latticist - covariate, "z" variable about playwith

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"Groups / Covariate"
categorical --> groups
numeric --> color (but not for barchart / histogram / densityplot)
  + option for covariate in xyplot: 
     "tile" --> levelplot(g ~ x * y, panel=panel.tile)
(add options for cutEq() of numerics)?
(and omit 1:nrow(dat) from groups/conditioning)

"z" / "y2":  ((must be numeric)) ((only allow when both x and y are selected))
* if option "y--z segments", or if x is categorical, use segplot(y * y2 ~ x)
   + option "y+/-z": segplot(I(y-y2) * I(y+y2) ~ x, draw.bands=FALSE, centers=y)
* otherwise use cloud(z ~ x * y)
  -- requries that x and y are numeric?
  -- note "aspect" is different (set panel.aspect, only if numeric); 
     also pch="+", or cross=TRUE is special

-- move "Labels" option into menus?

Original comment by foolish.android on 7 Aug 2008 at 3:56

• Changed title: latticist - covariate, "z" variable
• Added labels: Priority-High
• Removed labels: Priority-Medium

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color covariate: col = with(dat, Variable)
use current lattice regions palette?
add colorkey?

Original comment by foolish.android on 14 Aug 2008 at 6:53

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Original comment by foolish.android on 30 Aug 2008 at 12:13

• Changed state: Fixed