得分输出正常,但是绘制不正确-我需要在代码中添加另一个参数吗?
分数的代码和输出如下。
library(caret)
#GENERALISED LINEAR MODEL
LR_swim <- lm(racetime_mins ~ event_date+ event_month +year +event_id +
gender + distance_new + New_Condition+
raceNo_Updated +
handicap_mins +points+
Wind_Speed_knots+
Air_Temp_Celsius +Water_Temp_Celsius +Wave_Height_m,
data = SwimmingTrain)
family=gaussian(link = "identity")
varImp2<-varImp(object=LR_swim)
plot(varImp2,main="Variable Importance")
总体 event_date 24.463358 event_month 22.358448 年24.399390 event_id 26.878342 性别女性30.422470 性别男13.273062 distance_new 248.727351 新条件22.574999 raceNo_Updated 9.812053 残障人士分钟134.914137 点40.443116 风速结14.492203 Air_Temp_Celsius 16.562194 Water_Temp_Celsius 2.861662 Wave_Height_m 8.592716
#ClassOutput
class(varImp2)
[1] "data.frame"
#HeadOutput
> head(varImp2)
Overall
event_date 24.46336
event_month 22.35845
year 24.39939
event_id 26.87834
genderfemale 30.42247
gendermale 13.27306
我的样子;
应该看起来像
答案 0 :(得分:0)
根据所需的结果,您的目标是从数据框中绘制数字列,并按该列中的值在y轴上对其进行排序。我将以mtcars
数据集为例。
library(caret)
LR_mtcars <- glm(mpg ~ ., data = mtcars, family = gaussian)
varImp2 <- varImp(LR_mtcars)
varImp2
是一个数据框。现在添加一个名为“标签”的列。我们将此列设为factor
,然后根据“总体”中的值对其进行排序。
varImp2$labels <- factor(rownames(varImp2))
varImp2$labels <- reorder(varImp2$labels, varImp2$Overall)
然后我们可以绘制值。对于图的第一次迭代,我们将x和y轴的标题留为空白,并将y轴的标签留为空白。然后,我们将它们添加回去。
plot(x = varImp2$Overall, y = varImp2$labels, main = "Variable Importance",
yaxt = "n", ylab = "", xlab = "")
axis(2, at = 1:nrow(varImp2), labels = levels(varImp2$labels), las = 2)
title(xlab = "Importance")
这给了我们
答案 1 :(得分:0)