how convert a data frame or table to a VectorSpaceModel?

[rgoldsto]

I have a word vector data frame created outside of wordVectors that currently looks like
V1 V2 V3 V4 V5 .............
1 der -0.1292338 1.41541564 0.72683984 -0.08601953
2 die -0.7408874 1.23070979 1.60728443 0.21427894
3 und 0.1368700 0.21688898 0.09194378 -0.42764056
4 in -0.9566143 1.17804027 0.13917272 1.63949668
5 von -1.2693109 0.92857528 -0.88062751 1.41522074
6 den -0.8766794 0.45545051 1.42592216 -1.87232220
7 des 0.8585002 0.80657679 2.12942553 -1.49346220
8 im -1.8885295 0.35904437 0.97661573 -0.38748211
9 mit -0.5756816 -1.57236266 -2.10877585 1.33090031
10 das -0.9001577 -0.02004211 1.45430076 0.93866318
...
and would like to use wordVectors operations. I see that there is a as.VectorSpaceModel(matrix) coercion function, but I don't know the form of the matrix that is required for the coercion to work.