Gojiberries (Page 35)

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help(R): matrix indexing

In R, some want to treat matrix like a data frame. It is a bad idea. And no – one cannot use the dollar sign to pick out a column of a matrix. The underlying data structure for a matrix in R is a vector, whereas data.frame object in R

GSS and ANES: Alike Yet Different

The General Social Survey (GSS), run out of National Opinion Research Center at University of Chicago, and American National Election Studies (ANES), which until recently ran out of University of Michigan’s Institute for Social Research, are two preeminent surveys tracking over-time trends in social and political attitudes, beliefs and

Another Coding Issue in the ANES Cumulative File

Technology has made it easy to analyze data. However, we have paid inadequate attention to developing automation in data analysis software that pays more attention to potential problems with the data itself. For example, I was recently exploring how interviewer rated political knowledge varied by respondent’s level of education

Delay Shooting the Help

Procrastination or delaying without reason, doing something that one has to do, makes little sense. If the voluntary delay also causes anxiety, which in most cases it does, it may be particularly pointless. Yet, a lot of people procrastinate at least some of the time. Why? One can make a

Structural Inequality

Nick Clegg, leader of the Liberal Democrats, recently spoke about social mobility. He said, My particular focus is on inter-generational social mobility – the extent to which a person’s income or social class is influenced by the income or social class of their parents. Social mobility is a measure of

On Love

Mothers spend a great deal of their time and energy on their kids, especially newborns. They spend far more time thinking and working to ensure the welfare of another human being (their kid) than most humans will spend on any other human being, say their romantic partner or sibling. Add