[R] question about binary data file and data.frame

www.brook@gmail www.brook at gmail.com
Tue Feb 7 22:57:51 CET 2006


Each data (edge,weight) is numerical data with type double (4 bytes)

df<-file("d:/sim.data","rb")
age[1]<-readBin(df,double())
weigt[1]<-readBin(df,double())
...
age[10]<-readBin(df,double())
weigt[10]<-readBin(df,double())

it is not asc file.

	

======= 2006-02-07 13:03:17 =======

>www.brook at gmail wrote:
>> I have a binary file with data sequence in the order
>
> What do you mean by 'binary file'?
>
>> [age,weight][age,weight] ....
>
> How are age and weight encoded in this 'binary file'?
>
>> I know the length of the data and I want to load it into a
>> data.frame. of course a way to do this is to read age and weight
>> seperately and then use cbin(age,weight) to combine them into a
>> dataframe, but is there a better solution?
>> 
>
> Is it really an ASCII file? With age and weight separated by commas,
>and then age-weight pairs separated by spaces? Are there really square
>bracket pairs in there too?
>
> Or is it really a binary file, a series of 4 or 8-byte binary
>representations of age and weight?
>
> Barry

= = = = = = = = = = = = = = = = = = = =
			

¡¡¡¡¡¡¡¡¡¡¡¡¡¡
 
				 
¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡www.brook
¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡www.brook at gmail.com
¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡2006-02-07




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