Making plots with binary predictor

[costanza]

Hello everyone! I'm kind of new to RStudio and I am using it for my dissertation project. I'm almost done with it, the only thing I need is some pretty plots I have tried and tried but I have not accomplished anything. Does anyone have any suggestions about how to build a meaningful plot? I understand that I should use the function predict() but I am still not sure how.. most examples I found had the binary variable as response, not predictor as I do.

Many thanks!
(i do have the package ggplot despite what the reprex says)

library(ggplot)
#> Error in library(ggplot): there is no package called 'ggplot'

# my data frame - rainfall_binary is numeric even tho it is a binary

df <- data.frame(
  VH_average = c(-18.4527033816948,
                 -16.2644305598873,-16.1847107297772,-16.1971205524948,
                 -16.5239874732068,-17.2211302093816,-18.2875256347705,
                 -13.7489056675713,-14.5000673290099,-15.4042266341501),
  rainfall_binary = c(1, 1, 1, 1, 1, 1, 1, 1, 1, 1),
  temp = c(4.05, 4.05, 4.05, 4.05, 4.05, 4.05, 7, 7, 7, 7)
)

# make GLM

GLM.REPREX <- glm(data=df, VH_average~rainfall_binary+temp)

^{Created on 2020-03-24 by the reprex package (v0.3.0)}

[andresrcs]

@costanza

(i do have the package ggplot despite what the reprex says)

Just to clarify, the package is called ggplot2

[nirgrahamuk]

library(tidyverse)  
df$predicted <- predict.glm(GLM.REPREX,
            newdata = df )

would add a column that shows what your model predicted.

As far as graph goes, you should think about what information it is you are trying to communicate to your reader....