Prompt:
Asking good questions is a valuable skill to have - asking questions in an online setting is both easier and harder than asking questions in person: we can prepare to ask a question but we are also expected to prepare. The links posted here give some advice on how to ask good questions:
stackoverflow’s Asking a good question
minimal complete verifiable example, minimal reproducible example
Follow these links and read through the advice given, then
- Pick at least one question from stackoverflow or the R help and answer it.
Write a blog post answering the following questions:
Document which question you answered (link to your answer).
Relate your experience of answering the question to your reading.
Instructions to follow.
I answered this question from stackoverflow: https://stackoverflow.com/questions/75245310/change-colors-in-bar-chart-in-r-to-other-colors/75250501#75250501
The original poster (OP) of the question I answered was having trouble getting a bar plot created using ggplot2 to look the way they wanted. It was very helpful that the OP provided their code with the question. However, the OP’s code used a dataset that was not built into R and the OP did not include code to create the dataset for the plot. This broke one of the guidelines for minimal reproducible examples. Fortunately, the requested plot was simple enough that I could recreate the issue using the built-in iris dataset in R. The problem turned out to be that the OP wanted to use the fill aesthetic to change the color of the bars on the plot via scale_fill_manual but did not have anything mapped to the fill aesthetic. In my answer, I provided an example very similar to the OP’s code, except I used the iris dataset with the variable Species mapped to the x aesthetic to define the bars and also mapped Species to the fill aesthetic so I could use scale_fill_manual to change the colors of the bars.