mvlabs: Move Text Labels Interactively

In caroline: A Collection of Database, Data Structure, Data Conversion, Visualization, Reporting, and General Utility Functions

Move Text Labels Interactively

Description

There is no easy way to move point labels around interactively on an a plot in R. This function allows a point and click way to select (using identify) and move (using locator) points by modifying the underlying dataframe.

Usage

mvlabs(df, n=nrow(df), x='x', y='y', l='lab', cols=colors()[grep("dark",colors())], ...)

Arguments

df	A dataframe with x and y coordinates and text labels.
n	the number of points you wish to move.
x	the column name of the x axis coordinates.
y	the column name of the y axis coordinates.
l	the column name of the point labels.
cols	the color vector to iterate through while assigning new positions.
...	other parameters passed on to text.

See Also

locator,identify,labsegs

Examples

  x <- rnorm(20); y <- rnorm(20)
  df <- data.frame(x,y, lab=as.character(letters[1:20]))
  plot(df$x, df$y, pch=''); text(df$x, df$y, df$lab)
  ## df <- mvlabs(df, 'x','y','lab', n=3)  
  plot(df$x, df$y, pch=''); text(df$x, df$y, df$lab)

caroline documentation built on July 15, 2026, 9:06 a.m.