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Maria445


Last seen: oltre 4 anni fa |  Attivo dal 2016

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Domanda


n nearest non NaN values
I have a long time series (T= 150,000) with some NaN values in it, and I need to perform a regression using a rolling window. ...

oltre 4 anni fa | 1 risposta | 0

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Domanda


Stepwisefit without the constant term
Hi, does anyone know of a way to force the function stepwisefit to yield a model with NO intercept term? I would like to remove...

oltre 5 anni fa | 0 risposte | 0

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Domanda


Unit root test with explosive alternative
I would like to conduct an Augmented Dickey Fuller test, although I would like to test the unit root hypothesis against the expl...

oltre 5 anni fa | 0 risposte | 0

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Domanda


Create a specular colormap
I'm using the patch function with a "hot" colormap. However, I'd like the colormap to be specular; namely I'd like it to be cen...

oltre 5 anni fa | 1 risposta | 0

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Domanda


Color graph area in different shades
Hi everyone, I'd like to do something but don't know whether it's possible or not in Matlab: I plotted GDP values over time in...

oltre 5 anni fa | 1 risposta | 0

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risposta

Domanda


Probability density function plot
Can I draw the pdf of a distribution even if the pdf does not have a closed-form solution, using the characteristic function of ...

circa 6 anni fa | 1 risposta | 0

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Domanda


Constrained minimization where one variable has to be bigger than another
I have a problem using fmincon. Basically, I want to perform a constrained minimization, and the function I want to minimize...

circa 6 anni fa | 1 risposta | 0

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Domanda


Mvregress and choice of the estimation algorithm
I am performing a multivariate regression analysis using mvregress: [beta,Sigma] = mvregress(X,Y,'algorithm','cwls'); ...

circa 6 anni fa | 0 risposte | 0

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Domanda


How to improve the title appearance?
Hi, I'd like to improve a bit the general aspect of my graphs, but I don't know much about it. For example, in the following gra...

circa 6 anni fa | 1 risposta | 0

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Domanda


Surf with wrong colors
I'm using surf to make 3d plots, but one of them comes out weird and I cannot understand why..thus is the figure that comes out:...

circa 6 anni fa | 1 risposta | 0

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Domanda


Multivariate regression p-values
I am performing a multivariate regression analysis using mvregress. To compute the standard errors of the coefficient estimates,...

oltre 6 anni fa | 0 risposte | 0

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Domanda


Multivariate chi2gof
I'd like to perform a goodness of fit test on a multivariate sample using chi2gof(x), but the function requires a vector input. ...

circa 7 anni fa | 0 risposte | 1

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Domanda


tstats and pvalues using fmincon
I used fmincon to solve a MLE problem. I thus found the estimated coefficients, but I'd like to also have a tstat and p-value ...

circa 7 anni fa | 0 risposte | 0

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Force the intercept of a regression to be a combination of the coefficients
Ok I solved it using fmincon

circa 7 anni fa | 0

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Domanda


fitlm with sequential variable names
I'm trying to run multiple regressions using a for loop. This is my code: (N is the number of columns in the matrices, each c...

circa 7 anni fa | 0 risposte | 1

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Domanda


Force the intercept of a regression to be a combination of the coefficients
I'd like to run a linear regression of the form y = a + b*x1 + c*x2, where the intercept a is equal to b+c. How can I set th...

circa 7 anni fa | 1 risposta | 0

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Domanda


if statement does not execute the statements
I can't understand what I'm doing wrong here; basically I have two matrices, A and B, and if one of the two matrices has a row i...

circa 7 anni fa | 1 risposta | 0

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Domanda


Extracting rows from a matrix based on values in columns
Following on from this question <https://it.mathworks.com/matlabcentral/answers/283139-extracting-rows-from-a-matrix-based-on...

circa 7 anni fa | 2 risposte | 0

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Domanda


Double integral with complex numbers in a loop
Hi everyone, I'm trying to run this code (probably there are better ways to write it, but I'm not a pro at Matlab yet). para...

oltre 7 anni fa | 1 risposta | 0

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Domanda


Using fmincon with Matlab 2010 and 2016 returns different results
I ran a code I used on a previous version of Matlab (2010) on the latest version (2016), but the results I got are different. ...

circa 8 anni fa | 1 risposta | 0

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