Answered
Signal Decomposition for a mixed signal
t=0:0.00001:0.3; x1=(exp(-3*t)).*(0.2*sin(2*pi*400*t)); x2=1.2+(exp(-1.5*t)).*(1.1*sin(2*pi*40*t+pi/6)); x3=(exp(-5*t)).*(0.8...

4 years ago | 0

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Answered
Hi I am having a hard time using the getfield. It says there is an error.
lat = getfield(latStruct,latField{1});

4 years ago | 0

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Index exceeds matrix dimensions
I tried this, it worked fine. No error: date_start = "2015-01-01"; date_end = "2019-10-01"; char_date_start= char(date_start)...

4 years ago | 0

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Force nodes to my graph
plot(digraph(o,d,[],24))

4 years ago | 0

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how can I creat a matrix of all possible combinations of zero and ones across eight digits.
decimalVector= [0:1:(2^8)-1]'; binaryMatrix = de2bi(decimalVector);

4 years ago | 2

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Exporting model to classify new data
1.Save: (assuming you want to save/export each classifier in separate files) use save(). 2. ROC curve: use perfcurve() and plot...

4 years ago | 1

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Answered
IFFT of Convolution equivalence
Sorry for the confusion. Here is what I tried: a1 = randi(50,8,1); b1 = randi(50,8,1); x = complex(a1,b1) a2 = randi(50,8,1)...

4 years ago | 1

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Answered
Turning a matrix into a vector issue where it truncates (easy question)
finalMessage = reshape(messageSymbolsDemod,[],1); % from matrix to vector finalMessage = padarray(finalMessage,16-length(finalM...

4 years ago | 0

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Answered
sub2ind gives error: Error using sub2ind (line 43) Out of range subscript.
In your code, xs contains negative values, which can't be the column indices. Also, sc is only 1004x1144. But the values of xs ...

4 years ago | 0

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Answered
()-indexing must appear last in an index expression.
for i=1:1:w for j=2:1:h if (min(Idark(i,j))>= A(i,j-1)) A(i,j)=min(Idark(i,j)); else ...

4 years ago | 0

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Answered
For loop for a comparing values of a column vector with a value
costs=[Fail]'; costs = repelem(costs,1,length(PM_cyc)); output = zeros(size(costs)); for i = 1:length(PM_cyc) output(fin...

4 years ago | 1

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Answered
Function to return poisson random variable
random('Poisson',lambda)

4 years ago | 0

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Average histogram of R,G,B histograms
I=imread('Capture.PNG'); [counts1,edges1]=histcounts(I(:,:,1),linspace(0,1,256)); [counts2,edges2]=histcounts(I(:,:,2),linsp...

4 years ago | 0

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Answered
How can I import dataset in specific range
i=input('Enter a start row: '); j=input('Enter a end row: '); k=input('Enter a start column: '); t=input('Enter a end column:...

4 years ago | 0

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Answered
matching numbers between variables
GroupZERO(ismember(GroupZERO,outliers))=[]

4 years ago | 0

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Answered
Logical index multiple columns
I believe you are trying to find the row-indices of A, where the row contains a 1, and then extract those rows from B. In that c...

4 years ago | 0

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Empty Matrix with Dynamic Fertility Model
Looks like your indexing is off in some places: simchoice = zeros(1000,20) %Looping for 1000 women for i = 1:1000 ...

4 years ago | 0

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How to plot histogram of difference of two images using MATLAB
histogram(image_of_dif) will plot the histogram showing the distribution of values (both positive and negative differences).

4 years ago | 0

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How can I solve this error with MATLAB CODER?
In your example you can certainly preallocate the variable: Conv_out = zeros(1,2*length (Conv_In));

4 years ago | 0

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Answered
Plotting an equation raised to a variable.
fun1 = a_n(1)*(t.^(n)) .^ is a pointwise (elementwise) operation, that means it operates on arrays of same length or one of the...

4 years ago | 0

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Normality test temperature data
Since linear shift won't affect the distribution, you can shift the data and perform log transformation. %% test data data =...

4 years ago | 0

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how to reverse a string using a FOR loop
Update: myString = "abcdefg"; myChar = char(myString); % using array indexing myNewStr = string(myChar(end:-1:1)); % us...

4 years ago | 0

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Answered
How do I combine data tables where there are different row lengths?
T1(ismember(table2array(T1(:,1)),table2array(T2)),2) = T2; T1(ismember(table2array(T1(:,1)),table2array(T3)),3) = T3;

4 years ago | 1

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SVM classifier on digits dataset
fitcsvm() is not designed to train directly on 28x28 images. You need to extract feature vectors for each image. After feature e...

4 years ago | 0

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How do I the minimum points on a 3D surface diagram (x,y,z) as a function of the x and y variables?
I am assuming your x-axis is phi and y-axis is h: min_phi = min(E,[],1); min_h = min(E,[],2);

4 years ago | 1

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How can I get data from histogram ?
I believe you are looking for histcounts() instead of histogram(). [counts, centers] = histcounts(data,'BinWidth',0.005); prob...

4 years ago | 1

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Answered
How do you plot multiple best fit lines to one graph?
On cftool, you can open new fits for the same data in new tabs. So ... no, not on the same figure. But .. you can save the fit...

4 years ago | 0

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Concatinate 4D Time-Signals
You want to concatenate on the dim which is not same for both, right? Catq1 = cat(1,I1,I2); % OR Catq1 = [I1;I2];

4 years ago | 0

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Answered
How to get specific data from specified rows and variables in a table?
S = A - Table.Sensitivity(Table.Sensor_type=="COB4_St1")

4 years ago | 1

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Answered
Truncate a two dim array based on contents of a particular column
N = input('Number of rows: '); A = rand(N,34); A(:,12) = randi([0 3],N,1); % simple version if 12th col only always has 0,1,...

4 years ago | 0