[R] Newbie in R: Reading .txt files and storing the 'numbers' in a vector

Patrick Connolly p_connolly at slingshot.co.nz
Wed Jul 29 22:37:03 CEST 2009


On Wed, 29-Jul-2009 at 10:29AM +0200, Patrick Schorderet wrote:

>
> Hello everybody,
>
> I'm a newbie in R and just went through an introduction class recently.

Did you get the distinction between a vector and a dataframe? 


>
> Here's my problem.
> I have 2 text files (.txt) with plain numbers ('doubles' for those who  
> know c++) ordered into 2 columns as below:
>
> coordinate1		value1
> coordinate2		value2
> coordinate3		value3
> ...				...
> coordinateN		valueN
>
> I would like to write a small programme in which i would:
> 1. take all values of file 1 and store them in a vector

I'm fairly certain you need a dataframe, hence the recommendation to
look at read.table.



> 2. substract to those all values of file 2 (one by one) and store the  
> result in a new vector
> 3. Create a sliding window of chosen size and calculate the mathematical 
> average and store these averages in a new vector
> 4. Plot the different graphes with a bar plot

Those will follow simply once you have the first part working.

HTH

-- 
~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.   
   ___    Patrick Connolly   
 {~._.~}                   Great minds discuss ideas    
 _( Y )_  	         Average minds discuss events 
(:_~*~_:)                  Small minds discuss people  
 (_)-(_)  	                      ..... Eleanor Roosevelt
	  
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