R ggplot2：使用一列作为 x 轴，其余作为 y 轴

Question

I have a large df resembling the following

A	B	C	D	E
1	10	3	9	5
2	4	6	9	5
4	8	12	7	3

I am trying to make a scatter plot where column A is the x-values and all values in the rest of the columns are the y-values with each column a separate color. I have tried the following but receive the error Error: unexpected ']' in p1

p1 <- ggplot(data = df.p, aes(df.p, aes(x=colnames(df.p[1]), y = colnames(df.p[2:]), colour=df.p[2:]))) + geom_point() + scale_colour_identity()

I have also tried x=get(colnames(df.p[1])) and x=df.p[1] but I always get the same error

I tried the solution here but got the error

Error: At least one layer must contain all faceting variables: `variable`.
* Plot is missing `variable`
* Layer 1 is missing `variable`

Answer 1

library(tidyverse)

df <- read.table(header = T, text = " A B   C   D   E
1   10  3   9   5
2   4   6   9   5
4   8   12  7   3")

df %>% 
  pivot_longer(!A) %>%
  ggplot(aes(x = A, y= value, color = name)) +
  geom_point()

^{Created on 2021-07-15 by the reprex package (v2.0.0)}