Blog Archives

A bit about linear models

June 26, 2009
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Before we delve into slightly more advanced plotting commands I want to talk a little about linear models, specifically, linear regression. In R this is very, very simple. For instance, in our 'states' data frame, we might want to look at median household income as a predictor of state education expenditures. The command lm calculates this for us. We'll...

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Reading data, and a graph

June 25, 2009
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Reading data, and a graph

Using Microsoft Excel I'm collecting aggregate data, by state, of various social, political, and economic indicators. I export them into a tab-delimited file called 'states.txt' (pretty clever, I know.) I've got data on education expenditures, firearm deaths per capita, median household income, etc. I'd like to do some analysis and graphing of these data to see if there are...

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Reading data, and a graph

June 25, 2009
By
Reading data, and a graph

Using Microsoft Excel I'm collecting aggregate data, by state, of various social, political, and economic indicators. I export them into a tab-delimited file called 'states.txt' (pretty clever, I know.) I've got data on education expenditures, firearm deaths per capita, median household income, etc. I'd like to do some analysis and graphing of these data to see if there are...

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A start

June 24, 2009
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I've decided that this summer I will finally break down and force myself to learn a little bit about using R. I currently use Stata, a very good program, but the idea of R is appealing since it's free under the GNU license. It has a large and active us...

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A start

June 24, 2009
By

I've decided that this summer I will finally break down and force myself to learn a little bit about using R. I currently use Stata, a very good program, but the idea of R is appealing since it's free under the GNU license. It has a large and active us...

Read more »