Merge remote-tracking branch 'houtanb/master'
commit
d05d1f878b
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@ -1244,6 +1244,14 @@ Base 10 logarithm.
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Square root.
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@end defun
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@defun abs (@var{x})
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Absolute value.
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@end defun
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@defun sign (@var{x})
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Signum function.
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@end defun
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@defun sin (@var{x})
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@defunx cos (@var{x})
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@defunx tan (@var{x})
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@ -130,15 +130,15 @@ tdf = 3; % degrees of freedom for t-dist for initial draw of the MC loo
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nbuffer = 1000; % a block or buffer of draws (buffer) that is saved to the disk (not memory)
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ndraws1=1*nbuffer; % 1st part of Monte Carlo draws
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ndraws2=10*ndraws1; % 2nd part of Monte Carlo draws
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seednumber = options_.DynareRandomStreams.seed; %7910; %472534; % if 0, random state at each clock time
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% good one 420 for [29 45], [29 54]
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if seednumber
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randn('state',seednumber);
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rand('state',seednumber);
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else
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randn('state',fix(100*sum(clock)));
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rand('state',fix(100*sum(clock)));
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end
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% seednumber = options_.DynareRandomStreams.seed; %7910; %472534; % if 0, random state at each clock time
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% % good one 420 for [29 45], [29 54]
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% if seednumber
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% randn('state',seednumber);
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% rand('state',seednumber);
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% else
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% randn('state',fix(100*sum(clock)));
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% rand('state',fix(100*sum(clock)));
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% end
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% nstarts=1 % number of starting points
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% imndraws = nstarts*ndraws2; % total draws for impulse responses or forecasts
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%<<<<<<<<<<<<<<<<<<<
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@ -188,6 +188,8 @@ enum UnaryOpcode
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oAsinh,
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oAtanh,
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oSqrt,
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oAbs,
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oSign,
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oSteadyState,
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oSteadyStateParamDeriv, // for the derivative of the STEADY_STATE operator w.r.t. to a parameter
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oSteadyStateParam2ndDeriv, // for the 2nd derivative of the STEADY_STATE operator w.r.t. to a parameter
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@ -401,6 +401,28 @@ DataTree::AddSqrt(expr_t iArg1)
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return Zero;
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}
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expr_t
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DataTree::AddAbs(expr_t iArg1)
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{
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if (iArg1 == Zero)
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return Zero;
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if (iArg1 == One)
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return One;
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else
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return AddUnaryOp(oAbs, iArg1);
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}
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expr_t
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DataTree::AddSign(expr_t iArg1)
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{
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if (iArg1 == Zero)
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return Zero;
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if (iArg1 == One)
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return One;
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else
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return AddUnaryOp(oSign, iArg1);
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}
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expr_t
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DataTree::AddErf(expr_t iArg1)
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{
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@ -176,6 +176,10 @@ public:
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expr_t AddAtanh(expr_t iArg1);
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//! Adds "sqrt(arg)" to model tree
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expr_t AddSqrt(expr_t iArg1);
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//! Adds "abs(arg)" to model tree
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expr_t AddAbs(expr_t iArg1);
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//! Adds "sign(arg)" to model tree
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expr_t AddSign(expr_t iArg1);
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//! Adds "erf(arg)" to model tree
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expr_t AddErf(expr_t iArg1);
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//! Adds "max(arg1,arg2)" to model tree
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@ -108,7 +108,7 @@ class ParsingDriver;
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%token LABELS LAPLACE LIK_ALGO LIK_INIT LINEAR LOAD_IDENT_FILES LOAD_MH_FILE LOAD_PARAMS_AND_STEADY_STATE LOGLINEAR
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%token MARKOWITZ MARGINAL_DENSITY MAX
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%token MFS MH_DROP MH_INIT_SCALE MH_JSCALE MH_MODE MH_NBLOCKS MH_REPLIC MH_RECOVER MIN MINIMAL_SOLVING_PERIODS
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%token MODE_CHECK MODE_COMPUTE MODE_FILE MODEL MODEL_COMPARISON MODEL_INFO MSHOCKS
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%token MODE_CHECK MODE_COMPUTE MODE_FILE MODEL MODEL_COMPARISON MODEL_INFO MSHOCKS ABS SIGN
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%token MODIFIEDHARMONICMEAN MOMENTS_VARENDO DIFFUSE_FILTER
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%token <string_val> NAME
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%token NAN_CONSTANT NO_STATIC NOBS NOCONSTANT NOCORR NODIAGNOSTIC NOFUNCTIONS
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@ -459,6 +459,10 @@ expression : '(' expression ')'
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{ $$ = driver.add_atan($3); }
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| SQRT '(' expression ')'
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{ $$ = driver.add_sqrt($3); }
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| ABS '(' expression ')'
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{ $$ = driver.add_abs($3); }
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| SIGN '(' expression ')'
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{ $$ = driver.add_sign($3); }
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| MAX '(' expression COMMA expression ')'
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{ $$ = driver.add_max($3, $5); }
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| MIN '(' expression COMMA expression ')'
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@ -613,6 +617,10 @@ hand_side : '(' hand_side ')'
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{ $$ = driver.add_atan($3); }
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| SQRT '(' hand_side ')'
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{ $$ = driver.add_sqrt($3); }
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| ABS '(' hand_side ')'
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{ $$ = driver.add_abs($3); }
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| SIGN '(' hand_side ')'
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{ $$ = driver.add_sign($3); }
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| MAX '(' hand_side COMMA hand_side ')'
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{ $$ = driver.add_max($3, $5); }
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| MIN '(' hand_side COMMA hand_side ')'
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@ -511,6 +511,8 @@ string eofbuff;
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<DYNARE_STATEMENT,DYNARE_BLOCK>sqrt {return token::SQRT;}
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<DYNARE_STATEMENT,DYNARE_BLOCK>max {return token::MAX;}
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<DYNARE_STATEMENT,DYNARE_BLOCK>min {return token::MIN;}
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<DYNARE_STATEMENT,DYNARE_BLOCK>abs {return token::ABS;}
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<DYNARE_STATEMENT,DYNARE_BLOCK>sign {return token::SIGN;}
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<DYNARE_STATEMENT,DYNARE_BLOCK>normcdf {return token::NORMCDF;}
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<DYNARE_STATEMENT,DYNARE_BLOCK>normpdf {return token::NORMPDF;}
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<DYNARE_STATEMENT,DYNARE_BLOCK>erf {return token::ERF;}
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@ -1323,6 +1323,11 @@ UnaryOpNode::composeDerivatives(expr_t darg, int deriv_id)
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case oSqrt:
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t11 = datatree.AddPlus(this, this);
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return datatree.AddDivide(darg, t11);
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case oAbs:
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t11 = datatree.AddSign(arg);
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return datatree.AddTimes(t11, darg);
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case oSign:
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return datatree.Zero;
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case oSteadyState:
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if (datatree.isDynamic())
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{
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@ -1406,6 +1411,7 @@ UnaryOpNode::cost(const temporary_terms_t &temporary_terms, bool is_matlab) cons
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switch (op_code)
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{
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case oUminus:
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case oSign:
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return cost + 70;
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case oExp:
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return cost + 160;
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@ -1437,6 +1443,7 @@ UnaryOpNode::cost(const temporary_terms_t &temporary_terms, bool is_matlab) cons
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case oAtanh:
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return cost + 350;
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case oSqrt:
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case oAbs:
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return cost + 570;
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case oSteadyState:
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case oSteadyStateParamDeriv:
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@ -1449,6 +1456,7 @@ UnaryOpNode::cost(const temporary_terms_t &temporary_terms, bool is_matlab) cons
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switch (op_code)
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{
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case oUminus:
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case oSign:
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return cost + 3;
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case oExp:
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case oAcosh:
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@ -1477,6 +1485,7 @@ UnaryOpNode::cost(const temporary_terms_t &temporary_terms, bool is_matlab) cons
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case oAtanh:
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return cost + 150;
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case oSqrt:
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case oAbs:
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return cost + 90;
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case oSteadyState:
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case oSteadyStateParamDeriv:
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@ -1622,6 +1631,15 @@ UnaryOpNode::writeOutput(ostream &output, ExprNodeOutputType output_type,
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case oSqrt:
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output << "sqrt";
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break;
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case oAbs:
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output << "abs";
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break;
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case oSign:
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if (output_type == oCDynamicModel)
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output << "copysign";
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else
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output << "sign";
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break;
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case oSteadyState:
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ExprNodeOutputType new_output_type;
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switch (output_type)
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@ -1692,6 +1710,8 @@ UnaryOpNode::writeOutput(ostream &output, ExprNodeOutputType output_type,
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&& arg->precedence(output_type, temporary_terms) < precedence(output_type, temporary_terms)))
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{
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output << LEFT_PAR(output_type);
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if (op_code == oSign && output_type == oCDynamicModel)
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output << "1.0,";
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close_parenthesis = true;
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}
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@ -1763,6 +1783,10 @@ UnaryOpNode::eval_opcode(UnaryOpcode op_code, double v) throw (EvalException, Ev
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return (atanh(v));
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case oSqrt:
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return (sqrt(v));
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case oAbs:
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return (abs(v));
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case oSign:
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return (v > 0) ? 1 : ((v < 0) ? -1 : 0);
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case oSteadyState:
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return (v);
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case oSteadyStateParamDeriv:
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@ -1901,6 +1925,10 @@ UnaryOpNode::normalizeEquation(int var_endo, vector<pair<int, pair<expr_t, expr_
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return (make_pair(0, datatree.AddAtanh(New_expr_t)));
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case oSqrt:
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return (make_pair(0, datatree.AddSqrt(New_expr_t)));
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case oAbs:
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return (make_pair(0, datatree.AddAbs(New_expr_t)));
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case oSign:
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return (make_pair(0, datatree.AddSign(New_expr_t)));
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case oSteadyState:
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return (make_pair(0, datatree.AddSteadyState(New_expr_t)));
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case oErf:
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@ -1960,6 +1988,10 @@ UnaryOpNode::buildSimilarUnaryOpNode(expr_t alt_arg, DataTree &alt_datatree) con
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return alt_datatree.AddAtanh(alt_arg);
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case oSqrt:
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return alt_datatree.AddSqrt(alt_arg);
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case oAbs:
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return alt_datatree.AddAbs(alt_arg);
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case oSign:
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return alt_datatree.AddSign(alt_arg);
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case oSteadyState:
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return alt_datatree.AddSteadyState(alt_arg);
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case oSteadyStateParamDeriv:
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@ -1746,6 +1746,18 @@ ParsingDriver::add_sqrt(expr_t arg1)
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return data_tree->AddSqrt(arg1);
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}
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expr_t
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ParsingDriver::add_abs(expr_t arg1)
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{
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return data_tree->AddAbs(arg1);
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}
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expr_t
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ParsingDriver::add_sign(expr_t arg1)
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{
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return data_tree->AddSign(arg1);
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}
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expr_t
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ParsingDriver::add_max(expr_t arg1, expr_t arg2)
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{
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@ -485,6 +485,10 @@ public:
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expr_t add_atanh(expr_t arg1);
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//! Writes token "sqrt(arg1)" to model tree
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expr_t add_sqrt(expr_t arg1);
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//! Writes token "abs(arg1)" to model tree
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expr_t add_abs(expr_t arg1);
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//! Writes token "sign(arg1)" to model tree
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expr_t add_sign(expr_t arg1);
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//! Writes token "max(arg1,arg2)" to model tree
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expr_t add_max(expr_t arg1, expr_t arg2);
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//! Writes token "min(arg1,arg2)" to model tree
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@ -8,6 +8,7 @@ MODFILES = \
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example1_use_dll.mod \
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example1_with_tags.mod \
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example1_irf_shocks.mod \
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example1_abs_sign_dynamic.mod \
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t_sgu_ex1.mod \
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osr_example.mod \
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optimal_policy/ramsey.mod \
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@ -0,0 +1,44 @@
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// Example 1 from Collard's guide to Dynare
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var y, c, k, a, h, b;
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varexo e, u;
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parameters beta, rho, alpha, delta, theta, psi, tau;
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alpha = 0.36;
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rho = 0.95;
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tau = 0.025;
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beta = 0.99;
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delta = 0.025;
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psi = 0;
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theta = 2.95;
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phi = 0.1;
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model(use_dll);
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c*theta*h^(1+psi)=abs((1-alpha)*y);
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k = beta*(((exp(b)*c)/(exp(b(+1))*c(+1)))
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*(exp(b(+1))*alpha*y(+1)+(1-delta)*k));
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y = exp(a)*(k(-1)^alpha)*(h^(1-alpha));
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k = exp(b)*(y-c)+(1-delta)*k(-1)*sign(k*k);
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a = rho*a(-1)+tau*b(-1) + e;
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b = tau*a(-1)+rho*b(-1) + u;
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end;
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initval;
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y = 1.08068253095672;
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c = 0.80359242014163;
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h = 0.29175631001732;
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k = 11.08360443260358;
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a = 0;
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b = 0;
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e = 0;
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u = 0;
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end;
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shocks;
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var e; stderr 0.009;
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var u; stderr 0.009;
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var e, u = phi*0.009*0.009;
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end;
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stoch_simul;
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