2602 search results for "gis"

Scraping table from any web page with R or CloudStat

January 15, 2012
By
Scraping table from any web page with R or CloudStat

Scraping table from any web page with R or CloudStat: You need to use the data from internet, but don’t type, you can just extract or scrape them if you know the web URL. Thanks to XML package from R. It provides amazing readHTMLtable() function. For...

Read more »

R-squared for multilevel models

January 15, 2012
By

Fred Schiff writes: I’m writing to you to ask about the “R-squared” approximation procedure you suggest in your 2004 book with Dr. Hill. I’m a media sociologist at the University of Houston. I’ve been using HLM3 for about two years. Briefly about my data. It’s a content analysis of The post R-squared...

Read more »

Are We Japanese?

January 13, 2012
By
Are We Japanese?

Most of the discussion trying to determine if the U.S. is Japan 20 years later focuses on the economy and the stock market.  However, one of the biggest and most persistent correlations between Japan and the U.S. are the Japanese Yen and the U.S. ...

Read more »

Retrieving RSS Feeds Using Google Reader

January 13, 2012
By
Retrieving RSS Feeds Using Google Reader

I have been working on a new package makeR to help manage Sweave projects where you wish to create multiple versions of documents that are based on a single source. For example, I create lots of monthly and quarterly reports using Sweave and the only differences between versions are a few variables. I have used GNU

Read more »

Functional ANOVA using INLA

January 13, 2012
By
Functional ANOVA using INLA

Ramsay and Silverman’s Functional Data Analysis is a tremendously useful book that deserves to be more widely known. It’s full of ideas of neat things one can do when part of a dataset can be viewed as a set of

Read more »

Function for phylogeny resolution

January 13, 2012
By
Function for phylogeny resolution

I couldn't find any functions to calculate number of polytomies, and related metrics. Here's a simple function that gives four metrics on a phylo tree object: Here's output from the gist above: ` dat $trsize 15 $numpolys 1 $numpolysbyt...

Read more »

Function for phylogeny resolution

January 13, 2012
By

UPDATE: Yeah, so the treeresstats function had a problem in one of the calculations. I fixed that and added some more calulcations to the function. I couldn't find any functions to calculate number of polytomies, and related metrics. Here's a simpl...

Read more »

Retrieving RSS Feeds Using Google Reader

January 13, 2012
By
Retrieving RSS Feeds Using Google Reader

I have been working on a new package makeR to help manage Sweave projects where you wish to create multiple versions of documents that are based on a single source. For example, I create lots of monthly and quarterly reports using Sweave and the only ...

Read more »

Retrieving RSS Feeds Using Google Reader

January 13, 2012
By
Retrieving RSS Feeds Using Google Reader

I have been working on a new package makeR to help manage Sweave projects where you wish to create multiple versions of documents that are based on a single source. For example, I create lots of monthly and quarterly reports using Sweave and the only ...

Read more »

Stocks When Bonds are Extreme

January 12, 2012
By
Stocks When Bonds are Extreme

In Extreme Bond Returns, I did not consider the context of extreme bond returns, so let’s examine annual returns for the Dow Jones Industrial Average when bonds experience extreme annual returns.  I was very surprised that stocks performed extre...

Read more »