If you are coming from Python or Excel, R feels alien. Arrays start at index 1, not 0. Assignment uses `<-` instead of `=`. And the error messages are notoriously unhelpful.
Most students fail R assignments not because they don't understand the statistics, but because they get stuck on **Data Wrangling**. Trying to filter a dataset with `dplyr` and getting a "could not find function" error because of a library conflict is a rite of passage we help you skip.
Why R Feels So Different from Other Languages
The 'Red Text' Nightmares We Fix:
- The Knitting Disaster: Your code works in the console, but the .Rmd file crashes when you try to export to PDF.
- Data Type Mismatches: R reading your numbers as 'Characters' because of one comma in the CSV.
- Package Hell: Conflicts between `plyr` and `dplyr` breaking your `group_by` functions.
- Graphing Errors: `ggplot` error messages about 'Aesthetics must be either length 1 or the same as the data'.
Is your issue purely mathematical (theory based)? See our Statistics Theory Help.