[R-sig-Geo] facing the bad move: how to retrieve old (sp) data after an upgrade...?

[Roger Bivand]

On Wed, 7 Feb 2007, Edzer J. Pebesma wrote:

> Perhaps try
> 
>  > pija.scoressp at data@att[[1]]

For R < 2.4, the magic was that the new style classes were empty lists 
with all the data in attributes, so this might be:

attr(attr(pija.scoressp, "data"), "att")[[1]]

(untried)

Roger

> 
> etc.
> --
> Edzer
> 
> Horacio Samaniego wrote:
> > I first need to apologize as I  have made a mistake, I know that I  
> > should have read the Breaking News before (http://www.sal.uiuc.edu/ 
> > tools/tools-sum/rgeo/r-spatial-projects)
> >
> > Now I am trying to step back so that I can retrieve my data. However,  
> > I don't seem to find old versions of the sp and spdep I need 0.8* of  
> > sp as I have messed up my objects 'big time'  by upgrading the whole  
> > installation.
> >
> > The question is this:
> >
> > - What is the best method to make up this error? (I'm hoping that I  
> > am not the only one...)
> > or
> > - Is re-installing old versions of the packages the only method?
> >
> > - Where can I find the repository for old packages?
> >
> > thanks in advance! Any hint is appreciated
> >
> > The errors I get are not apparent at first sight... but I later tried  
> > to retrieve a column of the @data in a SpatialPointsDataFrame object  
> > and just got >NULL
> >
> > here's the sequence:
> >
> >  > pija.scoressp at data[,1]
> > Error in pija.scoressp at data[, 1] : incorrect number of dimensions
> >  > pija.scoressp at data$PC1
> > NULL
> >  > names(pija.scoressp at data)
> > NULL
> >
> > However I can see the data with str():
> >  > str(pija.scoressp)
> > list()
> > - attr(*, "bbox")= num [1:2, 1:2] 1032800  333100 1211500  474500
> >    ..- attr(*, "dimnames")=List of 2
> >    .. ..$ : chr [1:2] "slongitude" "slatitude"
> >    .. ..$ : chr [1:2] "min" "max"
> > - attr(*, "proj4string")= list()
> >    ..- attr(*, "projargs")= chr "+proj=aea +lat_0=23.0000000000  
> > +lat_1=29.5000000000 +lat_2=45.5000000000 +lon_0=-96.0000000000  
> > +x_0=0.0000000000 +y_0=0.0000000"| __truncated__
> >    ..- attr(*, "class")= atomic [1:1] CRS
> >    .. ..- attr(*, "package")= chr "sp"
> > - attr(*, "coords")= num [1:111, 1:2] 1131900 1120300 1092600 1114200  
> > 1092600 ...
> >    ..- attr(*, "dimnames")=List of 2
> >    .. ..$ : NULL
> >    .. ..$ : chr [1:2] "slongitude" "slatitude"
> > - attr(*, "data")= list()
> >    ..- attr(*, "att")=List of 37
> >    .. ..$ PC1 : num [1:111]   -8.10 -191.88   -9.30  -28.90   -8.12 ...
> >    .. ..$ PC2 : num [1:111] -25.05 316.29  -9.20 -20.25  -8.59 ...
> >    .. ..$ PC3 : num [1:111]  -17.470 -104.794    0.333   48.261    
> > -0.136 ...
> >    .. ..$ PC4 : num [1:111]  -7.1660 -99.8927  -0.0452   3.9708   
> > -4.5581 ...
> >    .. ..$ PC5 : num [1:111]  24.83 210.48  -6.93   3.92 -12.88 ...
> >    .. ..$ PC6 : num [1:111]   4.80 -19.21   2.76 -87.98   7.33 ...
> >    .. ..$ PC7 : num [1:111] -19.88  -2.51  -2.57 -69.88  -4.70 ...
> >    .. ..$ PC8 : num [1:111]   4.42  29.52   3.81 -21.48  12.54 ...
> >
> > ........
> >
> >
> >
> >
> >
> > Horacio
> >
> >
> >
> > 	[[alternative HTML version deleted]]
> >
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> > R-sig-Geo at stat.math.ethz.ch
> > https://stat.ethz.ch/mailman/listinfo/r-sig-geo
> >
> 
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-- 
Roger Bivand
Economic Geography Section, Department of Economics, Norwegian School of
Economics and Business Administration, Helleveien 30, N-5045 Bergen,
Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
e-mail: Roger.Bivand at nhh.no