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这是我的ggpairs情节代码:

library(ggplot2)
library(tidyr)
library(GGally)
           ggpairs(data = Food,
          mapping = aes(color = "darkorange"),
          columns = 2:4,
          upper = "blank",
          diag = "blank",
          axisLabels = "none",
  
          ) +
      theme_bw() + scale_color_manual(values = "darkorange") +
      #theme(plot.caption = element_text(face =  "TT Times New Roman")) +
      #theme(text = element_text(family = "A")) +
      #theme(axis.text = element_text(size = 8)) +
      labs(caption = "Källa: Coop", title = "Sambandet mellan olika produkter") + 
      theme(plot.title = element_text(hjust = 0.5)) 

我需要将绘图中文本的字体更改为 Times New Roman,并增加每列中文本的大小。“#”之后的代码不起作用,我想知道是否有人可以帮助我解决这个问题。

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