convert 12 time stamp to 24 hour
Hi
-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
project.org] On Behalf Of e-letter
Sent: Monday, February 11, 2013 2:31 PM
To: r-help at r-project.org
Subject: Re: [R] convert 12 time stamp to 24 hour
Readers,
Have since tried to plot converted 24 hour data:
testtimedataset
V1
1 13:01:41
2 13:02:10
3 13:02:38
4 13:03:05
5 13:03259
testdata<-seq(1:5) plot(testdata~testtimedataset)
Error in function (formula, data = NULL, subset = NULL, na.action = na.fail, : invalid type (list) for variable 'testtimedataset' Was expecting to see a graph with ordinate values 1:5 for the time series values on the abscissa. What is the mistake please?
The main mistake is that you did not pay attention to provided documentation especially R-intro. You try to plot a data frame against a vector testdata. We do not know, what is testtimedataset. You shall provide at least str(testtimedataset) or better dput(testtimedataset) Anyway, by plot(testdata~testtimedataset$V1) you will get rid of error message but depending on testtimedataset mode you can get different one. Regards Petr
-- r2151
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