138 lines
5.2 KiB
Plaintext
138 lines
5.2 KiB
Plaintext
Dynare
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━━━━━━
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For information about how to use Dynare, you should have a look at the
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documentation located in the ‘doc’ subdirectory of your Dynare installation (you
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should have a shortcut in your Start Menu to access it directly).
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Beginners should start with the tutorial (under PDF format in ‘guide.pdf’).
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There is also a complete reference manual documenting all Dynare functions
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(under HTML format in ‘dynare-manual.html\index.html’, under PDF format in
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‘dynare-manual.pdf’).
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You can also get more information on the web, on Dynare homepage:
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https://www.dynare.org
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Or on Dynare Wiki:
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https://www.dynare.org/DynareWiki
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Note: Dynare comes with an automated uninstaller, which you can run from the
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“Add/Remove Programs” menu of the Control Panel.
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Using Dynare with MATLAB®
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─────────────────────────
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Dynare requires MATLAB® version 7.9 (R2009b) or above. With older versions of
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MATLAB®, it may fail or give unexpected results.
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To use Dynare, you just have to add the ‘matlab’ subdirectory of your Dynare
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installation to MATLAB® path. You have two options for doing that:
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— Use the addpath command, by typing the following (assuming that you have
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installed Dynare at the standard location, and replacing ‘4.x.y’ by the correct
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version number):
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addpath c:\dynare\4.x.y\matlab
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MATLAB® will not remember this setting next time you run it, and you will
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have to do it again.
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— Select the “Set Path” entry in the “File” menu, then click on “Add Folder…”,
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and select the ‘matlab’ subdirectory of your Dynare installation. Note that
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you must not use “Add with Subfolders…”. Apply the settings by clicking on
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“Save”. Note that MATLAB® will remember this setting next time you run it.
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You can test your installation by typing ‘dynare’ at the MATLAB® prompt. This
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should give you an error message complaining that you did not specify a MOD
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file.
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Using Dynare with Octave
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────────────────────────
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Dynare also works on top of GNU Octave, a free clone of MATLAB® (see
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<https://www.octave.org>).
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This version of Dynare is compiled for Octave 4.4.1 (MinGW, 32bit and 64bit),
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and may not work with other versions of Octave. The recommended version of
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Octave can be downloaded at:
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https://www.gnu.org/software/octave/download.html
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Every time you run Octave, you should type the two following commands (assuming
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that you have installed Dynare at the standard location, and replacing ‘4.x.y’
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by the correct version number):
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addpath c:\dynare\4.x.y\matlab
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Note: if you don't want to type this command every time you run Octave, you can
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put it in a file called ‘.octaverc’ in your home directory (‘c:\Documents and
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Settings\USERNAME’ for Windows XP or ‘c:\Users\USERNAME’ for more recent
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versions of Windows). This file is run by Octave at every startup.
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You can test your installation by typing ‘dynare’ at the Octave prompt. This
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should give you an error message complaining that you did not specify a MOD
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file.
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Dynamic Loadable Libraries
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──────────────────────────
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For better performance, some parts of Dynare are written in the C++ language,
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which is faster than standard M-files. These parts are compiled and distributed
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as dynamic loadable libraries (DLL), located in the 'mex' subdirectory of your
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Dynare installation.
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If the DLL are correctly detected by MATLAB® or Octave, the following should
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be displayed when you launch Dynare:
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Configuring Dynare ...
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[mex] Generalized QZ.
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[mex] Sylvester equation solution.
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[mex] Kronecker products.
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[mex] Sparse kronecker products.
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[mex] Local state space iteration (second order).
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[mex] Bytecode evaluation.
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[mex] k-order perturbation solver.
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[mex] k-order solution simulation.
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[mex] Quasi Monte-Carlo sequence (Sobol).
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On the contrary, if DLL are not detected, Dynare will fallback on
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slower alternatives written in M-files (only for some of the DLLs),
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and display the following:
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Configuring Dynare ...
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[m] Generalized QZ.
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[m] Sylvester equation solution.
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[m] Kronecker products.
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[m] Sparse kronecker products.
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[m] Local state space iteration (second order).
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[no] Bytecode evaluation.
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[no] k-order perturbation solver.
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[no] k-order solution simulation.
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[no] Quasi Monte-Carlo sequence (Sobol).
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In this last case, Dynare will run correctly on the basic features,
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but with suboptimal speed, and some features will be missing. There
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could be several reasons for MATLAB® or Octave failing to detect
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the DLL:
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— Your path settings may be wrong. Make sure that the ‘matlab’ subdirectory of
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your Dynare installation is the only Dynare directory present in the path
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variable.
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— Your MATLAB® or Octave version may be incompatible with the provided
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binaries.
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— You may have a custom M-file in your search path with the same name than a
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DLL, therefore overriding it.
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Credits
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───────
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MATLAB® is a registered trademark of The Mathworks, Inc.
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