quantstrat - problems adding multiple indicators

This has been discussed on this list multiple times.

TTR is taking the column namees of your market data and appending the
indicator.

so:

Cl(mktdata)

will return multiple columns after the first indicator has been applied.

you most likely want

quote(Cl(mktdata)[,1])

to get only the first column.

Brian

Ah, indeed, that does work, although Googling for 'quantstrat' and
'quote(Cl(mktdata)[,1])' doesn't turn up much.

None the less, I now see that Cl() is finding all names with 'close'
anywhere in the name which indeed isn't want I thought it was doing
and the first one is the one I want:

head(Cl(mktdata))

SPY.Close SPY.Close.SMA.50.ind3 SPY.Close.SMA.200.ind4
2008-12-31     82.08                    NA                     NA
2009-01-02     84.56                    NA                     NA
2009-01-05     84.46                    NA                     NA
2009-01-06     85.02                    NA                     NA
2009-01-07     82.47                    NA                     NA
2009-01-08     82.81                    NA                     NA

Thanks for the quick (and reasonably friendly!) ;-) response.

Cheers,
Mark