greeks {greekLetters}

Function that returns strings with Greek letters

Description

Function to obtain strings with Greek letters and mathematical symbols with or without subscripts and superscripts.

Usage

greeks(greekletter)

Arguments

greekletter

is a string that contains the Greek letter name.

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.

The subscripts and supersripts are restricted to numbers 0 to 9.

For users working with Rgui this function don't accept subscripts and just accept superscripts 1, 2 and 3. For more details run the commands:

symbols printed as a "rectangle" don't work in RGui, but these symbols work normally in RStudio.

To see names of symbols use print_greeks.

Value

Returns the desired Greek letter or mathematical symbol in string format.

Author(s)

Kévin Allan Sales Rodrigues.

Examples

# Linear regression
paste("y", " = X", greeks("beta"), " + ", greeks("epsilon"), sep ="")

# pi constant
paste(greeks("pi"), greeks("almostEqual"), "3.14")

# Expected value
paste("E[X] = ", greeks("integral"), "xf(x)dx", sep = "")

greeks("sigma^2")

greeks("Delta^5")

greeks("yourname^9")

# testing statistical hypothesis
paste(greeks("H_0"),":", greeks("mu"), " = 0")
paste("versus", greeks("H_1"), ":", greeks("notEqual"), " 0" )

# returns the Greek letters
paste("The Greek letters", greeks("alpha"), greeks("beta"), "...", greeks("omega"), ".", sep=", ")