[R] plot problem in version 2.3.0 with dates as x

jun.zang at jpmorgan.com jun.zang at jpmorgan.com
Wed May 31 21:13:26 CEST 2006

Hi, I have some old programs running well for older versions 2.2.0 and
2.1.1, but cannot run under 2.3.0.  The problem is in plot with dates as x:

test <- data.frame( x = c(1:20), date = as.date(1:20))
plot(test$date, test$x)
Error in plot.window(xlim, ylim, log, asp, ...) :
        "log=" specification must be character

Is this a bug in v2.3.0?


Jun Zang
Fixed Income Research
JP Morgan Asset Management

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