quantmod: addTA is broken?

class(CottonSpreadsheet)

Michael,

It's hard to speculate without knowing what the data you have looks
like. Can you send the output of
class(CottonSpreadsheet)
colnames(CottonSpreadsheet)
?

Also, did you run with debug(addTA)? You can probably narrow down the
problem by stepping through the function yourself.

Brian


On Sun, 2008-12-14 at 14:23 +0100, Michael Zak wrote:

You're absolutely right. I gave you a wrong example.

Let's say I have OHLC data from Cotton over the last 80 days. In a
spreadsheet I got from a client the computed EMA values for cotton's
daily high. So I import the computed values (the last 80) in R like
this:

require(quantmod)
CottonSpreadsheet <- read.table(...)
CottonSpreadsheet <- last(CottonSpredsheet, 80)
OHLC <- last(Cotton, 80)
chartSeries(OHLC, type = "bars")
addTA(CottonSpeadsheet)

Now I got this error message:

Fehler in tav * 0.975 : nicht-numerisches Argument f?r bin?ren  
Operator
Zus?tzlich: Warning message:
In merge.zoo(lchob at xdata, ta, join = "left", retside = c(FALSE,  :
  Index vectors are of different classes: POSIXt POSIXt integer  
integer

I get the chartSeries(), but without the added addTA. I don't know  
why
this first line of the error message is in German. I hope you can  
help
me anyway.

Thank you, Michael

On 14.12.2008, at 13:40, Gabor Grothendieck wrote:

That's a warning message, not an error message.  This suppresses it:

suppressWarnings(plot(addTA(min55, on = 1)))


On Sun, Dec 14, 2008 at 5:14 AM, Michael Zak <zakdump at gmail.com>
wrote:

Hi there

I have here some financial charts which I did a couple of months
ago with
quantmod. Today, I recharted my data with chartSeries(), which
works fine.
As soon as I add some indicators with addTA() I get a error  
message.

For example:
require(quantmod)
require(TTR)
getSymbols("YHOO")
chartSeries(YHOO)
min55 <- runMin(YHOO$YHOO.Low, 55)
addTA(min55, on = 1)


I get this message:

Warning messages:
1: In merge.zoo(lchob at xdata, ta, join = "left", retside =  
c(FALSE,  :
Index vectors are of different classes: POSIXt POSIXt integer  
integer


How can I solve this?

Thank you, Michael