Namespace in Imports field not imported from: ‘Matrix’
  All declared Imports should be used.
Namespace in Imports field not imported from: ‘Matrix’
  All declared Imports should be used.
Running examples in ‘EmbedSOM-Ex.R’ failed
The error most likely occurred in:

> ### Name: RandomMap
> ### Title: Create a map by randomly selecting points
> ### Aliases: RandomMap
> 
> ### ** Examples
> 
> d <- iris[,1:4]
> EmbedSOM::PlotEmbed(
+   EmbedSOM::EmbedSOM(
+     data = d,
+     map = EmbedSOM::RandomMap(d, 30, EmbedSOM::GraphCoords())),
+   pch=19, clust=iris[,5]
+ )

 *** caught segfault ***
address 0x1, cause 'memory not mapped'

Traceback:
 1: EmbedSOM::EmbedSOM(data = d, map = EmbedSOM::RandomMap(d, 30,     EmbedSOM::GraphCoords()))
 2: EmbedSOM::PlotEmbed(EmbedSOM::EmbedSOM(data = d, map = EmbedSOM::RandomMap(d,     30, EmbedSOM::GraphCoords())), pch = 19, clust = iris[, 5])
An irrecoverable exception occurred. R is aborting now ...