aov
,
aovlist
,
bdFrame
,
bdGlm
,
bdLm
,
data.frame
,
factor
,
bdFactor
,
gam
,
glm
,
lm
,
loess
,
mlm
,
ms
,
nls
,
ordered
,
terms
,
tree
.
summary(object, ...)
bdFrame
, or a factor.
summary()
.
For example, the method for
lm
objects produces an object of
class
"summary.lm"
with components
"residuals"
,
"correlation"
,
"cov.unscaled"
,
"r.squared"
, and more.
There is a
print()
method corresponding to each
"summary."
class,
so typing
summary(object)
will not save the summary,
but rather produce a nicely formatted table of a selection of
the components in the summary object.
Simpler summary methods may get away without a special class; e.g.,
the summary for factors is the value of a call to
table()
.
Takes any S-PLUS object and returns a list of elements that describe the object's contents.
stackfit <- lm(formula=stack.loss ~ stack.x) # create object summary(stackfit) # Gives the following output: Call: lm(formula = stack.loss ~ stack.x) Residuals: Min 1Q Median 3Q Max -7.238 -1.712 -0.4551 2.361 5.698 Coefficients: Value Std. Error t value Pr(>|t|) (Int.) -39.9197 11.8960 -3.3557 0.0038 Air Flow 0.7156 0.1349 5.3066 0.0001 Water Temp 1.2953 0.3680 3.5196 0.0026 Acid Conc. -0.1521 0.1563 -0.9733 0.3440 Residual standard error: 3.243 on 17 degrees of freedom Multiple R-Squared: 0.9136 F-statistic: 59.9 on 3 and 17 degrees of freedom, the p-value is 3.016e-009 Correlation of Coefficients: (Intercept) Air Flow Water Temp Air Flow 0.1793 Water Temp -0.1489 -0.7356 Acid Conc. -0.9016 -0.3389 0.0002