[R-SIG-Finance] contribution: chart_Series with vertical/horizontal lines

[Gordon Erlebacher]

My programming approach seems much simpler than what I have seen. I do
not use substitute, grep, parse etc., commands,
that I pretty much don't understand. I attach the source code.

The following draws two horizontal lines and two vertical lines.
Inside the function I create two additional functions:

  horizontal.lines = function(y.coords, xmin, xmax, col='red')
  vertical.lines = function(x.coords, ymin, ymax, col='red')

Enjoy!  Feedback is appreciated.


    myChart_Series(BAS,x.coords=c(1000,1200),y.coords=c(28.,29.))


     gordon
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