General
PromptBeginner5 minmarkdownQuality: 24
- Common families: binomial(link = logit)
poisson(link = log)
0
Explore
Find agent skills by outcome
133,324 skills indexed with the new KISS metadata standard.
Showing 24 of 133,324Categories: Data & Insights, Creative, General, Communication, Coding & Debugging
General
PromptBeginner5 minmarkdownQuality: 28
- Default family = gaussian(link = identity) — glm() with no family silently fits OLS (same as lm
but slower and with deviance-based output).
0
General
PromptBeginner5 minmarkdownQuality: 28
- I() is required to use arithmetic operators literally: y ~ x + I(x^2). Without I()
^ means interaction crossing.
0
General
PromptBeginner5 minmarkdownQuality: 24
- terms object attributes: order (interaction order per term)
intercept
0
Creative
PromptBeginner5 minmarkdownQuality: 28
- model.matrix creates the design matrix including dummy coding. Default contrasts: contr.treatment...
contr.poly for ordered.
0
General
PromptBeginner5 minmarkdownQuality: 24
- Captures output from cat
0
General
PromptBeginner5 minmarkdownQuality: 24
Non-obvious behaviors
gotchas
0
Coding & Debugging
PromptBeginner5 minmarkdownQuality: 24
- `URLencode(url
reserved = FALSE) by default does NOT encode reserved chars (/`
0
General
PromptBeginner5 minmarkdownQuality: 24
- Converts character vectors to appropriate types (logical
integer
0
General
PromptBeginner5 minmarkdownQuality: 24
- as.is = TRUE (recommended): keeps characters as character
not factor.
0
General
PromptBeginner5 minmarkdownQuality: 24
- `formatC(x
format = f
0
General
PromptBeginner5 minmarkdownQuality: 24
- Assignment form: `substr(x
1
0
General
PromptBeginner5 minmarkdownQuality: 24
- `format(x
digits
0
General
PromptBeginner5 minmarkdownQuality: 24
- which = both (default)
left
0
General
PromptBeginner5 minmarkdownQuality: 24
- `substring(x
first
0
Creative
PromptBeginner5 minmarkdownQuality: 24
- `substr(x
start
0
General
PromptBeginner5 minmarkdownQuality: 24
- Common mistake: unnamed arguments silently match fixed
perl
0
General
PromptBeginner5 minmarkdownQuality: 24
- Three regex modes: POSIX extended (default)
perl = TRUE
0
General
PromptBeginner5 minmarkdownQuality: 24
- Returns a list (one element per input string)
even for a single string.
0
General
PromptBeginner5 minmarkdownQuality: 28
- Name arguments explicitly — unnamed args after x/pattern are matched positionally to ignore.case
perl
0
General
PromptBeginner5 minmarkdownQuality: 24
- read.csv defaults differ from read.table: header = TRUE
`sep =
0
General
PromptBeginner5 minmarkdownQuality: 24
- sep = " (default) means any whitespace (spaces
tabs
0
General
PromptBeginner5 minmarkdownQuality: 24
Non-obvious behaviors
gotchas
0
General
PromptBeginner5 minmarkdownQuality: 24
- `file_test(-d
path)`: TRUE if directory exists.
0