title: How to label points on a scatterplot with R?
body: <p>I am new to R and would like to know how to label data points on a scatterplot. I tried the following code but I am getting error.</p>
  
  <pre><code>x = c(102856,17906,89697,74384,91081,52457,73749,29910,75604,28267,122136,
        54210,48925,58937,76281,67789,69138,18026,90806,44893)
  y = c(2818, 234, 2728, 2393, 2893, 1015, 1403, 791, 2243, 596, 2468, 1495,
        1232, 1746, 2410, 1791, 1706, 259, 1982, 836)
  
  plot(x, y, main="Scatterplot ", xlab="xaxis ", ylab="yaxis ", pch=19)
  
  names = c("A","C","E","D","G","F","I","H","K","M","L","N","Q","P","S","R",
            "T","W","V","Y")
  
  library(calibrate)
  textxy(x, y, labs=names, cx = 0.5, dcol = "black", m = c(0, 0))
  
  Error in text.default(X[posXposY], Y[posXposY], labs[posXposY], adj = c(-0.3,  :
  plot.new has not been called yet
  </code></pre>
  
  <p>I don't understand about this error. Please help me</p>