In many cases, they can be replaced by the curly braces syntax.
Otherwise, we can now use the pair() and tuple() constructors, without the need
to specify template parameters, thanks to class template argument
deduction (new in C++17).
Previously, for testing whether two diff() expressions or two unary ops were
the lead/lag of each other, the preprocessor would test whether they have the
same static representation. This is ok for simple expressions (e.g.
diff(x(-1))), but not for more complex ones (e.g. diff(x-y) and diff(x(-1)-y)
should not be given the same auxiliary variable).
This commit fixes this by properly constructing the equivalence relationship
and choosing a representative within each equivalence class. See the comments
above lag_equivalence_table_t in ExprNode.hh for more details.
Closes#27
Note that this option does not modify the global options_.order, for
consistency with the semantics of the identification command.
The preprocessor will compute dynamic derivatives up to at least order+1.
Closes#10
New options "mexext" and "matlabroot" are introduced, so that the preprocessor
knows where to find MATLAB and which architecture to compile for.
Only recent gcc is now supported. A set of optimization flags is used so that
compilation goes reasonably fast on large models.
Consequently, options "msvc", "mingw" and "cygwin" have been removed.
For correlations, there is one extra columns (since there are two symbol
indices). MATLAB automatically adds the missing column, while Octave is
stricter when verifying dimensions.
By the way, add a missing comma.
... when an initial value is given to a parameter that is not
estimated.
The generated driver file was crashing with cryptic error message
because we were searching in the first (and second) column of a
potentially empty array with 0 columns. The fix is to initialize the
fields of estimated_params_ with empty arrays with 10 columns (ie
zeros(0, 10)). Also print a message in the matlab command window if
parameter declared in estimated_params_init is not estimated.
In particular, it is necessary to turn back DataTree::AddVariable() into a
non-virtual method, because it is called from DataTree's constructor. Enforcing
the absence of leads/lags is now done using a new boolean DataTree::is_static.
Take advantage of the new copy constructor for handling
PlannerObjectiveStatement more elegantly.
Unfortunately it is not possible to implement *move* constructor / assigment
operators, because the reference ExprNode::datatree is not mutable.
Dóra Kocsis
Sébastien Villemot
Houtan Bastani
Stéphane Adjemia (Scylla)
Ferhat Mihoubi