Re: [R] how to do this sum?

From: GuangXing <guangxing_at_ict.ac.cn>
Date: Mon 19 Jun 2006 - 21:05:51 EST

I am sorry for my ignorance.
table_x is defined as follow:
>table_x<-read.table("stat.txt")
in the stat.txt,there are 5 cols,there are so many big intergers in the every cols. Now, I want to to that:
>sum(table_x[,3])
But it does not work.
How can I?
Pls help me!



GuangXing
2006-06-19

发件人:Dr L. Y Hin
发送日期:2006-06-19 17:16:04
收件人:GuangXing
抄送:
主题:Re: [R] how to do this sum?

Of course.
table_x means assign x to the function called table. if you call the table by the name table.x, it will probably do the job.

> Hi, Everybody!
> I have a big table which named table_x, and all the elements in the table
> is very large!
> Now I want to do the summay on the talbe_x[,3].
> Unfornately, I can't get the right result!
> And the R give the warning messages as follow:
>> sum(table_x[,3])
>>[1] NA
>>Warning message:
>>interger overflow in sum(.);please use sum(as.numeric(.))
> (the original upper message is Chinese,and I have translated those to
> English.)
>
> Any one tell me how to use the as.numeric(.)?
> And I want to know does R support the 64bits interger?How to do?
> Pls forgive my ignorance.
>
> Thank you in advance!
> --------------
> GuangXing
> 2006-06-19
>
>


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