vectors then the boxplot for each of the elements can be created simply by using boxplot function. For example, if we have a list object called LIST that contains five numerical vectors then the boxplot for each of the vectors can be created by using the command boxplot(LIST)
Example
List<-list(x1=rnorm(50),x2=rnorm(50,5,2.25),x3=rpois(20,5),x4=rexp(50,2.24)) List
Output
$x1 [1] 0.47673123 -0.13988530 -0.03454116 -1.07172674 -0.07038959 0.84246745 [7] -0.24880770 -0.16358068 0.58943824 -0.02419312 1.23205397 0.41819088 [13] -0.18096917 -0.66329446 0.59654575 -0.38813742 0.11389223 0.34736194 [19] -1.02731203 -1.00254775 -0.12265414 -0.26374874 0.70882415 0.94992258 [25] 0.94381547 -0.96601086 0.64740016 1.11793512 1.17730331 1.71042415 [31] -0.41691694 -0.96920255 0.41512216 1.26071518 -0.14539137 -1.16879555 [37] 1.38377334 3.45037406 1.35805370 0.47444658 -0.49433200 -0.36656357 [43] -0.21815763 -0.74840666 0.26719190 1.20493116 1.60986589 -0.60518029 [49] -0.41968672 -0.32073967 $x2 [1] 5.8796314 5.7298751 5.3845408 3.1797638 4.7799172 6.9741100 7.9921069 [8] 9.5581477 2.2260415 1.0497262 4.2621598 3.3089075 4.8928650 7.3186556 [15] 4.9003319 5.3323320 6.5852322 2.6108129 5.5484016 3.1658888 5.5651849 [22] 3.9454364 1.2637536 3.1110510 0.5324844 5.9578925 8.1218069 2.9446954 [29] 8.5903533 5.5571433 0.5557869 5.0468930 3.9626768 3.4359655 2.1267040 [36] 5.3730887 3.4845970 6.1972562 2.9490418 4.0302330 7.4539694 6.6024379 [43] 6.4314803 3.6497954 3.3413132 6.1229056 3.5588145 6.1242543 3.5965840 [50] 8.6095519 $x3 [1] 2 0 8 5 2 3 6 4 5 11 6 6 7 3 6 3 4 12 6 5 $x4 [1] 0.585750982 0.370122795 1.987015464 0.024077675 0.032587786 0.997293306 [7] 0.130429262 0.422050875 0.348886654 0.106149101 1.439493919 0.105526681 [13] 0.609840540 0.196605252 0.671462334 0.196896603 0.265777491 0.987109188 [19] 0.177649340 0.310512653 0.169546605 0.356390141 1.055593510 0.401508889 [25] 0.785761516 0.430135796 0.274123388 0.823727150 0.613929177 0.264846348 [31] 0.904656444 0.089555490 0.110510149 0.461548606 0.017619161 1.007491679 [37] 0.329095102 0.338861211 0.004771366 0.861360820 0.059209099 1.097892124 [43] 0.071317813 0.372330993 0.168262454 0.562485840 0.465475293 0.287788140 [49] 1.282085210 1.655309706
Example
boxplot(List)
Output
Updated on: 08-Feb-2021
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