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I want to show four different plots side-by-side in a single window. I am using ggplot2. Do I need to use a separate package, or is there a built-in feature to arrange multiple ggplots?...

I am struggling with date formats. One column is 'DD-MM-YYYY' and another is 'YYYY/MM/DD'. When I try to plot them, R treats them as character strings rather than dates. What is the standard way to co...

I am having a hard time remembering the syntax for subsetting. I have tried the square bracket [row, column] notation, but I always get confused when I want to filter by a condition. Could someone pro...

I keep hearing about R Markdown. Is it just a text editor, or does it do something more? I want to create reports that combine my code, the plots, and the narrative. Is this the right tool for that?...

I have received a file in JSON format that contains nested information. How can I parse this and convert it into a flat dataframe that I can work with in R?...

I am trying to learn more about the apply functions. When should I use apply() vs lapply() or sapply()? Is there a specific use-case where apply() is superior?...

I have a scatter plot, but the axis labels are overlapping, and the range is too wide. How do I manually set the axis limits and rotate the labels so they are readable?...

When I get an error, I usually just print values to the console. Is there a professional way to debug in RStudio? I have heard of browser() and other tools, but I am not sure how to use them....

I am trying to work with categorical data, and R keeps converting my strings into integers behind the scenes. This is causing errors in my plots. What are factors exactly, and how do I prevent R from ...

My code works, but it throws a bunch of warning messages. How can I suppress these warnings to make the output cleaner, and should I be worried about them, or are they just noise?...