318 search results for "boxplot"

Seasonal pair trading

January 10, 2011
By
Seasonal pair trading

quanttrader.info is a good quantitative repository, where I found an idea about seasonal spreads play. The idea of seasonal pair trading differs from pairs trading in a way, that it doesn’t try to find deviation from the spread’s mean, but it looks at seasonal spread patterns. In some cases it is easier to find an

Read more »

Using R for Introductory Statistics, Chapter 4, Model Formulae

January 10, 2011
By
Using R for Introductory Statistics, Chapter 4, Model Formulae

Several R functions take model formulae as parameters. Model formulae are symbolic expressions. They define a relationship between variables rather than an arithmetic expression to be evaluated immediately. Model formulae are defined with the tilde ope...

Read more »

Using R for Introductory Statistics, Chapter 4, Model Formulae

January 10, 2011
By
Using R for Introductory Statistics, Chapter 4, Model Formulae

Several R functions take model formulae as parameters. Model formulae are symbolic expressions. They define a relationship between variables rather than an arithmetic expression to be evaluated immediately. Model formulae are defined with the tilde ope...

Read more »

web content anlayzer

January 6, 2011
By
web content anlayzer

Just developed a small crawler to check my online content at binfalse.de in terms of W3C validity and the availability of external links. Here is the code and some statistics...

Read more »

Review: Statistical Analysis with R: Beginner’s Guide by John M. Quick

January 1, 2011
By
Review: Statistical Analysis with R: Beginner’s Guide by John M. Quick

Summary: If you can get past the strange underlying story, then this gives a good introduction to R to someone with no programming experience. However, if you have any experience with other programming languages then another book is likely to be more suitable. Reference: Quick, J. M., Statistical Analysis in R: Beginners Guide, Packt Publishing,

Read more »

Tennis and risk management

December 16, 2010
By
Tennis and risk management

As mentioned already here, while we were going to Québec City for the workshop, we had interesting discussions in the car, and Maciej mentioned an article recently published in The Actuary, Hence, I wanted to discuss (extremely) rare event probabi...

Read more »

Using R for Introductory Statistics, Chapter 4

December 12, 2010
By
Using R for Introductory Statistics, Chapter 4

Chapter 4 of Using R for Introductory Statistics gets us started working with multivariate data. The question is: what are the relationships among the variables? One way to go about answering it is by pairwise comparison of variables. Another techniq...

Read more »

Using R for Introductory Statistics, Chapter 4

December 12, 2010
By
Using R for Introductory Statistics, Chapter 4

Chapter 4 of Using R for Introductory Statistics gets us started working with multivariate data. The question is: what are the relationships among the variables? One way to go about answering it is by pairwise comparison of variables. Another technique is to divide the data into categories by the values of some variables and...

Read more »

R: Using RColorBrewer to colour your figures in R

December 8, 2010
By
R: Using RColorBrewer to colour your figures in R

RColorBrewer is an R packages that uses the work from http://colorbrewer2.org/ to help you choose sensible colour schemes for figures in R. For example if you are making a boxplot with eight boxes, what colours would you use, or if you are drawing...

Read more »

R: Using RColorBrewer to colour your figures in R

December 8, 2010
By
R: Using RColorBrewer to colour your figures in R

RColorBrewer is an R packages that uses the work from http://colorbrewer2.org/ to help you choose sensible colour schemes for figures in R. For example if you are making a boxplot with eight boxes, what colours would you use, or if you are drawing...

Read more »