CODEWITHSUNDEEP
rggplot2
Learner
Learner

Reputation: 757

how can I make the order of x axis in a correct way

I have been struggling with a plot for sometimes 

df<- structure(list(x = c("1", "2", "3", "4", "5", "6", "7", "8", 
"9", "10", "11", "12", "1", "2", "3", "4", "5", "6", "7", "8", 
"9", "10", "11", "12"), variable = structure(c(1L, 1L, 1L, 1L, 
1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 
2L, 2L, 2L, 2L), .Label = c("my_rep1a", "you_rep2a"), class = "factor"), 
    value = c(-7.70891, 0.9699727, 3.644688, 2.810303, -4.579114, 
    -6.57653, -1.938455, 3.201102, 4.951608, -1.263285, -0.9699727, 
    3.675765, -2.269753, -1.255846, 1.336035, -0.7997434, -0.4488655, 
    0.4488655, 0.7199451, 2.504063, 0.7398947, 0.6827841, -3.841076, 
    -3.018841)), row.names = c(NA, -24L), class = "data.frame")

SO I plot it like this 

ggplot(data = df, aes(x = x, y = value,
          group = variable, color = variable)) + geom_line()

it does not give me the right order in x axis

I did try to change my x to character as df$x <- as.character(df$x) but did not help . The same when I convert it to integer

if I use integer or numeric, it gives me different numbers in x axis which I cannot know if it plots it correctly or not

enter image description here

Upvotes: 2

Views: 561

Answers (1)

Rui Barradas
Rui Barradas

Reputation: 76663

One way is to get acquainted with package stringr, function str_sort. Set argument numeric = TRUE to sort characters numerically.

lvls <- stringr::str_sort(unique(df$x), numeric = TRUE)
df$x <- factor(df$x, levels = lvls)

ggplot(data = df, aes(x = x, y = value,
                      group = variable, color = variable)) + 
  geom_line()

enter image description here

Upvotes: 2

Related Questions