R help - Dec 2010 - Help with diff(sqrt()) function in terms of time series

year1 is the time series data set below
11.64
11.50
11.49
11.16
11.15
11.37
11.37
11.57
11.83
11.87
11.85
11.92
11.77
11.71
11.57
11.24
11.27
11.33
11.17
.................

With a total of 1304 rows of data.

When I try to run the code:
diff(sqrt(year10))
I get the response: "data frame with 0 columns and 1304 rows" and then
I
subsequently try to convert my data into a time series with the following
function:
 yearstate = ts(diff(sqrt(year10)))
> yearstate
Time Series:
Start = 1 
End = 1304 
Frequency = 1 

   1
   2
   3
   4
   5
............all the way to 1304.  So, it basically erased all of my previous
data, and the data are just row numbers all the way to 1304...  Any help
would be appreciated.  I tried my best to produce actual code.  
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Addi Wei wrote:
> 
> year10 is the time series data set below
> 11.64
> 11.50
> 11.49
> 
> ...I tried my best to produce actual code.  
> 
Please post str(year10).

Dieter

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Hi

r-help-bounces at r-project.org napsal dne 05.12.2010 00:19:17:
> 
> year1 is the time series data set below
> 11.64
> 11.50
> 11.49
> 11.16
> 11.15
> 11.37
> 11.37
> 11.57
> 11.83
> 11.87
> 11.85
> 11.92
> 11.77
> 11.71
> 11.57
> 11.24
> 11.27
> 11.33
> 11.17
> .................
> 
> With a total of 1304 rows of data.
> 
> When I try to run the code:
> diff(sqrt(year10))
Probably year10 is factor. Make it numeric.

Regards
Petr


> I get the response: "data frame with 0 columns and 1304 rows" and
then I
> subsequently try to convert my data into a time series with the 
following
> function:
>  yearstate = ts(diff(sqrt(year10)))
> > yearstate
> Time Series:
> Start = 1 
> End = 1304 
> Frequency = 1 
> 
>    1
>    2
>    3
>    4
>    5
> ............all the way to 1304.  So, it basically erased all of my 
previous
> data, and the data are just row numbers all the way to 1304...  Any help
> would be appreciated.  I tried my best to produce actual code. 
> -- 
> View this message in context: 
http://r.789695.n4.nabble.com/Help-with-diff-
> sqrt-function-in-terms-of-time-series-tp3072877p3072877.html
> Sent from the R help mailing list archive at Nabble.com.
> 
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