Two of the R scripts used in our publications have been published as Shiny Apps and are available for use by scientists and the public.
If you wish to analyse the TCGA data to determine which pathways are enriched for gains or losses in genes grouped by signaling pathway, you are looking for HAPTRIG. [1]
If you want a tool to visualize regions of chromosomal gain or loss in different cancers, you are looking for CAIRN. [2]
1.https://www.nature.com/articles/ncomms14423
2. https://journals.plos.org/plosgenetics/article?id=10.1371/journal.pgen.1008558