[R] as.Date and Legend in a plot

David Winsemius dw|n@em|u@ @end|ng |rom comc@@t@net
Fri Jun 22 22:33:38 CEST 2018

> On Jun 22, 2018, at 12:12 PM, Ogbos Okike <giftedlife2014 using gmail.com> wrote:
> Dear Contributors,
> I am surprised that I cannot add legend to a certain plot. Although the
> x-axis indicates years, the actual data was in year, month and day format.
> I then used as.Date to play around and get what I am looking for. I am,
> however, worried that I cannot add legend to the plot no matter how I
> tried. Looking at the axis, I tried:
> legend(1998,3, c("Climax", "Thule", "Sopo"), lty = 1, col =
> c("black","red","blue")). I also tried:
> legend(as.Date(1998-02-10),

I don't think you understand the difference between character values and numeric values. Thr using 


> 3, c("Climax", "Thule", "Sopo"), lty = 1, col =
> c("black","red","blue"))
> but no result and no error.
> I have attached the plot in case it will assist in your suggestions.
> Many thanks for your time.
> Ogbos
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David Winsemius
Alameda, CA, USA

'Any technology distinguishable from magic is insufficiently advanced.'   -Gehm's Corollary to Clarke's Third Law

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