[R] Read a dataset with different lengths

[Berton Gunter]

Without some sort of formatting or prior knowledge to indicate which fields
are present and which are missing, I don't see how such a file can be
properly read. With such formatting present, there are several ways. e.g.
See ?read.table, ?readLines, ?scan, ?connections,  ...

-- Bert Gunter
Genentech Non-Clinical Statistics
South San Francisco, CA
 
"The business of the statistician is to catalyze the scientific learning
process."  - George E. P. Box
 
 

> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch 
> [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Xiyan Lon
> Sent: Monday, March 21, 2005 9:41 AM
> To: R-help at stat.math.ethz.ch
> Subject: [R] Read a dataset with different lengths
> 
> Dear useR again,
> How can I read a dataset if lines in dataset did not have same
> elements (have different lengths), For example:
> 
> 1    2,  4, 16,  1,  1,  3,  1,  1, 15,  5,  1,  1, 14,  1,  1
> 2    2, 13,  5,  1,  1,  3,  1,  1, 15,  5,  1,  1, 14,  1,  1
> 3    4,  5, 11,  1,  1,  6,  1,  1,  5, 14,  1,  1, 15,  1,  1
> 4    2,  5,  9,  1,  1, 14,  1,  1,  8, 16,  1,  1, 13,  1,  1
> 5    3,  7, 14,  1,  1, 14,  1,  1,  5, 21,  1,  1,  8,  1,  1
> 6            6,  3,  1, 12,  1,  1,  5,  8,  1,  1, 15,  1,  1
> 7            6,  3,  1, 11,  1,  1, 10,  7,  1,  1, 21,  1,  1
> 8           21, 20,  9,  1,  1,  6,  1,  1, 13, 10,  1,  1,  1
> 9    5,  7, 21,  1,  1, 13,  1,  1, 14,  2,  1,  1,  6,  1,  1
> 10   8, 14, 10,  1,  1,  5,  1,  1, 10,  5,  1,  1,  5,  1,  1
> 11   5, 20, 17,  1,  1, 19,  1,  1, 14,  7,  1,  1,  6,  1,  1
> 12   7,  4, 11,  1,  1,  2,  1,  1,  5, 13,  1,  1, 14,  1,  1
> 13   7, 14, 13,  1,  1,  6,  1,  1, 13, 16,  1,  1, 17,  1,  1
> 14   7, 14,  5,  1,  1,  5,  1,  1,  5, 17,  1,  1, 17,  1,  1
> 15           3,  9, 12,  1,  1, 18,  1,  1,  6,  1,  4,  1,  1
> 16   7, 10,  5,  1,  1, 12,  1,  1,  5, 17,  1,  1, 13,  1,  1
> 17  12,  8, 16,  1,  1,  5,  1,  1,  8, 10,  1,  1, 14,  1,  1
> 18   5, 11,  7,  1,  1,  5,  1,  1, 18, 13,  1,  1, 17,  1,  1
> 19   7, 13,  8,  1,  1, 14,  1,  1,  5, 17,  1,  1, 13,  1,  1
> 20   7, 18, 21,  1,  1, 16,  1,  1,  5, 17,  1,  1, 13,  1,  1
> 
> I know that in BioC package rmutil have a function (read.list) to
> handle different lengths sets of lines but it did not work.
> > library(rmutil)
> Error in library(rmutil) : 'rmutil' is not a valid package -- 
> installed < 2.0.0?
> > 
> 
> Are there any others function to handle this.
> 
> Best regards
> Xiyan Lon
> 
> > version
>          _              
> platform i386-pc-mingw32
> arch     i386           
> os       mingw32        
> system   i386, mingw32  
> status                  
> major    2              
> minor    0.1            
> year     2004           
> month    11             
> day      15             
> language R              
> >
> 
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