Line plot not producing lines...

General
1

Hi, I am trying to graph some experimental data in R studio to try to make a line plot. My script is able to run successfully, however the figures generated only produce the data points and not a line. I fear it may be an issue with out my data is organized in the table in my .txt file. Any advice would be helpful as I want to try to calculate the rate of gas produced/consumed (mol) per day.

C2H4
C2H4711×444 70.3 KB

One image because I can only bed one at a time...

library(ggplot2)
library(dplyr)
library(tidyr)

rm(list=ls(all=T))

data <- read.delim("DATA.txt", sep = "\t", header = TRUE)

# Cleaning data
data_clean <- data %>%
  mutate(across(everything(), ~gsub("[?]", "", .))) %>%  # Remove "?" characters
  mutate(across(-c(Day, Treatment), as.numeric))         # Convert to numeric

data_clean %>%
  ggplot(aes(Day, CH4,
             colour = Treatment))+
  geom_point(size = 3, alpha = 0.5)+
  geom_errorbar(aes(ymin = CH4-CH4_SEM, ymax = CH4+CH4_SEM))

data_clean %>%
  ggplot(aes(Day, C2H4,
             colour = Treatment))+
  geom_point(size = 3, alpha = 0.5)+
  geom_errorbar(aes(ymin = C2H4-C2H4_SEM, ymax = C2H4+C2H4_SEM))

data_clean %>%
  ggplot(aes(Day, CO2,
             colour = Treatment))+
  geom_point(size = 3, alpha = 0.5)+
  geom_errorbar(aes(ymin = CO2-CO2_SEM, ymax = CO2+CO2_SEM))

#all three make the line plots without the line...
2

Replace geom_point() with geom_line(), or add geom_line() in addition to the 2 other geoms.

e.g.

data_clean %>%
  ggplot(aes(Day, CH4,
             colour = Treatment))+
  geom_point(size = 3, alpha = 0.5)+
  geom_line() +
  geom_errorbar(aes(ymin = CH4-CH4_SEM, ymax = CH4+CH4_SEM))