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H=filter([1,-S],0 , Z);
Answered 1 year ago
I want to find the following Z(i)s but inside the sum is only for j. How can I write following script with sum on only j?
Asked 1 year ago
II have a time series Yt and I sorted them in ascending order and I got Yi, then I used them in a function and I got Z...
Asked 2 years ago
I am trying to build a n*k matrix but each row are produced by a function which has a 1*k output. How can I build that? I...
I need to rank the data in a matrix but tiderank function does it for each column separately. how can I do it for all data ...
I have function named LL in a script named LL.m this fuction is like this
function param1=LL(u1, u2, x)
I am training a simple BP neural network with 8 inputs, 1 output and 1 hidden layer with 10 nodes in it.
my weight matrices is ...
Pk is a 1*5 , and LandaMean is 1*37 matrice
Pk = LandaMean(k+1:k+m-1);
How can I test whether my observed values come from a chi-square distribution with n-degrees of freedom (preferably with Anderso...
Asked 5 months ago
Is there any difference between
unifrnd(0, 1, n, 1)?
Asked 6 months ago
I know that we can get the residuals of the model by the following function:
res = infer(fit,Y);
Now if we have residual...
Asked 7 months ago
I have a plot like this:
E = plot(100.*x2(433:444,1),'*-r','MarkerSize', 5);
This is the ARIMA part of my code
TS2 = TS(:,2);
[fit,VarCov,LogL,info] = estimate(model,TS2(1:n2,1))
I have a n*2 matrix named Y which has two columns; the first column is my observation values and the second column is the p...
I need to assign two identifiers to a vector of n values like _V |i,j|_ in a way that _V_ is not a cell but it is a vector ...
I am trying to fit a gumbel distribution on a series of data. So I want to minimize the negative of maximum likelihood by optimi...
how to generate 1000 random numbers with extreme value dist type 1 (Gumbel) with know parameters m and a
I want to define an ARIMA(1,0,8) but I only want the model to find the optimal values for first and last MA orders in a way that...
I am relatively new in MATLAb so sorry if my question is very simple:
in my workspace they are some variables which are 1*...
I have two vectors Z(m*1) and S(n*1) (Z is my data and S are coefficients from another formula) and I want to adjus...
I am kind of beginner in MATLAB and I try to use the following code. It seems I should define p and q but I can not figure ...
I have a set of data (a time series) Zt (t=1:400) I need to find MLE of parameters a,b,c and d by following equation which ...
I am trying to plot two data set in a figure Y1 starts from x=1 to x=100 but Y2 starts from x=50 to 100. How can I plot Y2 ...
I want to create a series of Hermite polynomials which includes derivative. How can I do that since MATLAB does not have ...
I want to manage two variables in a sum function in a way that sum(i*cos(ik)); which i=1:N , k=1:M but I want only wa...
I am plotting a time series 12 months*10 years=120 values and my default x axis label is from 1 to 120 but I want change the lab...
I have a time series of monthly data for 50 years in a single column of 600 rows how can I convert them to a form of ...
I was optimizing a function named ML with fmincon to find the parameter "theta",
twostage = fmincon(@(theta)ML(theta,para...
I have a function as this:
function l=L2(u1, u2, w, x)
l = -sum(log(((log(u1).*log(u2)).^(-1+x)).*((w.^((2-2*x)/x))-...
n=40; b=1; m=6; s=0.15
if sum(abs(c-L(k)))<=2*s %How ca...
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