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# Stephane Dauvillier

### MathWorks

106 total contributions since 2012

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Answered
How to not plot a single file in a directory?
You can use the function setdiff to remove one value from a set of values: f = dir; names = setdiff({f.name},"myfileIDontWantT...

1 year ago | 1

| accepted

Answered
Create a matrix from another one with an history window of 3 columns
You can try the function diff: A = magic(5); B = diff(A,[],2) But B will have n-1 column what do you want for the extra colum...

1 year ago | 0

Answered
How to store sequence of bits as a bit stream and use the least possible memory ?
You can use the functions: dec2bin to tranform decimal number into binary, string to transform the output of the dec2bin from ...

1 year ago | 0

Solved

Alternate list of elements
Write a function that combines two lists by alternating the elements, e.g. ['a','b','c'], ['1','2','3'] → 'a1b2c3'.

1 year ago

Answered
split legend columns using Matlab 2017a
Legend columns has been introduced in 2018a.

2 years ago | 0

Answered
It seems that patternsearch does not use my initial guess.
Hi, After checking your code I've seen your write to time lb(222) and the second time you specify lb(222)=0 BUT your initial ...

2 years ago | 0

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Answered
Batch processing a function
With the batch function, your script will be executed on your PC as it is. The onlyu difference is your current MATLAB session w...

2 years ago | 0

Answered
It seems that patternsearch does not use my initial guess.
Can you provided your coe ? Is there any constaints for your oproblem and the initakl guess doesn't fit the constraint ?

2 years ago | 0

Answered
Batch processing a function
You need to use the batch function: j = batch('yourScriptName','Pool',4); And replace the for loop by a parfor loop. Be ...

2 years ago | 0

Answered
How to fix "Index exceeds the number of array elements (1)"?
Hi, In you code, first you define L as followed: L=[2*a 2*a a]; Then, you redifine it to: L = L(i); % where i is 1 After ...

2 years ago | 0

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Answered
How to extract only numerical values from cell into new column array?
Try this: in=["chb12_06.edf" "1665 seconds" "1726 seconds" "3415 seconds" "3447 seconds" "chb12_08.edf" "1426 seconds" "...

2 years ago | 1

Answered
Why is the gpuArray version of my code slower?
OK, Basically if your program takes less than a second on your CPU it's not a surprise it will be slower in a GPU or even in a ...

2 years ago | 1

Answered
Best way to read in massive amount of data from csv files?
Hi, If you have huge data file(s), you may want to look at datastore. First datastore can apply on fileS, folder. Then if ...

2 years ago | 0

Answered
Converting cell array from excel to numbers
OK, Well dealing with table, each variables (columns) of the table will have ONE datatype. So that means you have something in...

2 years ago | 0

Answered
Converting cell array from excel to numbers
OK, so if your names are not unique: data=readtable(FileName,'ReadVariableNames',false,'TreatAsEmpty' ,'-'); iHeight=strcmp(ra...

2 years ago | 0

Answered
Converting cell array from excel to numbers
Hi, Before answering your question, know that most of the time the call of function find is useless. In your case you can do ...

2 years ago | 0

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Submitted

Random point inside a polygone
Create random point inside a polygone

2 years ago | 2 downloads |

Answered
Why i getting complex double in fitting ode with experimental data
Have follow the hyperlink: Knowing that, can you set boundaries or do you need to specify constraint (see the docuement page he...

2 years ago | 0

Answered
Why i getting complex double in fitting ode with experimental data
Sorry, I may have been confusing. The LB and UB will be the lower and upper bound of your parameter. Youtr parameter is a 10 ele...

2 years ago | 0

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Answered
Retrieve an attribute from matlab to app designer
There is several ways to do what you want to do. It will depend on your MATLAB knwoledge. To answer you first question. You c...

2 years ago | 0

Answered
Why i getting complex double in fitting ode with experimental data
Yes, except you have to modify LB and UB to specify these boundaries. These should be vectors (for instance LB(1) and UB(1) wil...

2 years ago | 0

Answered
How to use different path in different folder
Ok there is several possibility. Option1a: You want your function foo to be used ONLY by the functions of your project1, then y...

2 years ago | 1

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Answered
Why i getting complex double in fitting ode with experimental data
Hi, You can specify lower and upper bounds for your var. By the way is it normal that your function DifEq compute the following...

2 years ago | 0

Answered
Surf not plotting in App Designer
On the first versions of appdesigner, 3D graph wasn't supported. But it is now. Try to avoir this kind of call with any UI: vi...

2 years ago | 0

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Answered
How to solve the error: 'Undefined function or variable 'aviread''
Which version have you ? aviread have been deprecated bfor releases before being removed completelly in the R2014b release. You...

2 years ago | 0

Answered
Resize subplot to whole figure window
Try this one subplot(1,1,1,gca) It will transform the gca axe into a subplot(1,1,1) axes

2 years ago | 0

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Answered
Why i getting complex double in fitting ode with experimental data
Hi it's seems that the variable U is the first to become complex (just put a breakpoint on the following line): U=1.22*((var(8)...

2 years ago | 0

Answered
Error using matlab.graphics.axis.Axes/set Value
Hi, please provide the line and the error message, it's really hard otherwise to provide a suitable answer. On the following li...

2 years ago | 0

Answered
Draw a graphic window vertically in two parts and draw a graphic in the left part functions f1 (x) with dashed line of black color, and in the right function f2 (x) by crosses green color. Observe the variable x in the interval [-pi/4, pi/4] f1(x)=
I assue you don't know the difference between array operator such as .* ./ .^ and matrix operator * / ^ If you have 2 vectors (...

2 years ago | 0

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