Line Chart
– Mitigate some shortcomings of scatterplot
– Emphasize trends
– Focus on year to year variability, not overall trends
LOESS Curve
– Emphasize long term trends
– LOESS weighted regression
– Easier to take a quick look at chart and understand big picture
Multivariate
– How to incorporate more variables
– Use an additional encoding
– Size
– Color / Saturation
Basics of mapreduce
Mapreduce is parallel programming model
python dictionary
{“alice”:1, “was”:1, “of”:2,…”do”:1}
