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**Content Feed**

Question

How to use find function to find input of 'cell' type?

Hello, I have 'raw' as an array of all cells read from excel (number or non-number). I would like to find the row numbers where ...

meer dan 8 jaar ago | 1 answer | 0

### 1

answerQuestion

Compare two cell in Matlab.

Hello, I have a question that, if A=[ 'ddd', 'aaa']; B=['ddd']; I want to return an array that compare whether A's cell is e...

meer dan 8 jaar ago | 1 answer | 0

### 1

answerQuestion

Can Matlab read the most recent made file in the default folder?

Hello, just want to know if Matlab can import the file that is most recent made based on their modified date and time? I have...

meer dan 8 jaar ago | 3 answers | 0

### 3

answersQuestion

Solving a nonlinear programming using MATLAB?

Hello, experts, just wondering if MATLAB can solve a non-linear programming efficiently. The decision variable is a vector of N...

meer dan 9 jaar ago | 1 answer | 0

### 1

answerQuestion

About parallel computing toolbox

Hello, everyone, I have a code of large scale problem, and it contains many for loops, and all loops are independent. I want ...

ongeveer 10 jaar ago | 1 answer | 0

### 1

answerQuestion

Read or Write an Excel file in Matlab.

I used a lot of read and write functions in Matlab, xlsread and xlswrite. However when I run it pops up a lot of windows that: ...

meer dan 10 jaar ago | 0 answers | 0

### 0

answersQuestion

Output result in a format.

Hello, I would like to let Matlab output the result, the result is several rows, on each row there is name(string), time(string)...

meer dan 10 jaar ago | 1 answer | 0

### 1

answerAbout changing the size of array

This may be helpful: http://www.mathworks.com/matlabcentral/fileexchange/28922-list-queue-stack

meer dan 10 jaar ago | 0

| accepted

Question

About changing the size of array

Hi, it is a follow up of a previous question, but I have not successfully solved it. Assume I have a large matrix(many rows),...

meer dan 10 jaar ago | 1 answer | 0

### 1

answerQuestion

About memory manipulation/speed up program

Hi, All, I am doing a large scale computation problem, and I have several variables, which is large scale (>100MB). I was tol...

meer dan 10 jaar ago | 1 answer | 0

### 1

answerQuestion

Question about assigning value in a matrix.

Hi, all, again, I want to do the work quickly: I have a large matrix A, and I want to assign value in some entry in each row. ...

meer dan 10 jaar ago | 3 answers | 0

### 3

answersQuestion

How to optimize the following algorithm?

I have a large matrix-M, and the rows have been sorted based on the value on some entry. Next I want to identify all rows that c...

meer dan 10 jaar ago | 0 answers | 0

### 0

answersQuestion

compare loops and matrix computation.

Hi, all, I recently found that Matlab executes matrix/vector computation pretty fast than scalar computation with loops. For ...

meer dan 10 jaar ago | 1 answer | 0

### 1

answerQuestion

How to do sort rows more efficiently.

Hi, all! I plan to sort rows to an numerical matrix. First sort them in descending order based on first column, then if there...

meer dan 10 jaar ago | 1 answer | 0

### 1

answerQuestion

Define an array with variable

Hello, I wonder how can I define an array with a variable, for example, x_i=an array, where i changes. I do not think Matlab ...

meer dan 10 jaar ago | 2 answers | 0

### 2

answersQuestion

About Kernel Density Estimator

Hi, I used kde for estimate a continuous cdf from discrete distribution.(http://www.mathworks.com/matlabcentral/fileexchange/140...

meer dan 10 jaar ago | 0 answers | 0

### 0

answersQuestion

save a large data to mat file

Hi, I want to save a large data 3^14*1000 double precision to mat file, however, matlab reports error as: Warning: Variable '...

meer dan 10 jaar ago | 1 answer | 0

### 1

answerQuestion

About unique command problem

Hi, I used unique(A,'rows') to find unique rows of matrix A, however, it has a problem that after picking unique rows, it wil...

meer dan 10 jaar ago | 1 answer | 0

### 1

answerQuestion

About vector comparasion question.

Hi, I know I have asked the similar question, I want to write a if statement that compare vectors, like a, b is 3 dimensional ve...

meer dan 10 jaar ago | 1 answer | 0

### 1

answerQuestion

How could MATLAB store large scale of data.

Hi, All, I have to use a dataset as large as ones(3^N1,3^N2,10^3), where N1 and N2 can be 7~14. However, matlab will report "...

meer dan 10 jaar ago | 2 answers | 0

### 2

answersQuestion

About isinteger command(confusion)

Hi, by the command of isinteger I can check if it is an integer, however, when defined at first, Matlab assume it is double prec...

meer dan 10 jaar ago | 3 answers | 0

### 3

answersQuestion

Is there a command of "not less than or equal to " to vectors?

Hi, want to know if there is a command can compare if two vectors a is not <=b? Now I use while sum(le(a,b))~=N while N is the...

meer dan 10 jaar ago | 1 answer | 0

### 1

answerQuestion

Is there a dataset both matlab and VC++ can use?

Hello, want to program to store a result to file, which dataset can both Matlab and C++ read? I know Matlab can save it to .m...

bijna 11 jaar ago | 1 answer | 1

### 1

answerQuestion

about Find difference set.

Hi, I have two matrices(same number of columns), M1 and M2. M2 is a set of subset of rows in M1. Is there a function in matlab t...

bijna 11 jaar ago | 1 answer | 0

### 1

answerQuestion

Can matlab have command that invalid a lot of command lines together?

Notice that C++ have that by /*...*/ Matlab has % to invalid the line, but does Matlab have command that make multiple lines in...

bijna 11 jaar ago | 1 answer | 0

### 1

answerQuestion

On define a large scale arrays

Hi, all, I want to define and store a large scale arrays, like ones(3^N,1000,N) and N can be 15. However, matlab says it is out ...

bijna 11 jaar ago | 2 answers | 0

### 2

answersQuestion

About running time in matrix.

Hi, I am running a small program, that first sortrows of a matrix by the some column and then compare the order with another col...

bijna 11 jaar ago | 1 answer | 0

### 1

answerQuestion

How to make combinations of given condition?

Hi, all, For example, if I want to make all combination of 5-dim vectors have only 2 two's, other entries are all 0. Is there...

bijna 11 jaar ago | 2 answers | 0

### 2

answersQuestion

How to build the search fast?

Hi I have a database with cost assigned to over 500 zipcodes, that is, one zipcode has a corresponding cost. I want to build a f...

bijna 11 jaar ago | 2 answers | 0

### 2

answersQuestion

Problem about proximity in matlab

Hi, all, I defined an array like S=ones(N,x,'uint32'). And I give values to all of them. However I find out the maximum value...

ongeveer 11 jaar ago | 1 answer | 0