New requirement: must use Harvard VPN to access the RCE

April 18, 2019

We're changing the way RCE users connect to the RCE. Following the changeover in late May, you'll need to connect to Harvard's VPN in order to use the RCE, whether you are connecting via NoMachine (NX), or SFTP or SSH. In order to connect to VPN, you'll need to claim your HarvardKey and set up two-factor authentication (the DUO app is recommended, but you can also use SMS or a phone call for authentication).

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Stata 15 Advisory UPDATE: xtreg, fe may not be doing what you expect

March 2, 2018

RECOMMENDATION TO RESEARCHERS: DO NOT use the example formula in the Stata manual shown for computing the grand mean with -xtreg, fe- . For a correct formula, see the link below.

Several days ago, one of our IQSS Data Scientists tried to replicate results from -xtreg, fe- by re-implementing the command using the formula shown in Stata 15's manual entry for -xtreg, fe-. It failed:...

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Important Anaconda Python Announcement

August 3, 2017
  • Anaconda Python 2.7 and 3.6 are the new Python platforms.
  • The old version of Python 2.7 will be handled by Anaconda.
  • Python 3.3 will be deprecated at the end of August.
  • We no longer are updating modules for the old versions of Python.

The benefit of using the Anaconda environment is that it is built with data science in mind: popular Python modules are already included in the environment, module versions are maintained by Anaconda for compatibility, and researchers can install additional modules to their...

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Retiring HMDC People Pages web hosting service

February 17, 2017

HMDC will be retiring its web hosting service at at the end of March 2017.
No files will be deleted, but the web service will no longer be running.
All support for this service will end by end of day, Wednesday, March 29.
Going forward, there are several options if you’d like to continue to host your content.
If you want to create a new “people” page, such as a bio, resume, or CV,...

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Stata-MP 14 CPU increase

November 3, 2016

We've recently updated our Stata licenses so that Stata-MP 14 can accomodate more than 4 CPUs at a time. Although the theoretical maximum is now 64, cluster availability will usually allow much less.

Please note, Stata 13 is still limited to 4 CPUs, and Stata-SE is still limited to 1 CPU.

Default Path Change

August 12, 2016

The default PATH for command-line RCE Shell will no longer include the current directory by default. This change ensures that only applications in known, trusted locations are executed. You can launch a command from the current directory instead by prefixing it with ./ (dot slash), for example "./configure" .