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what optimisation function is appropriate to solve a set of linear objectives subject to inequality constriants.
Hi, This links should help: <https://de.mathworks.com/help/optim/ug/optimization-decision-table.html> <https://de.mathw...

8年弱前 | 0

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Most nonzero elements in row
Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...

8年弱前

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Saving and loading a Multiclass SVM Model
Hi, save the workspace with the trained model in it. If you want to make predictions in later matlab sessions just load the c...

8年弱前 | 0

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How to write/read a table to/from a CSV that has multiple values per column?
Hi, the first part is known from your question, just added a row to see if it works with more than one column: x = [...

8年弱前 | 1

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Converting tabulated data to 3D plot
Hi, define a vector x x = [0 10 30 60 120 -10]; define a vector y y = 1000:1000:7000; and calculate/write you...

8年弱前 | 1

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How to add nodes and display it as a graph??
Hi, one issue is, that you wrote: for i = 1:length(i) instead of: for i = 1:length(j) Since length(i) is e...

8年弱前 | 0

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How to write/read a table to/from a CSV that has multiple values per column?
Hi, after importing the data in the format you dont want, you could use the <https://de.mathworks.com/help/matlab/ref/mergeva...

8年弱前 | 2

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Problem with non linear fit model
Hi, check the size of: Z23= (Z2*Z3)/(Z2+Z3) Z234 = (Z23*Z4)/(Z23+Z4) maybe you should also use .* and ./ here ...

8年弱前 | 0

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Is their any toolbox in matlab for finite element analysis
Hi, have a look at this and the examples given: <https://de.mathworks.com/products/pde.html> There is also video ma...

8年弱前 | 0

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Error in using cost matrix for classification model?
Hello, I suspect the following problem - but I can not test it without data ... You create a struct called "cost" that con...

8年弱前 | 0

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g1(h*ab) = 0.116|sin((h*ab-90)/2)|+0.085
Hi, there are at least 2 things to do in your code: * Get rid of the 2 * in beginning of line 18 and the * at the end of l...

8年弱前 | 0

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sample data within margin of SVM
Hi, For calculation of the accuracy you could calculate the error from your crossvalidated model using crossval comm...

8年弱前 | 0

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Divide table in days and then in hours.
Hi, if you use a <https://de.mathworks.com/help/matlab/timetables.html |timetable|> for storing your data the function that m...

8年弱前 | 1

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How can I force a non linear lsq curve (fitnlm) fit through a start and end point??
Hi, you could use this instructions and adjust the given example to your Problem: <https://de.mathworks.com/matlabcentral/...

8年弱前 | 0

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reduceDifferentialOrder returns more equations than variables
Hi, you could try [newEqs,newVars] = reduceRedundancies(eqs,vars) see more Information on the documentations site of ...

8年弱前 | 0

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NaN/Inf/Complex value warning using "fit"
Hi, if you do not specify any start points, this can happen, because the start Points are choosen by a heuristic normally. Yo...

8年弱前 | 0

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calculating accuracy and confusion matrix
Hi, to compute the confusion matrix use: confusionmat command. Some examples are given in the <https://de.mathworks.c...

8年弱前 | 1

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Crossover and mutation operator used in genetic algorithm (optimization toolbox)
Hi, see here <https://www.sciencedirect.com/science/article/abs/pii/S0096300309001830> read espacially the first part o...

8年弱前 | 0

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Realistic behaviour of semi conductors: IGBT, MOSFET
Hi, Simscape Electronics would be the right choice for this purpose. See here for more Information: <https://de.mathworks....

8年弱前 | 0

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Make predictions on new data using a SVM
Hi, use the predict command for this purpose. See the documentation for <https://de.mathworks.com/help/stats/compact...

8年弱前 | 1

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I am creating a graph using graph function but it shows error. why so?
Hi, the code you sent works on my R2017a. There is no error - which Matlab version do you use? This function was introduced i...

8年弱前 | 0

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Fit curve to nonstandard data
Hi, if you have the curve fitting toolbox, you could consider this for your purpose: <https://de.mathworks.com/help/curvef...

8年弱前 | 0

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How to create a matrix whose elements are function of their indices?
For such calculations on this scale you should try without the symbolic toolbox. If you look at the Wikipedia article for ell...

8年弱前 | 0

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Non-linear system solver
Hi, you could use x = lsqcurvefit(fun,x0,xdata,ydata,lb,ub) to solve this with the known bounds for b and d. When yo...

8年弱前 | 0

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Accuracy and ROC of SVM
Hi, the better way to do this is to use the built in hyperparamter optimization using the option: 'HyperparameterOptimiz...

8年弱前 | 0

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How can I correct this error?
Hi, to show disp over tmp Change the plot command: plot(tmp, acc, 'b',tmp,disp,'r.') which will give you this result...

8年弱前 | 0

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How do I make 1 matrix from this two matrices?
Hi, you cant make a matrix from this, because in one file there are strings in a language i dont know. Use a table instead: ...

8年弱前 | 0

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how can i fix this freezing problem when use syms?
Hi, there are some Problems since this update. See here: <https://de.mathworks.com/support/bugreports/1755918> Meanwhil...

8年弱前 | 0

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Personal fit using lsq
Hi, try this: F = @(x,xdata)x(1).*(xdata.*(1.0./1.5e1)+2.41e2./2.5e2).^2+x(3).*(xdata.*(9.0./2.5e1)-xdata.^2.*(1.0./1.5e...

8年弱前 | 1

質問

Display the input options for functions with multiple input arguments
Hi, I have a function that takes more than one input argument - see my example where there are 2 arguments: function z =...

8年弱前 | 1 件の回答 | 2

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回答