[Bioc-devel] DataFrameList to Wide Format DataFrame

A metadata column on a DataFrame runs along its 2nd dimension so is not 
a good place to put the list names.

Have you tried unlist()?

 ? library(S4Vectors)

 ? DF <- DataFrame(id=letters[1:10], score=runif(10))

 ? f <- sample(LETTERS[1:3], 10, replace=TRUE)

 ? DFL <- split(DF, f)

 ? DFL
 ? # SplitDataFrameList of length 3
 ? # $A
 ? # DataFrame with 2 rows and 2 columns
 ? #? ????????? id???? score
 ? # ? <character> <numeric>
 ? # 1?????????? f? 0.894709
 ? # 2?????????? h? 0.801125
 ? #
 ? # $B
 ? # DataFrame with 1 row and 2 columns
 ? #? ????????? id???? score
 ? # ? <character> <numeric>
 ? # 1?????????? d? 0.538166
 ? #
 ? # $C
 ? # DataFrame with 7 rows and 2 columns
 ? #? ????????? id???? score
 ? # ? <character> <numeric>
 ? # 1?????????? a 0.0145477
 ? # 2?????????? b 0.2507581
 ? # 3?????????? c 0.4388678
 ? # 4?????????? e 0.5219524
 ? # 5?????????? g 0.6377634
 ? # 6?????????? i 0.1892103
 ? # 7?????????? j 0.1829650

 ? unlist(DFL)

 ? # DataFrame with 10 rows and 2 columns
 ? #? ????????? id???? score
 ? # ? <character> <numeric>
 ? # A?????????? f 0.8947085
 ? # A?????????? h 0.8011255
 ? # B?????????? d 0.5381664
 ? # C?????????? a 0.0145477
 ? # C?????????? b 0.2507581
 ? # C?????????? c 0.4388678
 ? # C?????????? e 0.5219524
 ? # C?????????? g 0.6377634
 ? # C?????????? i 0.1892103
 ? # C?????????? j 0.1829650

BTW this is a user question so is more appropriate for the support site.

H.

Good day,

Is there a function in the S4Vectors API which converts a 
DataFrameList into a DataFrame, automatically putting the list names 
into one of the metadata columns, analogous to MultiAssayExperiment's 
wideFormat function? The scenario is mutliple data sets from different 
organisations measuring the largely the same set of features and 
patient outcome, but on completely different sets of patients in each 
organisation.

--------------------------------------
Dario Strbenac
University of Sydney
Camperdown NSW 2050
Australia

_______________________________________________
Bioc-devel at r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/bioc-devel

Herv? Pag?s

Bioconductor Core Team
hpages.on.github at gmail.com