Multiple lineplot with Errobar for data coming from two tables - r

Question

I have two data sheets, one with the points I want to plot (each point in the first data set is an average of different measurements), and the second data containing the standard deviations for each point.
Below I attached an R script to create lineplot from the first data which works fine. With the code i can create a plot like the following
Now I want to use the second table (standard deviations) to create a plot similar the previous, but now also showing a errorbar, i.e., that graphically displays the standard deviation of each measurements like this.
library(ggplot2)
##loads a dataframe and returns a ggplot object that can be externally modified and plotted
makeMultipleLinePlot <- function(data){
require(reshape2)
data$id <-rownames(data)
melted <- melt(data)
colnames(melted)<-c("Measurement","Month","Percentage")
g<-ggplot(data=melted,
aes(x=Month, y=Percentage, color=Measurement,group=Measurement)) +
geom_line(size=1,alpha=0.8) + geom_point(size=4,aes(shape=Measurement))
return(g)
}
##load a table from google sheets. assumes the sheet has a single table
loadTableFromGoogleSheet <- function(url, sheet) {
require(gsheet)
a <- gsheet2text(url,sheetid=sheet, format='csv')
data <- read.csv(text=a, stringsAsFactors=FALSE,header = TRUE,row.names = 1)
return(data)
}
#URL of the google spreadsheet
url <- "docs.google.com/spreadsheets/d/10clnt9isJp_8Sr7A8ejhKEZXCQ279wGP4sdygsit1LQ"
gid.humidity <- 2080295295 #gid of the google sheet containing humidity data
data.humidity<-loadTableFromGoogleSheet(url,gid.humidity)
gid.humidity_sd <- 1568896731 #gid of the google sheet containing standard deviations for each measurement in the humidity data
data.humidity_sd<-loadTableFromGoogleSheet(url,gid.humidity_sd)
ggsave(filename="lineplot/humidity.pdf", plot=makeMultipleLinePlot(data.humidity))
#ggsave(filename="lineplot/humidity.pdf", plot=makeMultipleErrorPlot(data.humidity,data.humidity_sd))

Answer 1

This tidy the two data.frame, join them and plot the result, using geom_errorbar:
library(dplyr)
library(tidyr)
library(ggplot2)
df <- data.humidity %>%
mutate(measure = row.names(.)) %>%
gather(month, value, -measure)
df_sd <- data.humidity_sd %>%
mutate(measure = substr(row.names(.), 1, 2)) %>%
gather(month, sd, -measure)
dfF <- full_join(df, df_sd)
#> Joining, by = c("measure", "month")
ggplot(dfF, aes(month, value, group = measure, color = measure))+
geom_line(size=1,alpha=0.8) +
geom_point(aes(shape = measure)) +
geom_errorbar(aes(ymin = value - sd, ymax = value + sd), width = .3)