ttnphns

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9,000 reputation

11027

bio	website	rivita.ru/spssmacros_en.shtml
	location	Moscow, Russia
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visits	member for	2 years, 3 months
	seen	1 hour ago
stats	profile views	899

A SPSS user/developer, data analyst.

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209 Answers

votes activity newest

27	Why does the correlation coefficient between X and X-Y random variables tend to be 0.7
26	What's the difference between principal components analysis and multidimensional scaling?
19	How does centering the data get rid of the intercept?
18	What is the role of MDS in modern statistics?
16	Is there an intuitive interpretation of $A^TA$?

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9,000 Reputation

+20	How to compare two or more correlation matrices?
+10	Rank data from 1 to N (N may not be equal to number of elements in the dataset)
+10	In a mixed two-way ANOVA, why does a Groups x Intervals interaction decompose under SSwithin and not SSbetween?
+10	What is the difference between R functions prcomp and princomp?

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7 Questions

votes activity newest

8	Can we compare correlations between groups by comparing regression slopes?
6	Mean and Median properties
4	Can sub-optimality of various hierarchical clustering methods be assessed or ranked?
3	Link between variance and pairwise distances within a variable
3	Plotting a discriminant as line on scatterplot

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179 Tags

166 pca × 34	57 r × 16
97 clustering × 38	54 factor-analysis × 18
95 spss × 32	46 multidimensional-scaling × 3
82 correlation × 19	43 matrix × 5
80 regression × 20	40 anova × 16

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2 Accounts

	Cross Validated	9,000 rep	11027
	Stack Overflow	123 rep	5

25 Badges

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Quorum	Civic Duty
Good Answer × 2	Nice Answer × 10
Excavator	Strunk & White
Self-Learner	Yearling × 2
Necromancer	Popular Question × 2

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390 Votes Cast

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