Coding & Debugging
PromptBeginner5 minmarkdown
I'm a political science PhD candidate who uses R regularly but would never call myself *an R person*. I needed a Claude Code skill for base R — something without tidyverse
without ggplot2
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Showing 24 of 18,560Categories: Data & Insights, Writing & Content, Coding & Debugging, Creative
Writing & Content
PromptBeginner5 minmarkdown
writeLines(template
out_file)
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Writing & Content
PromptBeginner5 minmarkdown
# write.csv(df
%s_clean.csv
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Writing & Content
PromptBeginner5 minmarkdown
# write.csv(df
data_clean.csv
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Coding & Debugging
PromptBeginner5 minmarkdown
- `arrows`: `code = 1` (head at start)
`code = 2` (head at end
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Creative
PromptBeginner5 minmarkdown
- `nstart > 1` recommended (e.g.
`nstart = 25`): runs algorithm from multiple random starts
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Coding & Debugging
PromptBeginner5 minmarkdown
- `SANN` (simulated annealing): convergence code is **always 0** — it never fails. `maxit` = total function evals (default 10000)
no other stopping criterion.
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Creative
PromptBeginner5 minmarkdown
- Self-starting models (`SSlogis`
`SSasymp`
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Creative
PromptBeginner5 minmarkdown
- `aov` is a wrapper around `lm` that stores extra info for balanced ANOVA. For unbalanced designs
Type I SS (sequential) are computed — order of terms matters.
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Creative
PromptBeginner5 minmarkdown
- `model.matrix` creates the design matrix including dummy coding. Default contrasts: `contr.treatment` for unordered factors
`contr.poly` for ordered.
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Coding & Debugging
PromptBeginner5 minmarkdown
- `URLencode(url
reserved = FALSE)` by default does NOT encode reserved chars (`/`
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Creative
PromptBeginner5 minmarkdown
- `substr(x
start
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Writing & Content
PromptBeginner5 minmarkdown
- `write.csv` fixes `sep =
`
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Coding & Debugging
PromptBeginner5 minmarkdown
- `as.numeric(f)` returns **integer codes**
not original values. Use `as.numeric(levels(f))[f]` or `as.numeric(as.character(f))`.
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Coding & Debugging
PromptBeginner5 minmarkdown
- Factor indexing: `x[f]` uses integer codes of factor `f`
not its character labels. Use `x[as.character(f)]` for label-based indexing.
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Creative
PromptBeginner5 minmarkdown
- `tryCatch(expr
warning = function(w) {...})` catches the **first** warning and exits. Use `withCallingHandlers` + `invokeRestart(muffleWarning)` to suppress warnings but continue.
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Creative
PromptBeginner5 minmarkdown
- `Reduce` with `init` adds a starting value: `Reduce(f
x
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Writing & Content
PromptBeginner5 minmarkdown
write.csv(df
output.csv
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Coding & Debugging
PromptBeginner5 minmarkdown
A comprehensive reference for base R programming — covering data structures
control flow
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Coding & Debugging
PromptBeginner5 minmarkdown
description: Provides base R programming guidance covering data structures
data wrangling
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Writing & Content
PromptBeginner5 minmarkdown
- Explain audit log usage and contents for compliance and investigations (actor
context
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Coding & Debugging
PromptBeginner5 minmarkdown
- With **GHEC data residency**
you choose where company code and selected data are stored (including the **EU**)
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Writing & Content
PromptBeginner5 minmarkdown
TGA: Hydrate/solvate content
decomposition
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Writing & Content
PromptBeginner5 minmarkdown
TGA: Decomposition temperature
filler content
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