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我正在尝试为 ggplot2 图重新标记 x 和 y 方面。

我发现了多种编写函数来重新标记一个方面的方法，但不是两者兼而有之。

head(nh2)  
        RatioIncomePoverty Ethnicity Education mean.bmi  
1                  0         1         1       26.18333  
2                  0         1         1       30.88000  
3                  0         1         2       32.03000  
4                  0         1         4       34.45000  
5                  0         2         1       26.33000  
6                  0         2         2       23.44000  

b2 <- qplot(RatioIncomePoverty, mean.bmi, data=nh2, facets=Education~Ethnicity)
b2 = b2 + labs(list(title="Average BMI and Ratio of Family Income to Poverty Threshold     among US Ethnic groups", x = "Ratio of Family Income to Poverty Threshold", y = "Average BMI"))
b2

目前，教育和种族都有 1-5 的值，我想将它们重命名为它们在调查中对应的值。

Education:    
1 = "<9th"  
2 = "9th-11th"  
3 = "GED"  
4 = "Some/AA"  
5 = "Grad"  

Ethnicity:  
1 = "Mex/Amer"  
2 = "OtherHisp"  
3 = "White"  
4 = "Black"  
5 = "Other/Multi"
4

1 回答 1

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为什么不简单地创建以这些为级别的因子呢？

eth <- c('Mex/Amer', 'OtherHisp', 'White', 'Black', 'Other/Multi')
edu <- c('<9th', '9th-11th', 'GED', 'Some/AA', 'Grad')

nh2 <- within(nh2, {ethFac <- factor(Ethnicity, labels = eth)
                    eduFac <- factor(Education, labels = edu)})

 b2 <- qplot(RatioIncomePoverty, mean.bmi, data=nh2, facets=eduFac~ethFac)
于 2013-04-24T01:32:31.713 回答