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Tell me, where did I go wrong

If you are Filipino, you are most likely singing the title by now Looking for a missing bracket, a misplaced comma, or a space that shouldn’t be there—or debugging in general—can be a pain sometimes....

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No -usespss- for Mac

In Reading SPSS data file into Stata, I describe Sergiy Radyakin’s -usespss- that loads SPSS data (.sav) into Stata. I was on Windows then. -usespss- is unfortunately not available for Mac OS....

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Put anything anywhere in Excel without sweat

putexcel has recently become a very good friend. For those who (or working with people who) find comfort in working with tables in Excel after data processing or estimation in Stata (yes, there are...

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break me

Sometimes we want to break a continuous variable into a smaller set of categories—into evenly spaced or equally sized groups, or groups based on limits we specify, or groups based on another variable...

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Where to buy Stata in the Philippines

In the Philippines, there has been an emerging demand in the public sector for data-driven analysis of various govenrment programs (yes, emerging.. don’t ask why.. but the leadership has a lot to do...

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Haiku: cls

clean results window in Stata thirteen, typing cls clears screen  

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Import data from Excel sheets

How do we import data from all sheets in a number of Excel files? Each Excel file has a different number of sheets with names of no discernible pattern, but (thankfully) each sheet has the same...

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-destring- complication: negative numbers

Less than 2 hours flight… In a Stata training, one of the students wondered why after importing an Excel file of financial indicators into Stata some were read as strings. A quick browse at the data...

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-destring- uncomplicated

In a comment to the previous post destring complication: negative numbers, Nick Cox pointed out “the most important advise” in using destring: “never destring, replace unless you are absolutely sure...

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The adventures of tin()

Using the if qualifer with time-series data is tricky. Until you meet tin(). Let us use quarterly German macro data, lutkepohl2, from Stata website to illustrate. . webuse lutkepohl2 (Quarterly SA West...

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dates in Starbucks

In yesterday’s post, one of the needed cleaning is to extract date and day of week from the string: . list date in 1/5 +--------------------------------------------+ | date |...

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UN Comtrade API in Stata

The UN Comtrade is the largest repository of disaggregated trade statistics. It offers free access to detailed annual trade data starting from 1962 and monthly trade data from 2010. Free access is...

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creative destruction: collapse and contract

Creative destruction, coined by Joseph Schumpeter in Capitalism, Socialism, and Democracy, refers to the process by which new innovations kill old inefficient products. But we are not talking about...

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#HowDoYouStata

This is a shameless plug. By now you may already know that StataCorp initiated a contest in Facebook that started a week ago and will end tomorrow, Dec 2 at 930am CST. I submitted an earlier blog post...

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Regression discontinuity design in Stata (Part 1)

There has been a growing use of regression discontinuity design (RDD), introduced by Thistlewaite and Campbell (1960), in evaluatin impacts of development programs. Lee and Lemieux (2010), Imbens and...

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