将回归线更改为直形状

发布于 2025-02-11 19:11:35 字数 328 浏览 1 评论 0原文

我实际上是在R.中建立了我的第一个线性回归，我偶然发现了最后一步：您能建议如何将我的垫脚线性回归更改为直线吗？我可以添加简单的可视化命令吗？我写的代码是：

MyDataSet.plot <- MyDataSet.plot + 
   geom_line(data=plotting.data2, 
             aes(x=MyXvariable, y=predicted.y, color=MyOtherIndependentVariable), 
             size=1.25) 
MyDataSet.plot

请对我说非常小的r :)谢谢

原文

I'm literally building my first ever linear regression in R. And I stumbled on the very last step: could you advise how to change my stepped linear regression into straight line? Is there simple visualisation command I can add? The code I wrote is:

MyDataSet.plot <- MyDataSet.plot + 
   geom_line(data=plotting.data2, 
             aes(x=MyXvariable, y=predicted.y, color=MyOtherIndependentVariable), 
             size=1.25) 
MyDataSet.plot

Please speak very elementary R to me :) Thanks

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别理我 2025-02-18 19:11:35

这个最小的例子是您要实现的目标吗？

library(tidyverse)

# Sample data
df <- tribble(~x, ~y, ~col,
        1, 3, "a",
        2, 5, "a",
        3, 4, "a",
        4, 5, "a",
        1, 6, "b",
        2, 7, "b",
        3, 7, "b",
        4, 9, "b"
        )

# Plot
ggplot(df, aes(x, y, colour = col)) +
  geom_line() +
  geom_smooth(method = "lm", se = FALSE, linetype = "dashed")
#> `geom_smooth()` using formula 'y ~ x'

^{在2022-06-30创建的 reprex软件包（v2.0.1）}

Is this minimal example what you'd like to achieve?

library(tidyverse)

# Sample data
df <- tribble(~x, ~y, ~col,
        1, 3, "a",
        2, 5, "a",
        3, 4, "a",
        4, 5, "a",
        1, 6, "b",
        2, 7, "b",
        3, 7, "b",
        4, 9, "b"
        )

# Plot
ggplot(df, aes(x, y, colour = col)) +
  geom_line() +
  geom_smooth(method = "lm", se = FALSE, linetype = "dashed")
#> `geom_smooth()` using formula 'y ~ x'