General
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library(lmtest) # Breusch-Pagan
Durbin-Watson etc.
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Showing 24 of 131,226Categories: Data & Insights, General, Coding & Debugging, Communication, Data
General
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library(car) # Type II/III ANOVA
VIF
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General
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Copy this file
rename it
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General
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- `adjustcolor(col
alpha.f = 0.5)`: easy way to add transparency.
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General
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- colorRamp returns a function mapping [0
1] to RGB matrix.
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General
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- `hcl(h
c
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General
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- `dev.copy(pdf
file = plot.pdf) followed by dev.off()` to save current plot.
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General
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- `rgb(r
g
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General
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- Must call dev.off() to finalize the file. Without it
file may be empty/corrupt.
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General
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- `rect(xleft
ybottom
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Coding & Debugging
PromptBeginner5 minmarkdownQuality: 24
- arrows: code = 1 (head at start)
code = 2 (head at end
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General
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- `persp(x
y
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General
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- `contour(x
y
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General
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- For image
x and y specify cell boundaries or midpoints depending on context.
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General
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- Plots columns of one matrix against columns of another. Recycles col
lty
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General
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- panel function receives `(x
y
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Data
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- Formula interface: `pairs(~ var1 + var2 + var3
data = df)`.
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General
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- First argument can be an expression in x or a function: `curve(sin
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General
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- Read-only parameters: cin
cra
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General
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- mtext: line argument positions text in margin lines (0 = adjacent to plot
positive = outward). adj controls horizontal position (0-1).
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General
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- `axis(side
at
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General
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- usr with log scale: contains log10 of the coordinate limits
not the raw values.
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General
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- las: 0 = parallel to axis
1 = horizontal
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General
PromptBeginner5 minmarkdownQuality: 24
- `mgp = c(3
1
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