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Robert Ricci
Evaluating Networked Systems
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55c5b8da
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55c5b8da
authored
Feb 11, 2014
by
Robert Ricci
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Add notes about picking dispersion
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lectures/lecture10/lecturenotes.tex
lectures/lecture10/lecturenotes.tex
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lectures/lecture10/lecturenotes.tex
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55c5b8da
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@@ -44,6 +44,7 @@
\1
Mean, median, mode
\2
\textit
{
When to use each
}
\2
Categorical: mode, total: mean, skewed: median, else: mean
\1
Covariance
\2
Measure whether two random variables vary together
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@@ -70,7 +71,13 @@
\1
TODO: Means of ratios
\1
TODO: Picking index of dispersion
\1
Picking index of dispersion
\2
Range (when bounded)
\2
Var or stddev (sttdev is in the right units) --- see also CoV
\2
Percentiles - 10 and 90, or 5 and 95 (want a sense of how long
things will take in extreme case
\2
SIQR (semi interquanile range): middle 50
% / 2: very outlier-robust
\2
Mean absolute dev (use least)
\1
Quantile-quantile plots
\2
For each quartile: plot pairs of what the theoretical distribution
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