Plotting two variables as lines using R on the same graph

Question

l have a file having two fields. l want to plot a line plot where x-axis will be days and y-axis will be the frequency of AA and BB. and lines will be AA and BB. I tried some R packages but could not get it. Any lead would be appreciated.

Disease days
AA  7
AA  5
AA  5
AA  15
AA  4
AA  15
AA  5
AA  7
BB  4
BB  3
BB  11
BB  6
BB  12
BB  6
BB  9
BB  20
BB  4
BB  2

Why did you remove your sample data? A screenshot is *always* a bad idea, as we can't copy and paste data. — Maurits Evers, Jan 16 '19 at 11:24
Disease days AA 7 AA 5 AA 5 AA 15 AA 4 AA 15 AA 5 AA 7 BB 4 BB 3 BB 11 BB 6 BB 12 BB 6 BB 9 BB 20 BB 4 BB 2 — Gab, Jan 16 '19 at 11:25
@Gab Don't add data/code in comments. I've reversed your edit to include the original data as text (which is one of the preferred ways of sharing data around here). For future posts, please review how to provide a [minimal & reproducible example](https://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example). — Maurits Evers, Jan 16 '19 at 11:27
@MauritsEvers, thanks for your suggestions. I will not add data in the comment section. — Gab, Jan 16 '19 at 11:33

score 0 · Answer 1 · answered Jan 16 '19 at 11:25

You could do something like this

library(tidyverse)
df %>%
    group_by(Disease, days) %>%
    summarise(Freq = n()) %>%
    ggplot(aes(days, Freq, colour = Disease)) +
    geom_line()

Sample data

df <- read.table(text =
    "Disease days
AA  7
AA  5
AA  5
AA  15
AA  4
AA  15
AA  5
AA  7
BB  4
BB  3
BB  11
BB  6
BB  12
BB  6
BB  9
BB  20
BB  4
BB  2", header = T)

Plotting two variables as lines using R on the same graph

1 Answers1

Sample data