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Odd behavior combining sprintf and fprintf?
Try fprintf(sprintf('%%%%\n')) In order to print a % with the fprintf command, you have give the function two %-characte...

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Statistics toolbox predict new data non linear regression
They estimate a non-linear model that has three independent variables (input variables) and five coefficients. Then they predict...

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Equation for non linear model
I have no idea why Matlab chose to use that equation. They don't explain. In some cases theory suggests the relationship between...

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syntax regression model variables
The variable modelfun is a function handle and it defines the nonlinear model. Perhaps you should read the Matlab documentation ...

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How to code MIDAS?
It seems that Matlab cannot not find your function. Type path in the command window and check if the folder that contai...

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Why am i getting this errors below? What does it mean?
The error means that bbox is empty. That is why you cannot acces bbox(3).

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how to get bloomberg option and zero coupon rate data?
Of course you don't get a price for an option. The field OPT_CHAIN does not request a price. It gives you a list with tickers of...

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matrix problem in vocoder
The first line says it all. You try to access the 14th column of a matrix that has only 13 columns. If the reason is a mistake i...

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Generate random variables with specified 2nd moment ?
The second moment is the same as the variance of the random numbers! >> x = randn(1,1000); >> var(x) ans = ...

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Problem with LinearModel varNames
The error message tells me that you have defined the names of the variables incorrectly. I assume that your code looks something...

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How to fit data to a second degree polynomial equation with 9 co-efficients
There is no unique solution for your equation. So you cannot estimate the coefficients. What you can do is estimating the fol...

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Econometrics Toolbox output handling
[EstMdl1,EstParamCov2,logL(2)] = estimate(Mdl2,utl, 'Display', 'off');

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Econometrics Toolbox: estimate the probability of different time series predicitions
If you know the distribution of the returns you could calculate the probability. However, the probability of a path with 30 step...

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how to declare vector of size 64
You cannot just declare a vector of a certain size without giving the elements a certain value. A = zeros(64,1); B = one...

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Overlap between N circles
Construct a grid. Calculate for each point the distances to the circle centers. All points whose distances to the circle centers...

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Why do I get the error “Dimensions of arrays being concatenated are not consistent.”?
This error is encountered when you try to vertically concatenate arrays that do not have compatible sizes. For example, to verti...

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I face the error of "Index exceeds matrix dimensions". but i want to show all the elements of z(n) and want to sum them and mean them. my program is given below, plz help me out?
In the second iteration the if-condition p{i} == [4;5] becomes true and terminates the loop. p{3} stays empty. In the second for...

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complicated for loop with 2 requirements or constraints
Then do the following: if m > 4 UT{m} = id(m-4:m-1,:) end

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How to solve the following system of equations?
Two of the three equations are non-linear. You cannot solve these with some simple matrix operations. Take a pencil and a paper ...

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How to enter an equation with a summation?
V(i,j) = sum(log(D(i,:)./D(j,:))) / (2*pi*e)

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Can some one help me in plotting the earthquake no of events per year, that is my y-axis will be no of events and x axis will be year.
Use the plot function.

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save values of variable
The variable *fittedmodel1* is a class. You cannot double-click on class variables and see what is inside. You have to use the w...

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complicated for loop with 2 requirements or constraints
In the second loop you first (when i = 0) save a matrix in result{m} and then you override it when (i = 1). So the inner loop ha...

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can I avoid for loop?
No, it is not possible to avoid the two loops.

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Legend in for loop of unknown number
First: your code is unreadable if you do not format it as code! Second: As some variables are missing I cannot run the code, ...

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How to get the output to a variable
constant = fit1.Constant; arch1 = fit1.ARCH{1}; garch1 = fit1.GARCH{1};

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text to column conversion
n = length(tags); tags_new = cell(n,2); for k = 1 : n tags_new(k,:) = strsplit(tags{k},' '); end

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how to use White heteroskedasticity-consistent standard error estimators in OLS regression?
Yes, there is! The Matlab function is called *hac* .

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error when trying to export the data to excel - how can I fix this error?
Well, the error message tells you that you want to access a non-existing field in a struct. So the error has nothing to do with ...

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Why i am getting wrong value of abcd ?
You don't get the wrong values. sin(139) = 0.81, that is right, but that is not what your code calculates. It calculates sind(13...

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