# Susan Santiago

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**Content Feed**

Question

Can't concatenate table variables?

I'm importing data using the loop below. I'm getting an error that some of the table variables cannot be concatenated because th...

meer dan 5 jaar ago | 1 answer | 0

### 1

answerQuestion

How to create an array that counts the number of consecutive repeating numbers in a given array?

For example, if I have a matrix something like this, A = [1;1;1;2;2;2;2;2;3;3;4;4;4;4;4;4;4;5;5;5;5;1;1;1;3;3;3;3;3;3]. How woul...

meer dan 5 jaar ago | 1 answer | 0

### 1

answerQuestion

how do I find the locations of values in a matrix?

I want to make a matrix with the location of values in an array. This is what i'm trying to do. The first column of TT is in mat...

meer dan 5 jaar ago | 1 answer | 0

### 1

answerQuestion

trying to create a loop that finds a value in an array and creates a matrix with it

I have an array TT where the first column is matlab serial date numbers and each other column is data for various variables. I ...

meer dan 5 jaar ago | 1 answer | 0

### 1

answerQuestion

cannot concatenate variable in a table

My code is attached. There is an issue concatenating the two tables in the first loop. I think the problem is because in some of...

meer dan 5 jaar ago | 1 answer | 0

### 1

answerQuestion

how do I create this loop?

I have a timetable that I'm converting to an array. Some of the columns are NaNs so initially, I just changed the columns to zer...

meer dan 5 jaar ago | 2 answers | 0

### 2

answersQuestion

I'm trying to organize data so it can easily be averaged by date

I have a cell of data where the first column is the full date. I'm being asked to organize it in a matrix so that if something l...

meer dan 5 jaar ago | 2 answers | 0

### 2

answersQuestion

sorting data in a nested cell

I have a cell C that looks like this <</matlabcentral/answers/uploaded_files/135505/Screenshot%20(210).png>> The cells in ...

meer dan 5 jaar ago | 1 answer | 0

### 1

answerQuestion

populating a cell using a loop

This is my code a = dir; i=3; n=1; b = zeros(n,55); while i<=43 d = a(i).name; A = textscan(fopen(d),'%f %...

meer dan 5 jaar ago | 1 answer | 0

### 1

answerQuestion

how to populate a cell with a loop

This is what I have with my code so far. a = dir; i=3; d = a(i).name; A = zeros(40,55); while i<=43 A = textscan(f...

meer dan 5 jaar ago | 1 answer | 0

### 1

answerQuestion

trying to store data in a matrix using loop

so I have 42 data files with names pretty much the same for example "7633_Flux_AmerifluxFormat_0(1)" and then the only thing tha...

meer dan 5 jaar ago | 2 answers | 0

### 2

answersQuestion

trying to create a loop for for opening data files and plotting them

this is the code I have so far. The part in the loop is from code I wrote for just one of the files. I want to change it so that...

meer dan 5 jaar ago | 1 answer | 0

### 1

answerQuestion

how do I use datetick for this code?

A = textscan(fopen('7633_Flux_AmeriFluxFormat_3.dat'),'%f %f %f %f %f %f %f %f %f %f %f %f %f %f %s %s %f %f %f %f %f %f %f %f...

meer dan 5 jaar ago | 1 answer | 0

### 1

answerQuestion

how do I extract part of a cell of string values?

I have a 1x144 cell of string values all with 12 numbers like '201808250100'. I want to extract a cell of just the last four num...

meer dan 5 jaar ago | 2 answers | 0

### 2

answersQuestion

importing data from a text file

I'm importing data from a text file into a script and i was wondering and when doing this using the import tool, I noticed that ...

meer dan 5 jaar ago | 1 answer | 0

### 1

answerQuestion

data not showing up

IC=[0 0 0 0 0 0]; ti=0; tf=20; tspan=[ti,tf]; h = 1; %Scenario 1 fMu1=@(t,y)Mu(t,y,ti,tf,1); [t1,y1]=ode45(fMu1,tsp...

bijna 6 jaar ago | 1 answer | 0

### 1

answerQuestion

error calling a function

function f = Mu(t,y,ti,tf,n) m1 = 55; m2 = 400; m3 = 100; k1 = 230000; k2 = 30000; k3 = 50000; k4 = 3000; n2 = 1500; ...

bijna 6 jaar ago | 2 answers | 0

### 2

answersQuestion

"error using vercat"?

I'm getting this error "Error using vertcat The following error occurred converting from double to function_handle: Too many o...

bijna 6 jaar ago | 1 answer | 0

### 1

answerQuestion

index exeeds matrix dimensions error

t0 = 0; tf = 0.4; h = 0.1; y0 = [2,4]; f = @(y,t) [-2*y(1) + 5*exp(-t); (-y(1).*(y(2).^2))/2]; prob2res1 = myEuler3(f,...

bijna 6 jaar ago | 1 answer | 0

### 1

answerQuestion

how to evaluate a double integral using the trapezoidal rule equation?

Here's what I have so far function [ I ] = myTrapz2D( f, x0, xn, y0, yn, nx, ny ) dx = (xn - x0)/nx; dy = (yn - y0)/ny; ...

bijna 6 jaar ago | 2 answers | 0