def getCrowdSizeDistributionPlot(): 
     plotMethods([Plot(**experts_twitter_stream_settings).crowdSizeDistribution, Plot(**houston_twitter_stream_settings).crowdSizeDistribution])
 def getCrowdSizeToLifeSpanPlot(): 
     plotMethods([Plot(**experts_twitter_stream_settings).crowdSizeToLifeSpanPlot, Plot(**houston_twitter_stream_settings).crowdSizeToLifeSpanPlot])
 def getLifeSpanDistributionPlot(): 
     plotMethods([Plot(**experts_twitter_stream_settings).lifeSpanDistribution, Plot(**houston_twitter_stream_settings).lifeSpanDistribution])