Saturday, September 15, 2012

How life really has gotten better for researchers

The first non-thesis project I worked on as an assistant professor used the 1 in 1000 Public Use Microdata Sample of the US Census.  My recollection is that the sample had about 63,000 observations; I had to spin a tape to read data into a big iron VMS machine using SAS, and it took about 10 hours to do so.  The year was 1990.

Yesterday, I read five year ACS household data into my Macbook Pro using Stata.  It is broken into four files with about 1.5 million observations each.  Each file took about 2 minutes to read. This is really, really nice.

  

3 comments:

doc said...

First empirical work I ever did in grad school (1972), I had to type the data onto punch cards, type the program instructions (Biomed was the stat program) and give the card deck to a student working in the computer center to feed into the main-frame card reader. He dropped the deck, which taught me to number the program cards with a magic marker...

Life is so much simpler today...

Turesta istanbul said...

It can be described more roughly by the number of rooms. A studio apartment has a single bedroom with no living room (possibly a separate kitchen istanbul real estate).
A one-bedroom apartment has a living or dining room istanbul property separate from the bedroom. Two bedroom, three bedroom, and larger units are common.
(A bedroom is defined istanbul properties as a room with a closet for clothes storage.)

Turesta istanbul said...

The size of an apartment or house can be istanbul property described in square feet or meters. In the United States, this istanbul real estate includes the area of "living space",
excluding the garage and other non-living spaces. The "square meters" figure of a house in Europe istanbul properties may report the total area of the walls enclosing the home,
thus including any attached garage and non-living spaces, which makes it important to inquire what kind of surface definition has been used.