Correlations for all pairs of data series (method=kendall)
	logins	compendium_views_info	compendium_views_pr	shared_compendiums	blogged_computations	compendiums_reviewed	feedback_messages_p1
logins	1	0.614	0.379	0.208	0.523	0.453	0.449
compendium_views_info	0.614	1	0.421	0.248	0.604	0.502	0.494
compendium_views_pr	0.379	0.421	1	0.094	0.289	0.282	0.268
shared_compendiums	0.208	0.248	0.094	1	0.207	0.262	0.254
blogged_computations	0.523	0.604	0.289	0.207	1	0.574	0.573
compendiums_reviewed	0.453	0.502	0.282	0.262	0.574	1	0.939
feedback_messages_p1	0.449	0.494	0.268	0.254	0.573	0.939	1

Correlations for all pairs of data series with p-values
pair	Pearson r	Spearman rho	Kendall tau
logins;compendium_views_info	0.6919	0.8018	0.6142
p-value	(0)	(0)	(0)
logins;compendium_views_pr	0.3882	0.5226	0.3788
p-value	(0)	(0)	(0)
logins;shared_compendiums	0.2505	0.2795	0.2078
p-value	(0)	(0)	(0)
logins;blogged_computations	0.5661	0.7178	0.523
p-value	(0)	(0)	(0)
logins;compendiums_reviewed	0.5488	0.6284	0.4525
p-value	(0)	(0)	(0)
logins;feedback_messages_p1	0.5526	0.6288	0.4486
p-value	(0)	(0)	(0)
compendium_views_info;compendium_views_pr	0.5186	0.5849	0.4206
p-value	(0)	(0)	(0)
compendium_views_info;shared_compendiums	0.2821	0.3355	0.2476
p-value	(0)	(0)	(0)
compendium_views_info;blogged_computations	0.7489	0.8051	0.6045
p-value	(0)	(0)	(0)
compendium_views_info;compendiums_reviewed	0.6377	0.6987	0.5025
p-value	(0)	(0)	(0)
compendium_views_info;feedback_messages_p1	0.6325	0.693	0.4942
p-value	(0)	(0)	(0)
compendium_views_pr;shared_compendiums	0.0639	0.1263	0.094
p-value	(0.2787)	(0.0319)	(0.0308)
compendium_views_pr;blogged_computations	0.2289	0.4173	0.2892
p-value	(1e-04)	(0)	(0)
compendium_views_pr;compendiums_reviewed	0.2633	0.3939	0.2823
p-value	(0)	(0)	(0)
compendium_views_pr;feedback_messages_p1	0.2547	0.3802	0.2682
p-value	(0)	(0)	(0)
shared_compendiums;blogged_computations	0.238	0.2759	0.2074
p-value	(0)	(0)	(0)
shared_compendiums;compendiums_reviewed	0.3895	0.3511	0.2616
p-value	(0)	(0)	(0)
shared_compendiums;feedback_messages_p1	0.393	0.3414	0.2537
p-value	(0)	(0)	(0)
blogged_computations;compendiums_reviewed	0.7623	0.7722	0.574
p-value	(0)	(0)	(0)
blogged_computations;feedback_messages_p1	0.7676	0.7767	0.573
p-value	(0)	(0)	(0)
compendiums_reviewed;feedback_messages_p1	0.984	0.9811	0.9389
p-value	(0)	(0)	(0)