Label: Extract the Label for a Variable

In Lahman: Sean Lahman's Baseball Database

Description

Extracts the label for a variable from one or more of the *Labels files.

Usage

Label(var, labels)

Arguments

var	name of a variable
labels	label table(s) to search, a 2-column dataframe containing variable names and labels. The default is rbind(battingLabels, pitchingLabels, fieldingLabels).

Value

Returns the variable label, or var if no label is found

Author(s)

Michael Friendly

See Also

battingLabels, pitchingLabels, fieldingLabels

Examples

require(plyr)
# find and plot maximum number of homers per year
batHR <- ddply(subset(Batting, !is.na(HR)), .(yearID),
		summarise, max=max(HR))
		
with(batHR, {
  plot(yearID, max, 
       xlab=Label("yearID"), ylab=paste("Maximum", Label("HR")), 
       cex=0.8)
  lines(lowess(yearID, max), col="blue", lwd=2)
  abline(lm(max ~ yearID), col="red", lwd=2)
	})

Lahman documentation built on May 2, 2019, 5:25 p.m.