It’s very necessary to have a look at the data source before trying to analyze it.

In this blog, I will share a powerful function ggpairs to implement the purpose.

Package

  • GGaly

  • ggplot2

  • reshape

Data Source

  • tips from reshape package

Load data

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library(GGally)
library(ggplot2)
data(tips, package = "reshape")
head(tips)
colnames(tips)
dim(tips)

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For each column

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ggpairs(tips, mapping = aes(color = sex))

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Select interested columns

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ggpairs(tips, mapping = aes(color = sex), 
        columns = c("total_bill", "time", "tip"), 
        columnLabels = c("Total_Bill(Continuous_variable)", "Time(discrete_variable)", "Tip(Continuous_variable)"),
        title = "Select_column")

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