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The average of the second largest values
Given a matrix, find the average of the second largest values in each row. The same value does not exist on a row. Example: ...

4 years ago

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The great 82-year-old
Let's answer the question below; 'I am *x* years old and I have never written programs. If I study from now, will I be able ...

4 years ago

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DC-DC boost converter
Find the output voltage of a DC-DC boost converter given input voltage and the duty cycle ratio

4 years ago

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When you enter something invalid, your program should not stop, and should keep asking for a number
function g = get_valid_grade while 1 g = input('Enter Score(0 - 100): ','s'); g=str2double(g); if g<=...

4 years ago | 0

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Capture reaction time to specific button press
Take a look at my Psychomotor Vigilance Task code: https://www.mathworks.com/matlabcentral/fileexchange/106625-psychomotor-vigi...

4 years ago | 0

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Problem with Cell Array in Table
Why not just a matrix? It does not seem like you have any field names. M=[]; for k=1:5 M=[M;T.Var1{k}]; end

4 years ago | 0

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I want to convert the resulting 8 bit binary bits back to quantization levels
s=randi(256,1,1000)-1;%quantized signal b=dec2bin(s',8)'; b=b(:)';%binary character signal B=b-'0';%binary array signal r=re...

4 years ago | 1

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Find consecutive ones and save the contents
s=num2str(ind6(:,2)'); s=s(s~=' '); [Start,End]=regexp(s,'[1]{2,}'); for k=1:length(Start) c{k}=ind6(Start(k):End(k),1)';...

4 years ago | 1

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picking numbers from matrix
A=[0 4 8 5 0 0 0 4 6 2 8 0 0 0 7]; for k=1:size(A,2) r=unique(A(:,k)); r=r(r~=0); B(:,k)=r(randi...

4 years ago | 0

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Normalizing histogram counts to 1
Don't you want probability. histogram(Output, 'Normalization', 'probability');

4 years ago | 0

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how to count array of 1 and 0 repeated times
a=ones(1,10); b=[]; for k=1:10 b=[b,randi(2,1,20)-1,a]; end % above just generates binary series s=num2str(b); s=s(s~='...

4 years ago | 0

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Having problem in for loop, Can you guys please help me?
If you can advoid it, you should never make multiple variables but should place them all in a matrix. If ROI_Mask's are matrices...

4 years ago | 0

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combine matrix from different matrix
C=reshape([A;B],size(A,1),[]);

4 years ago | 0

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How to stop the axes from changing within loop without defining them every iteration
Why not just move it outside the loop? hf = figure(1); hold on rectangle('Position',[-0.1 -0.1 10.2 4.9]) for i = 1:length(Y...

4 years ago | 0

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How can I print row number to matrix in matlab?
M=randi(2,10,3)-1;%sample matrix newM=M.*(1:size(M,1))';

4 years ago | 0

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for loop question (column vector?)
Of course you will get NAN for log(0) RT_W = [0.4;0.5;0.6]; x1 = 0:0.01:1; x2=1-x1; for k=1:length(RT_W) dG_W(k,:)=RT_W...

4 years ago | 0

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Code not graphing properly?
K_traction = K_m*(1+(f_i*((K_m/(K_m-K_i))-s1)^-1).^-1);%just missing a dot .^-1

4 years ago | 0

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How to fit an exponential curve for every column in a matrix?
for k=1:36 B{k}=fit((1:257)',A(:,k),'exp1'); end

4 years ago | 0

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Solved

To Bet or Not to Bet
Given your current poker hand, the visible cards of your opponent's hand, and the total number of cards being dealt (5 card stud...

4 years ago

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To Bet or Not to Bet
Given your current poker hand, the visible cards of your opponent's hand, and the total number of cards being dealt (5 card stud...

4 years ago | 0 | 3 solvers

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How can I put an image over another in a specific coordinate?
row=256; col=256; img=ones(row,col); img(100:190,100:170)=0;%why not just override the image at the pixel locations imshow(i...

4 years ago | 0

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create a loop to give any number , instead of entering values manually
Still not sure what you are trying to do. x = 0:0.1:5; Fplot = zeros(length(x),NumStates); F=Fplot;%preallocate F for i = 1:...

4 years ago | 0

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How to calculate a mean of column one across multiple tables?
m=sum(arrayfun(@(x)sum(table2array(c{x}(:,1))),1:18))/1800;% c is your cell array, this finds mean of first columns loop to fin...

4 years ago | 0

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How to set upper and lower limit of random number
dataSet=50*rand(1,1000)+300;

4 years ago | 0

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Encrypt and Decrypt “ABZSTYXN” using the key k=7 by shiftcipher method.
key=7; msg='ABZSTYXN'; encrypt=char(mod(msg-'A'+key,26)+'A'); decrypt=char(mod(encrypt-'A'-key,26)+'A');

4 years ago | 0

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Use the values in one matrix as index values to another matrix and replace with a value
The sizes of A and B in your example are not the same. m=max(A,[],'all'); B=zeros(m,size(A,2)); a=A+(0:m:m*(size(A,2)-1)); B...

4 years ago | 0

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How to define a variable as a condition of other variables
TSI=1000:2000; T=(TSI/r^2/SB_constant*L^2).^.25;

4 years ago | 0

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How do you extract the elements of a cell that have the largest length?
[s,d] = cellfun(@size,A); m = max([s,d],[],'all'); idx=s==m|d==m; Anew=A(idx);

4 years ago | 0

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ERROR : Unrecognized function or variable , Index exceeds the number of array elements
er1 = 2.55; er2 = 1; eta_1 = 377; eta_2 = 377/sqrt(er1); sin_theta_b = 1/sqrt(1+er1/er2);%just a scalar sin(theta_b) makes n...

4 years ago | 0

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How can I randomly select 1000 small matrix like 11X11 from 7081X7811 matrix size?
r=randi(7070,1000,1); c=randi(7800,1000,1); for k=1:1000 newMatrix(:,:,k)=yourMatrix(r(k):r(k)+11,c(k):c(k)+11); end

4 years ago | 0