plot function does not accept "quarters" in tick options anymore

[eniso-partners]

In the new release the plot function sends an error when using "quarters" for the option majors.ticks or minor.ticks. I expect it to plot with a tick mark every quarter.

require(PerformanceAnalytics)
require(xts)
data(edhec)
plot(edhec, major.ticks = "quarters")
Error in match.arg(ticks.on, c("auto", tick.opts)) :
'arg' doit être un de “auto”, “years”, “months”, “weeks”, “days”, “hours”, “minutes”, “seconds”

[joshuaulrich]

Thanks for the report. Though this did not throw an error in v0.10-2, it doesn't appear to have worked correctly. For example:

library(xts)
data("sample_matrix")
x <- as.xts(sample_matrix, dateFormat = "Date")

axTicksByTime(x)
# Jan 02 2007 Jan 08 2007 Jan 15 2007 Jan 22 2007 Jan 29 2007 Feb 05 2007 Feb 12 2007 Feb 19 2007 
#           1           7          14          21          28          35          42          49 
# Feb 26 2007 Mar 05 2007 Mar 12 2007 Mar 19 2007 Mar 26 2007 Apr 02 2007 Apr 09 2007 Apr 16 2007 
#          56          63          70          77          84          91          98         105 
# Apr 23 2007 Apr 30 2007 May 07 2007 May 14 2007 May 21 2007 May 28 2007 Jun 04 2007 Jun 11 2007 
#         112         119         126         133         140         147         154         161 
# Jun 18 2007 Jun 25 2007 Jun 30 2007 
#         168         175         180 

axTicksByTime(x, "quarter")  # same as "auto"
# Jan 02 2007 Jan 08 2007 Jan 15 2007 Jan 22 2007 Jan 29 2007 Feb 05 2007 Feb 12 2007 Feb 19 2007 
#           1           7          14          21          28          35          42          49 
# Feb 26 2007 Mar 05 2007 Mar 12 2007 Mar 19 2007 Mar 26 2007 Apr 02 2007 Apr 09 2007 Apr 16 2007 
#          56          63          70          77          84          91          98         105 
# Apr 23 2007 Apr 30 2007 May 07 2007 May 14 2007 May 21 2007 May 28 2007 Jun 04 2007 Jun 11 2007 
#         112         119         126         133         140         147         154         161 
# Jun 18 2007 Jun 25 2007 Jun 30 2007 
#         168         175         180 
packageVersion("xts")
# [1] '0.10.2'

[eniso-partners]

Thank you for your prompt answer. I notice that I now use the version 0.11-0 of xts and your example above throws an error:

axTicksByTime(x, "quarter")
Error in match.arg(ticks.on, c("auto", tick.opts)) :
'arg' should be one of “auto”, “years”, “months”, “weeks”, “days”, “hours”, “minutes”, “seconds”

[joshuaulrich]

Yes, I confirm that it throws an error in 0.11-0. My comment was that the output in 0.10-2 was not correct. It returned weekly locations, not quarterly.