greekLetters (version 1.0.2)

summary_greek: Summarizing Linear Model Fits With Greek Letters

Description

summary method with Greek letters for class "lm".

Usage

summary_greek(object, correlation = FALSE, symbolic.cor = FALSE, ...)

Value

The function is like summary.lm but with Greek letters in output.

Arguments

object

an object of class "lm", usually, a result of a call to lm.

correlation

logical; if TRUE, the correlation matrix of the estimated parameters is returned and printed.

symbolic.cor

logical. If TRUE, print the correlations in a symbolic form (see symnum) rather than as numbers.

...

Arguments passed on to stats::summary.lm

Author

Kévin Allan Sales Rodrigues.

Details

It is recommended that the font size of the R console be increased for better visualization of the symbols, as some of the symbols are quite small.

See Also

See summary.lm for more details.

Examples

# \donttest{
# Same example as summary.lm but with Greek letters
## Annette Dobson (1990) "An Introduction to Generalized Linear Models".
## Page 9: Plant Weight Data.
ctl <- c(4.17,5.58,5.18,6.11,4.50,4.61,5.17,4.53,5.33,5.14)
trt <- c(4.81,4.17,4.41,3.59,5.87,3.83,6.03,4.89,4.32,4.69)
group <- gl(2, 10, 20, labels = c("Ctl","Trt"))
weight <- c(ctl, trt)
lm.D9 <- lm(weight ~ group)
lm.D90 <- lm(weight ~ group - 1) # omitting intercept
coef(lm.D90)  # the bare coefficients
summary_greek(lm.D90 <- lm(weight ~ group -1))  # omitting intercept
 # }