335 search results for "boxplot"

Bay Area Real Estate (cont.)

Bay Area Real Estate (cont.)

Previously, I posted a short post about recent detached single house prices in San Leandro and Hayward areas.  I received a little more data (sales data from the past month), so I thought it would be a good time for … Continue reading →

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Long Memory and the Nile: Herodotus, Hurst and H

September 4, 2014
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Long Memory and the Nile: Herodotus, Hurst and H

by Joseph Rickert The ancient Egyptians were a people with long memories. The lists of their pharaohs went back thousands of years, and we still have the names and tax assessments for certain persons and institutions from the time of Ramesses II. When Herodotus began writing about Egypt and the Nile (~ 450 BC), the Egyptians who knew that...

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The Limit of ATR Order Sizing

September 2, 2014
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The Limit of ATR Order Sizing

Before beginning this post, I’d like to notify readers that I have a webcast tomorrow (Wednesday, Sep. 3) at 4:30 … Continue reading →

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Hayward/San Leandro Housing Prices

Hayward/San Leandro Housing Prices

I’ve done a previous post about the salaries of data scientists, but now I’m going to look at one of the negative sides of all the high salaries generated by the tech field in the Bay Area – real estate prices. A … Continue reading →

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San Leandro and Hayward Housing Prices

San Leandro and Hayward Housing Prices

I’ve done a previous post about the salaries of data scientists, but now I’m going to look at one of the negative sides of all the high salaries generated by the tech field in the Bay Area – real estate prices. A … Continue reading →

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Review of “Building interactive graphs with ggplot2 and shiny”

August 4, 2014
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Recently, Packt published a video course with the above title, and I've just spent a pleasant morning reviewing it on Packt's request. Pleasant, because I think the course gives an excellent introduction to both ggplot2 and shiny. The course is … Continue reading →

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UPDATE: 100 Prisoners, 100 lines of code, a game theory example in R

August 1, 2014
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UPDATE: 100 Prisoners, 100 lines of code, a  game theory example in R

I  was looking for some Game-Theory post in R-bloggers and found this very cool post,  obviously I decided to read the post, to look at the code and implement a version of it.The idea of the post was very cool for me that I thought it would b...

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Agent Based Models and RNetLogo

July 24, 2014
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Agent Based Models and RNetLogo

by Joseph Rickert If I had to pick just one application to be the “killer app” for the digital computer I would probably choose Agent Based Modeling (ABM). Imagine creating a world populated with hundreds, or even thousands of agents, interacting with each other and with the environment according to their own simple rules. What kinds of patterns and...

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stone flakes IV

June 29, 2014
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stone flakes IV

In this post I want to try something new, a causal graphical model. The aim here is just as much to get myself a feel what these things do as to understand how the stone flakes data fit together. DataData are stone flakes data which I analyzed previous...

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PCA and K-means Clustering of Delta Aircraft

June 22, 2014
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PCA and K-means Clustering of Delta Aircraft

nIntroductionnI work in consulting. If you're a consultant at a certain type of company, agency, organization, consultancy, whatever, this can sometimes mean travelling a lot.nnMany business travellers 'in the know' have heard the old joke that if you want to stay at any type of hotel anywhere in the world and get a great rate, all you have to...

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