Changes between Version 9 and Version 10 of StatisticalAnalysis

Timestamp:

02/04/13 15:56:02 (11 years ago)

Author:

abeham

Comment:

--

StatisticalAnalysis

@@ -4 +4 @@
 
 The goal in those experiments is to show that one process is able to achieve a better output than another process. There are several ways to show this:
- * Boxplot charts
- * Overlaid histograms (have not yet seen anyone doing it, but could also be worth a try)
+ * Visual analysis methods
  * Statistical hypotheses tests for unequality of two means
 
@@ -20 +19 @@
   * [http://en.wikipedia.org/wiki/Friedman_test Friedman test]
   * [http://en.wikipedia.org/wiki/Kruskal%E2%80%93Wallis_one-way_analysis_of_variance Kruskal-Wallis]
+
+== Visual Analysis Methods ==
+ * In statistical analysis visual methods are often preferred. They can encode a lot more data and provide a clearer picture for expert human interpretation. Several possibilities exist, some have already been mentioned:
+
+||= Name =||= Example =||= Purpose =||
+|| Bubble charts || [[Image(http://upload.wikimedia.org/wikipedia/commons/thumb/8/83/3Variable_BubbleChart.svg/240px-3Variable_BubbleChart.svg.png)]] || Bubbles are fun! ||
+|| Density plots / histograms || [[Image(http://upload.wikimedia.org/wikipedia/commons/thumb/3/37/P_glu_given_diabetes.png/360px-P_glu_given_diabetes.png)]] || Comparing/Estimating the exact shapes of the underlying distributions ||
+|| Boxplots || [[Image(http://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Michelsonmorley-boxplot.svg/300px-Michelsonmorley-boxplot.svg.png)]] || Compact and efficient comparison of distributions ||
+|| Forest plots || [[Image(http://upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Generic_forest_plot.png/300px-Generic_forest_plot.png)]] || Comparing confidence intervals makes it probably a little more obvious if a result would be significant enough ||
+|| Q-Q plots || [[Image(http://upload.wikimedia.org/wikipedia/commons/thumb/0/08/Normal_normal_qq.svg/300px-Normal_normal_qq.svg.png)]] || Estimating whether data fits a certain distribution ||
 
 == Possible Workflow / Methodology ==