Hi,

The dataset has four time variables.
Each variable has data in "1/6/2006  12:58:55 PM" format.
I applied the subtraction function (=E2-D2) for calculating difference
between variable1 and variable2 for each record.
I copied those values and pasted in another column using "Paste special ->
values" option.
Then I imported the dataset into R and tried to plot histogram for this new
column.
At that time it gave an error *"Error in hist.default(third_var) : x should
be numeric"*

Kindly provide your suggestions on the same.


Thanks,
Shreyasee



On Thu, Jun 18, 2009 at 2:25 PM, Allan Engelhardt <allane@cybaea.com> wrote:

> On 18/06/09 06:38, Shreyasee wrote:
>
>> Hi,
>>
>> I have a dataset and calculated the time difference between two time
>> variables.
>> The output is somewhat like *"1/29/2324  1:57:39 AM".*
>>
>>
> That is not a time difference you have calculated.
>
> (x<-difftime("2009-12-31 12:00","2009-01-01 08:45"))
> # Time difference of 364.1354 days
>
> Change your calculation to be a time difference and you should be fine.
>  See help("strftime") if needed.
>
> Always post self-contained code examples.
>
> Allan
>

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