merge.IdMap {IdMappingAnalysis} | R Documentation

## Merge the IdMap object with a second IdMap object or a list of IdMap objects

### Description

Merges the IdMap object (this) with a second IdMap object or a list of IdMap objects on secondary IDs (second column) usind the mergeOp and on row names using the rowMergeOp. the result is then ordered by the primary key of 'this' IdMap object. The method can be used as object specific as well as static. In the latter case the method merges the list of IdMap objects by using IdMap$merge(idMapSet) call signature.

### Usage

    ## S3 method for class 'IdMap'
    merge(x, y, mergeOp, rowMergeOp=mergeOp, verbose=FALSE, ...)

### Arguments

`idMapSet` | IdMap object or a list of ID Map objects to merge with.
`mergeOp` | merge operation (intersect, union etc) performed on the secondary ID list.
`rowMergeOp` | merge operation (intersect, union etc) performed on the rows of merged ID Maps.
`verbose` | if `TRUE` enables diagnostic messages.
`...` | Not used.

### Value

An IdMap object containing the merge result.

### Author(s)

Alex Lisovich, Roger Day

### See Also

For more information see `IdMap`.

### Examples

     obj1<-IdMap(examples$identDfList[[1]]);
     obj2<-IdMap(examples$identDfList[[2]]);

     #intersection
     mergedObj<-merge(obj1,obj2,intersect);
     rbind(dim(obj1),dim(obj2),dim(mergedObj));

     #difference
     mergedObj<-merge(obj1,obj2,setdiff);
     rbind(dim(obj1),dim(obj2),dim(mergedObj));

     #union using the static call
     mergeObj<-IdMap$merge(examples$identDfList,union,verbose=TRUE);

[Package IdMappingAnalysis version 1.28.0 Index]