Stephen
Suspensa Vix Via Fit
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Content Feed
Create a matrix using rand function with a value range
0.004*rand(50,50)
etwa 7 Stunden ago | 0
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for loops and storing values
"what can i do to solve this?" Use indexing into a preallocated array: c = nan(46,4); % <--- preallocate! for h = 1:23 f...
etwa 20 Stunden ago | 1
I am getting error
You need to use array operations, not matrix operations (you missed this for multiplication): https://www.mathworks.com/help/ma...
etwa 20 Stunden ago | 0
Error with matrix "Error using vertcat" Dimensions of arrays being concatenated are not consistent.
The problems are on these lines: 0 0 0 0 -1 0 1 0 0 mp*AG4x-Fp4x(1,i) 0 0 0 0 0 -1 0 1 0 mp*AG4y-Fp4y(1,i) Because AG4x and A...
etwa 21 Stunden ago | 0
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How to normalize only one column of a matrix
normalize(X(:,2),'range',[0,1]) or simply rescale(X(:,2)) If you want to replace the data in the matrix then allocate the fun...
etwa 21 Stunden ago | 0
I need to write a code to import multiple csv files, changing delimiter and decimal standard...
Use READMATRIX and set the Delimiter and DecimalSeparator to values that suit your file.
etwa 21 Stunden ago | 0
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merging workspace from different .mat files
"I think the problem ive run into is my files contain the same variable names..." That is not a problem at all, actually that i...
etwa 23 Stunden ago | 0
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Why doesn't this function declaration work?
You are missing a closing parenthesis here: concentrations(n-i-1) = maxconc*(1/factor^(i-1); % ...
ein Tag ago | 1
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Using sprintf to match the results of format
Introduced in R2021a: https://www.mathworks.com/help/matlab/ref/formatteddisplaytext.html format short str = strtrim(formatted...
ein Tag ago | 0
How to code with for loop loops without using ndgrid?
As this is clearly homework, this should get you started: inp = {1:2, 3:4, 5:6}; [A,B,C] = ndgrid(inp{:}); A1=reshape(A,[],1)...
ein Tag ago | 0
Expected Behavior for contains()?
Exactly as its documentation explains, CONTAINS returns a logical TRUE where pat (second input) is found anywhere within the str...
ein Tag ago | 0
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How to perform operations on time matrices
a = [0,2.3450,3.4570;1,3.4670,4.8750;2,4.6350,5.8350] m = a(:,2:end)-mean(a(1,2:end)); [~,x] = sort(m<0,1); for k = 1:size(m,...
4 Tage ago | 0
Operate by logical arrays element by element (error: Unable to perform assignment because the left and right sides have a different number of elements.)
a = [1,nan]; b = [8,9]; x = isnan(a); a(x) = b(x)
4 Tage ago | 0
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Finding consecutive zeros in an array. Not able to solve using diff command
a = [0,0,1,1,-1,0,0,0,1,1,1,-1,0,0,1,-1]; d = diff([false,a==0,false]); b = find(d>0); e = find(d<0); m = max(e-b)
4 Tage ago | 0
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Incorrect results from intersect when entering imaginary numbers
A = readmatrix('data1.txt') B = readmatrix('data2.txt') C = intersect(A,B,'rows')
6 Tage ago | 0
Trouble Reading Multiple .csv Files. "Intermediate dot '.' indexing produced a comma-separated list..." Error.
DataID(i).AxialStrain = DataID(i).RawData(1:ending,1); % ^^^ you need this index every time you ref...
6 Tage ago | 1
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loop on handles on GUI
fnm = sprintf('checkbox%d',i); handles.(fnm)
6 Tage ago | 1
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how to read files with different name using fid
fnm = sprintf('pfoil_1_var_1_%d.raw',i); fid = fopen(fnm,'r');
6 Tage ago | 1
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Sorting Nested Structures based on Name
As far as I can tell, your actual goal is to sort the elements of all structures based on the content of their NAME field. Assu...
7 Tage ago | 0
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Find the index of an interval of values in cell array
index = cellfun(@(x) 500<x & x<956, SS, 'uniform', false);
7 Tage ago | 0
Replace comma with dot after fopen
fnm = 'trial_file.txt'; opt = detectImportOptions(fnm, 'VariableNamesLine',9, 'VariableUnitsLine',10, 'DecimalSeparator',',', '...
9 Tage ago | 1
How to split array into sub arrays?
"I have a feeling that creating individual variables is not most efficient method..." Creating lots of individual variables wou...
11 Tage ago | 0
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Writing pressed key to variable
I suspect that you are getting synchronous code (e.g. the evaluation of a script or function) mixed up with asynchronous code (e...
11 Tage ago | 0
Array don't store value?
Replace n = linspace(t01,t11,h); % Read its help to know why your useage is incorrect. with n = t01:h:t11;
12 Tage ago | 0
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How to create a vector inside a loop with data from a struct ?
T = {ECG.event.type}; % comma-separated list L = [ECG.event.latency]; % ditto xAB = strcmp(T(1:end-1),'A') & strcmp(T(2:end),'...
12 Tage ago | 0
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How to store data when a string condition of another column is met?
T = readtable('SED_FULL_NE.xlsx') [G,YEAR,STATE_ABBR] = findgroups(year(T.BEGIN_DATE),T.STATE_ABBR); COUNT = accumarray(G,ones...
13 Tage ago | 0
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find ( strcmp ( many_different_elements )
"But was wondering if there's a nicer way than to write 90 times in the find line" Of course: forget about repeated STRCMP call...
14 Tage ago | 0
Compare two Vectors and multiply equal entries
ID = 'ABCDEF'; val = 1:6; arr = 'AABBCDDDEFFE'; [X,Y] = ismember(arr,ID); out = val(Y(X))
15 Tage ago | 0
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Convert a cell array into arrays
Where C is your cell array: M = vertcat(C{:,4}) or M = cell2mat(C(:,4))
15 Tage ago | 1
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A function that counts the number of zeros in a vector
D = [1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0]; nnz(D==0)
16 Tage ago | 1
