change the visualization script to cater to the syntax of new versions of R
modified: ../../data-visualization/Category_And_Scenario_Vis.R
modified: ../../data-visualization/gephi_vis.R
modified: ../../data-visualization/hub_origins_vis.R
modified: ../../data-visualization/hub_to_new_plot.R
modified: ../../data-visualization/net_diamvssize.R
modified: ../../data-visualization/net_diamvstime.R
modified: ../../data-visualization/net_sizevstime.R
modified: ../../data-visualization/netvis.R
modified: ../../data-visualization/old_new_stat_vis.R
change the visualization script to cater to the syntax of new versions of R modified: ../../data-visualization/Category_And_Scenario_Vis.R modified: ../../data-visualization/gephi_vis.R modified: ../../data-visualization/hub_origins_vis.R modified: ../../data-visualization/hub_to_new_plot.R modified: ../../data-visualization/net_diamvssize.R modified: ../../data-visualization/net_diamvstime.R modified: ../../data-visualization/net_sizevstime.R modified: ../../data-visualization/netvis.R modified: ../../data-visualization/old_new_stat_vis.R