how not to display everything

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dav
dav 2014-6-3
编辑： dav 2014-6-3
Hi,
Every time I run the following code it displays lot of extra ouputs. I just need it to display the Aic values at the end.
Can someone please help me ?
much Thanks.
Code:
clc;
clear;
T = 300;
a0 = 0.1; a1 = 0.4; a2 = 0.0; b1 = 0.2; b2= 0.0; % garch parameters
epsi = randn(T+2000,1);
ut = zeros(T+2000,1); % garch data
sig2 = zeros(T+2000,1); % sigma squared in garch model
unvar = a0/(1-a1-a2-b1-b2); % unvar is the unconditional variance.. initial condition
for i = 1:T+2000
if i==1
sig2(i) = a0 + a1*unvar + a2*unvar + b1*unvar + b2*unvar;
sig =(sig2(i))^0.5;
ut(i) = epsi(i) * sig;
elseif i==2
sig2(i) = a0 + a1*(ut(1))^2 + a2*unvar + b1*sig2(1)+ b2*unvar;
sig =(sig2(i))^0.5;
ut(i) = epsi(i) * sig;
else
sig2(i) = a0 + a1*(ut(i-1))^2 + a2*(ut(i-2))^2 + b1*(sig2(i-1)) + b2*(sig2(i-2));
sig=(sig2(i))^0.5;
ut(i) = epsi(i) * sig;
end
end
utl = ut(2001:T+2000);
Mdl1 = garch('Offset',NaN,'GARCHLags',1,'ARCHLags',1);
[EstMdl1,EstParamCov1,logL(1)] = estimate(Mdl1,utl);
numParams(1) = sum(any(EstParamCov1));
Mdl2 = garch(5,5);
[EstMdl1,EstParamCov2,logL(2)] = estimate(Mdl2,utl);
numParams(2) = sum(any(EstParamCov2));
numObsv = length(utl);
[AIC1] = aicbic(logL(1), numParams(1))
[AIC2] = aicbic(logL(2), numParams(2))

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回答（1 个）

Image Analyst
Image Analyst 2014-6-3
Here, study this function to see how I turn off warnings. The instructions for other warnings that you may encounter that are not turned off by my function are in the comments.
% Suppress warnings.
function TurnOffWarnings()
try
% To set the warning state, you must first know the message identifier for the one warning you want to enable.
% Query the last warning to acquire the identifier. For example:
% warnStruct = warning('query', 'last')
% messageID = warnStruct.identifier
% messageID =
% MATLAB:concatenation:integerInteraction
% Turn off this warning "Warning: Image is too big to fit on screen; displaying at 33% "
warning('off', 'Images:initSize:adjustingMag');
% Get rid of warning about roipolyold being deprecated:
% "Warning: Function ROIPOLYOLD will be removed in the future. Use ROIPOLY instead"
warning('off', 'images:removing:function');
% Get rid of warning about directory already existing:
% "Warning: Directory already exists."
warning('off', 'MATLAB:MKDIR:DirectoryExists');
% Turn off note "Warning: Added specified worksheet." that appears in the command window.
warning('off', 'MATLAB:xlswrite:AddSheet');
catch ME
errorMessage = sprintf('Error in function %s() at line %d.\nDo you have the file already open in Excel?\nPlease check that the file is not open anywhere.\n\nError Message:\n%s', ...
ME.stack(1).name, ME.stack(1).line, ME.message);
fprintf(1, '%s\n', errorMessage);
WarnUser(errorMessage);
end
return; % from TurnOffWarnings
  1 个评论
dav
dav 2014-6-3
Thanks I could prevent warnings from being displayed by using warning off command.
However, my biggest problem is preventing the following part from displaying.
Part that i want not to be displayed:
GARCH(1,1) Conditional Variance Model:
----------------------------------------
Conditional Probability Distribution: Gaussian
Standard t
Parameter Value Error Statistic
----------- ----------- ------------ -----------
Constant 0.102512 0.0240847 4.25631
GARCH{1} 0.134145 0.114463 1.17195
ARCH{1} 0.54348 0.124725 4.35742
Offset 0.0115701 0.0240859 0.480369
GARCH(0,3) Conditional Variance Model:
----------------------------------------
Conditional Probability Distribution: Gaussian
Standard t
Parameter Value Error Statistic
----------- ----------- ------------ -----------
Constant 0.121201 12.4444 0.00973944
ARCH{1} 0.547057 0.127185 4.30126
ARCH{2} 0.0434632 99.4938 0.000436843
ARCH{3} 0.020107 79.1013 0.000254193

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