Hello,
Your error is that you are not plotting the values in your file
See what is in df, it's one column only with 3 character strings,
c("Young_Control", "Young_Treated", "CHG_methylation"). Those *are not*
the names of columns, they are just strings.
The right way of doing it is to reshape your data from wide format to
long format first. I will reformat with tidyr::pivot_longer and pipe the
result directly to ggplot.
Also, given the large difference in the values plotted, I suggest you
comment out the code line with "log10", it will plot the y axis in the
logarithmic scale.
library(tidyverse)
library(ggplot2)
df1 %>%
pivot_longer(
cols = c("Young_Control", "Young_Treated"),
names_to = "Treatment",
values_to = "Value"
) %>%
ggplot(aes(x = CHG_methylation, y = Value, fill = Treatment)) +
geom_col(position = position_dodge(0.9)) +
#scale_y_continuous(trans = "log10") +
theme(axis.text.x = element_text(angle = 60, vjust = 1))
Hope this helps,
Rui Barradas
Às 22:01 de 16/02/20, pooja sinha escreveu:
Hi All,
I have data in excel with the following details:
CHG_methylation Young_Control Young_Treated
0-10% 95.23 94.53
10-20% 3.71 4.16
20-30% 0.68 0.8
30-40% 0.18 0.22
40-50% 0.07 0.09
50-60% 0.04 0.06
60-70% 0.02 0.04
70-80% 0.02 0.03
80-90% 0.02 0.03
90-100% 0.04 0.05
I am trying to plot the graph using ggplot2 but not successful yet. My code
is below:
library(readxl)
library(dplyr)
library(tidyverse)
data2 <- read_excel("CHG_meth_plot1.xlsx")
df <- data2
df <- data.frame(var=c("Young_Control", "Young_Treated", "CHG_methylation"))
df
ggplot(data = df, aes(x = var, y = CHG_methylation)) +
geom_bar(aes(fill = CHG_methylation))
I am getting error as something is wrong with my df. Also I needed to
create breaks in y-axis as I do not know whether it is possible in R or
not.
Any kind of help is highly appreciated.
Thanks,
Puja
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