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

From: <www.brook_at_gmail>
Date: Wed 08 Feb 2006 - 08:57:51 EST


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.         

>www.brook@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@gmail.com
          2006-02-07



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