# Sebastian Daneli

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**Content Feed**

Question

Simple vector question.

Say that I have the vectors v1=[1 2 3] v2=[4 3 8] how can I, by using these two, create the following vector v3=[4 3 3 8 8 8...

ungefär 2 månader ago | 1 answer | 0

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answerQuestion

Question regarding matrix with NaN.

I have the following matrix: X=[9 6 9; 0 2 nan; 3 1 2] and from this one, I would like the following matrix new=[3 3 3 2 2 3 ...

ungefär 2 månader ago | 2 answers | 0

### 2

answersQuestion

Using mat2cell

This is the third time that I'm forced to write a question about mat2cell since the explanation Matlab gives about said command ...

4 månader ago | 2 answers | 0

### 2

answersQuestion

Scale on x-axis

I have a vector of 256 data points which is equal to 0.8 ms in total. How do I set the scale from 0 to 0.8, with steps for examp...

4 månader ago | 2 answers | 0

### 2

answersQuestion

using mat2cell

I'm sorry for asking this question again, but I really, really don't understand how mat2cell works. I have a matrix of size 1001...

4 månader ago | 2 answers | 0

### 2

answersQuestion

Using mat2cell

I'm sorry, but I can't seem to understand how to use this function. I have a datamatrix of size 1000x512, and a want to store t...

4 månader ago | 1 answer | 0

### 1

answerQuestion

Sliding function in window?

I have data from recorded brain activity before and after injection of a drug, and I would like to examine the data visually. S...

5 månader ago | 2 answers | 0

### 2

answersQuestion

Storing individual elements of vector in cell.

Say that i have this vector x=[2 45 13] and I want to store these elements in a cell, where each element is stored individual...

6 månader ago | 1 answer | 0

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answerQuestion

Takin the mean of data in tables

I have his table X1=[9 6 9;3 2 7]; X2=[0 2;4 0]; X3=[3 1 2; 8 9 7]; X=table(X1,X2,X3) And I need to take the mean of the ...

6 månader ago | 1 answer | 0

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answerQuestion

Creating a table with only headers

I would like to create an empty table with the headers 'Observations', 'Mean', 'Treatment' and 'Residual'. I would also like the...

6 månader ago | 2 answers | 0

### 2

answersQuestion

Questions about data types and tables

Data types is not strong side in Matlab, so i'm hoping that someone can help me. See comments in code %% I'm storing data type...

6 månader ago | 1 answer | 0

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answerQuestion

Replacing element in table

I have this table X1=[9 6 9;3 2 7]; X2=[0 2;4 0]; X3=[3 1; 8 9]; X=table(X1,X2,X3) How do I replace X3 with X1 so that i...

6 månader ago | 1 answer | 0

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answerQuestion

Finding largest data from table

Lets say that I have a table containing three matricies of different lengths. X1=[9 6 9 0;3 2 7 0]; X2=[0 2;4 0]; X3=[3 1 2;...

6 månader ago | 1 answer | 0

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answerQuestion

Question about matricies in Matlab

Let's say that I have these three vectors: x1=[9 6 9]'; x2=[0 2]'; x3=[3 1 2]' Is it possitble to work with these in Matlab ...

6 månader ago | 1 answer | 0

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answerQuestion

How to do Multivariate Regression Analysis in Matlab

Let's say that I have the model and the data X=[1 1 1 1 1; 0 1 2 3 4]'; Y=[1 4 3 8 9; -1 -1 2 3 2]'; How can I fit and eva...

6 månader ago | 1 answer | 0

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answerQuestion

Issue with FFT/Power Spectral Density

Can someone explain what I'm doing wrong here? I wanna evaluate the PSD of ECG data (electrocardiogram), but I end up with this ...

7 månader ago | 2 answers | 0

### 2

answersQuestion

Change of basis, rotating an ellipse

I though I knew how to do this, apperently i did not. I'm supposted to draw a confidence ellips aroud a cluster of data centered...

8 månader ago | 1 answer | 0

### 1

answerQuestion

Naming cells in for loop

I can't figure this out, how to I name 10 cells in a for loop? A loop that looks something like this for i=1:10 c(insert s...

9 månader ago | 1 answer | 0

### 1

answerQuestion

Highlighting different part of graph

I have this graph, represented as a vector I am analyzing this signol for regions of interest, and I'm saving these positions...

9 månader ago | 1 answer | 0

### 1

answerQuestion

Finding certain numbers in vectors

Lets say that I have these vectors v1=[2 4 1 4] v2=[1 3 3 4] v3=[2 6 9 5] and I wan't to find all the vectors th...

9 månader ago | 1 answer | 0

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answerQuestion

Filling area between lines with color

I have this figure: And I wish to fill the area between the two straight lines with a color. I've looked around and tried fil...

9 månader ago | 1 answer | 0

### 1

answerQuestion

Find order of increasing integers

I have a vector [3,4,8,9,10,13] How can I sort this into [3,4]; [8,9,10]; [13]; in an efficient way? I.e., split the parts o...

11 månader ago | 1 answer | 0

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answerQuestion

Searching for structures in signal

I have a filtered signal were the base line is zero. I wish to search this signal for structures, i.e., find all the values in b...

11 månader ago | 1 answer | 0

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answerQuestion

Scanning signal/Storing anything other then zeros

Hi I have a filtered signal where the base line is zero that looks in principle like this: [0 0 0 -1 2 -2 0 0 0 2 1 -1 0 0 0 2...

11 månader ago | 1 answer | 0

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answerQuestion

Smoothing signals with windows

Hi, I need to write a code to smooth out my estimated power spectral density. This is what i got so far Simulating white noise ...

mer än ett år ago | 1 answer | 0

### 1

answerQuestion

Creating a function with varying numbers of input parameters

Hi I am writing a function to plot data for me in different ways. I would like to decide in which way to plot the data when i c...

mer än ett år ago | 1 answer | 0

### 1

answerQuestion

Plot vertical lines from a point to x-axis

I would like to plot veritcal lines in the xy-plane, from a given point down to the x-axis. I have looked around, but I can fin...

mer än ett år ago | 1 answer | 0

### 1

answerQuestion

Find row(s) of 3x3 matrix where the 1st and 2nd column equals a value

Hi I have a 3x3 matrix, and i would like to find the rows where the 1st and 2nd columns equals a value. M=[1 2 3 1 1 3 ...

ungefär 2 år ago | 2 answers | 0

### 2

answersQuestion

Find and summarize values in matrix WITHOUT loop

Let's say that I have a matrix M=[1 2;1 1], and I need to find all the 1:s in each culumn, and then summerize them in a vector a...

ungefär 2 år ago | 1 answer | 0

### 1

answerQuestion

Assigning names to values in vector

I would like to keep track on my vectors and need to assign a name to each entry. For example: xN=[2 1]=[x1 x2], or something l...

mer än 2 år ago | 1 answer | 0