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Mr M.


Hungarian Academy of Science

Last seen: fast 3 Jahre vor Aktiv seit 2014

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Frage


How to fill end of rows of a matrix with NaN values?
I have a matrix M, and vector of indices K. I would like to make an element M(k,j) = NaN if j >= K(k). It is possible to do this...

fast 3 Jahre vor | 2 Antworten | 0

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Why find cannot handle this very simple task?
X = -0.1:.001:.25; find(X == .077) I get the following: ans = 1×0 empty double row vector However X(178) = 0.077. How to ge...

fast 3 Jahre vor | 2 Antworten | 0

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Why linsolve cannot solve this very simple equation?
A = [4,2,2; 5,1,3; 6,0,4]; B = [60; 70; 80]; X = linsolve(A,B) The solution should be 6, 7, 11, since: 4x6 + 2x7 + 2x11 = 60...

fast 3 Jahre vor | 2 Antworten | 0

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Is it possible to determine within a function the location of that function?
Is it possible to determine the location (folder consisting that function) of a used function within the function? I dont want...

fast 4 Jahre vor | 1 Antwort | 0

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How to make raster circle with arbitrary high resolution?
Is it possible to plot a vectorized circle in MATLAB and save it to a pixelized raster figure with arbitrary high resolution? I...

etwa 5 Jahre vor | 1 Antwort | 0

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How to plot a smooth color wheel?
How to plot a smooth color wheel, like this? https://color.adobe.com/create/color-wheel/

etwa 5 Jahre vor | 1 Antwort | 0

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How to fit a line on the plane?
How to fit a line onto dots on the plane? polyfit is not the solution, because it is good for functions and not for points on th...

etwa 5 Jahre vor | 1 Antwort | 0

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How to plot nice thick line segments?
My problem is that there is a little gap or ugly corners when I try to use thick line segments after each other, see the followi...

etwa 5 Jahre vor | 0 Antworten | 0

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How to count first identical elements without a for cycle?
I have a vector [3 3 3 3 3 4 1 1 0 0 0 5 6 3 3 1 1 1], and I want to count threes at the begining of the vector, so the result h...

mehr als 5 Jahre vor | 1 Antwort | 0

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Frage


There is no solution for global optimum search in Optimization Toolbox?
I have to buy the Global Optimization Toolbox?

mehr als 5 Jahre vor | 2 Antworten | 0

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How to count repetition of a row in a matrix?
I have a matrix: M = [1,2; 2,3; 1,5; 2,3; 1,4; 1,6; 2;3, 8,9]; And I want to check number of occurance of a given row, for examp...

mehr als 5 Jahre vor | 1 Antwort | 0

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Frage


Is it possible, or is it used to, or is it elegant to change input variables?
Is it possible, or is it used to, or is it elegant to change input variables/parameters of a function inside the function?

mehr als 5 Jahre vor | 3 Antworten | 0

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Is it possible to set all data(n).x = []; without a for cycle?
Is it possible to do the following withot a for cycle? for n = 1:N, data(n).x = []; end

mehr als 5 Jahre vor | 1 Antwort | 0

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How to define an object witch has parameters and functions?
How to define an object witch has parameters and functions?

mehr als 5 Jahre vor | 0 Antworten | 0

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How to maximize a function if I have both integer and continuous variables?
How to maximize a function if I have both integer and continuous variables? What is the right syntax? I have to use constraints ...

mehr als 5 Jahre vor | 2 Antworten | 0

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Frage


Is it possible to print color text in the command window?
Is it possible to print color text in the command window?

mehr als 5 Jahre vor | 1 Antwort | 2

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Frage


Is it possible to write local function in a function?
Or this is possible only for scripts and not for functions?

mehr als 5 Jahre vor | 1 Antwort | 0

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Frage


How to eval an expression without an error?
I would like to eval an expression, for example eval('x=a+b;'); But in case of non-existing a or b, I dont want to get an error,...

mehr als 5 Jahre vor | 2 Antworten | 0

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How to copy a structure without a field?
I have p with field1, filed2, filed3 (p(1).field1, p(2).filed1, p(1).filed2, etc.). I want to make a copy: q = p, but copy only ...

mehr als 5 Jahre vor | 1 Antwort | 0

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Is it possible to collect length of filed values without a for cycle?
Is it possible to fill the size vector fithout a for cycle? for i = 1:length(params) size(i) = length(params(i)....

mehr als 5 Jahre vor | 0 Antworten | 0

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How to check the existance of a struct field at a given index?
p(1).name = 'name1'; p(1).value = 1:10; p(2).name = 'name2'; I want to check existance of p(2).value, but exist and empty is ...

mehr als 5 Jahre vor | 1 Antwort | 0

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How to find a string in the following cell structure?
I have s{1}.name = 'abc', s{2}.name = 'xyz', ..., s{n}.name = 'something'. And I would like to know the existance of a strin mys...

mehr als 5 Jahre vor | 2 Antworten | 0

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Frage


How to use scatter with transparent dots?
facealpha is not working for me

mehr als 5 Jahre vor | 1 Antwort | 1

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Is it possible to use yticks only on one side?
Is it possible to use yticks only on one side? How to set?

mehr als 5 Jahre vor | 1 Antwort | 0

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What is the simplest way to extract lengths of NaN sequences from a vector?
What is the simplest way to extract lengths of NaN sequences from a vector? Plus the indices of their locations!

mehr als 5 Jahre vor | 2 Antworten | 0

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How to decrease line space between multiple lines in a title, tex or xlabel?
I know how to hack if I want to increase, but how to decrease?

mehr als 5 Jahre vor | 0 Antworten | 2

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How to catch warnings?
I want to catch Warning: Matrix is close to singular or badly scaled, during a matrix division A/B.

mehr als 5 Jahre vor | 2 Antworten | 3

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How to create matrix of all combinations?
Suppose I have variables x1, x2, x3. x1 can be any element of the set {1,2,3}, x2 can be {1,2,3,4,5} and x3 can be {10,11,12,13,...

mehr als 5 Jahre vor | 2 Antworten | 0

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Is it possible to use a function with 2 outputs and sometimes with 4 outputs?
And how to order the output variables? [x1,x2,x3,x4] = f(); or [x4,x3,x2,x1] = f();

mehr als 5 Jahre vor | 1 Antwort | 0

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Beantwortet
How can I reposition the colorbar to not overlap my x-axis label?
Error using matlab.graphics.illustration.ColorBar/set There is no activepositionproperty property on the ColorBar class. set...

mehr als 5 Jahre vor | 5

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