Re: [R] Problems with Mann-Kendall trend test

[Morteza Firouzi via R-help]

Dear,
You have to store your data as a Time-Series (ts), first. To define a column of 
data as ts, you may use this:
library(timeSeries)Nile <- read.csv(file.choose(), header=F)#If your data is 
monthly, you may define the frequency as 12, for annual ts set freq. as 1.
#If your data starts from for e.g., 1990, then:NileTS <- ts(Nile, frequency=1, 
start=c(1990,1))#To plot the time seriesplot.ts(NileTS)
Morteza
 
 

On Saturday, June 18, 2016 3:47 AM, lily li  wrote:
 

 Dear R users,

Can anyone help me with mann-kendall trend test? I tried to use the newest
packages 'trend', and the function mk.test, but had problems in applying
the input data.

For example, res <- mk.test(Nile), Nile is a time-series data. But when I
use my dataset, with one column which is a time-series data, it says
"error: input must be ts object". How to do this? Thanks for your help.

    [[alternative HTML version deleted]]

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Re: [R] Problems with Mann-Kendall trend test

[Jeff Newmiller]

Not reproducible. Use dput to generate R code form of your data along with the 
code that gave you the error, and set the email to plain text only when you 
send it so it doesn't get corrupted when the html is stripped on the mailing 
list. 
-- 
Sent from my phone. Please excuse my brevity.

On June 17, 2016 12:47:07 PM PDT, lily li  wrote:
>Dear R users,
>
>Can anyone help me with mann-kendall trend test? I tried to use the
>newest
>packages 'trend', and the function mk.test, but had problems in
>applying
>the input data.
>
>For example, res <- mk.test(Nile), Nile is a time-series data. But when
>I
>use my dataset, with one column which is a time-series data, it says
>"error: input must be ts object". How to do this? Thanks for your help.
>
>   [[alternative HTML version deleted]]
>
>__
>R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
>https://stat.ethz.ch/mailman/listinfo/r-help
>PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.

[[alternative HTML version deleted]]

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R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

[R] Problems with Mann-Kendall trend test

[lily li]

Dear R users,

Can anyone help me with mann-kendall trend test? I tried to use the newest
packages 'trend', and the function mk.test, but had problems in applying
the input data.

For example, res <- mk.test(Nile), Nile is a time-series data. But when I
use my dataset, with one column which is a time-series data, it says
"error: input must be ts object". How to do this? Thanks for your help.

[[alternative HTML version deleted]]

__
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.