solder {rpart} | R Documentation |
The solder
data frame has 720 rows and 6 columns, representing
a balanced subset of a designed experiment varying 5 factors on the
soldering of components on printed-circuit boards.
Opening |
a factor with levels
L
M
S
indicating the amount of clearance around the mounting pad.
|
Solder |
a factor with levels
Thick
Thin
giving the thickness of the solder used.
|
Mask |
a factor with levels
A1.5
A3
B3
B6
indicating the type and thickness of mask used.
|
PadType |
a factor with levels
D4
D6
D7
L4
L6
L7
L8
L9
W4
W9
giving the size and geometry of the mounting pad.
|
Panel |
1:3 indicating the panel on a board being tested.
|
skips |
a numeric vector giving the number of visible solder skips. |
This data frame contains the following columns:
John M. Chambers and Trevor J. Hastie eds. (1992) Statistical Models in S, Wadsworth and Brooks/Cole, Pacific Grove, CA 1992.
data(solder) fit <- rpart(skips ~ Opening + Solder + Mask + PadType + Panel, data=solder, method='anova') summary(residuals(fit)) plot(predict(fit),residuals(fit))