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Trying to count number of cells between two columns
In the code that you have shared whichDistance is an empty matrix. So when you do raw(whichDistance, :)=[]; raw array doesn't ...

4年以上前 | 0

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index array to access the value in matrix
Step1 - Convert the subscript to indeces using x & y(Hint: sub2ind) Step2 - Calculate values of IM for calculated indeces Step...

4年以上前 | 0

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Writing a Function Code
Try: function out = timeconv(t) y = datestr(round(t/900)*900/(24*60*60),'HH:MM AM'); end

4年以上前 | 0

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How to find the maximum value for each 24 rows in an array?
According to the comments, you have provided, this will produce the desired output : yd = max(max(mn2t)); % first find maximum ...

4年以上前 | 1

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how to index a cell array?
Try : area_r = arrayfun(@(a) cellfun(@(c) trapz(c(c>=0)),a.elevation,'UniformOutput',false), K, 'UniformOutput',false); I hope...

4年以上前 | 0

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Getting an empty plot
Try: clear; x = linspace(5.62,31.62); p = -10*log10((1+ (31.5844 * (x.^2)) + (11.24*x*cos(pi)))./ (32.5844*(1 + (x.^2)))); % ...

4年以上前 | 1

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Legend in a "for loop"
Try : for ii=1:length(giri) figure(3); plot(m(indice_m_0:loc(ii)),psic_pos(ii,indice_m_0:loc(ii)),'DisplayName',['ii = ',num2...

4年以上前 | 1

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How can i return a value based on mutliple fields?
Try: id = find(N2.Components(:,1) == 290 & N2.Components(:,2) == 296); PowerConsequences_out = N2.PowerConsequences(id); ICTC...

4年以上前 | 0

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Sub function error within main function
Try: function volSAtsa(l , w, h) vol = volume (l, w, h); [a1, a2, a3] = sides(l, w , h); tsa = total(a1 , a2 , a3); out(vol...

4年以上前 | 0

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How can I make the numbers count horizontal instead of vertical?
Try a = input('What is the size of the square array? (Enter one number): ','s'); sq = str2num(a); elements = 0; for x = 1:sq...

4年以上前 | 0

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Plotting daily mean values of temperature
Assuming there are no leap years in this period of time, I think you have a vector of dimesion (35040x1) (2samples*24hrs*365days...

4年以上前 | 0

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In an assignment A(I) = B, the number of elements in B and I must be the same.
Your: A(17:240) % is a vector of 224 elements ((240-17+1)x1) while B % is a vector of 18 elements (18x1) that's why you are...

4年以上前 | 0

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how to modify input-output script to show how many line were copied.
Try: ifn = input( 'input file name: ', 's' ); ofn = input('output file name: ', 's' ); ih = fopen( ifn, 'r' ); oh = fopen(...

4年以上前 | 0

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Surface area of sphere integral form
Limits should be [0, pi/2] & fun should be sin fun = @(theta) sin(theta); S = 4*pi*R^2*(integral(fun,theta_1,theta_2/2)); % t...

4年以上前 | 0

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How to extract Month string from day_Month_Year time variable and create a new quarterly time index?
If I understand the question correctly, this should work : Month_variable = datestr(datenum('Oct_01_2019'),'mm'); I hope it he...

4年以上前 | 0

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problem in running time of my project
I changed one simple thing, it was working more efficiently for me: clc clear; tic; Input = [ 5 12 0.02 4 ...

4年以上前 | 0

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How can I format a large cell of data into one big column underneath a (predeclared) title?
Try this: my_storage = titles; %foo, bar, fubar header titles my_storage_mat = [transpose(theS...

4年以上前 | 0

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How do I delete multiple elements from a column array using a while loop?
This should do the job: A = [1 0 1 0 1 0 1 0]'; A(A==0) = []

4年以上前 | 1

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How do I create a matrix surrounding the center element?
Try: n = 5; A = zeros(n); [r,c] = find(A==0); sub = [r,c]-(n+1)/2; for i = 1:(n-1)/2 ind = find((sub(:,1)==-i&sub(:,2)>=-i...

4年以上前 | 1

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a zero finding function
Hint: (for small x). You can rewrite the equation . I think rest you can solve using linear algebra.

4年以上前 | 0

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How can i solve?
Below code worked for me : rng default tsim = 0:0.002:10; % simulation time Amp = {-7,-5,-3,-1,1,3,5,7}; % Amplitudes dt = 0...

4年以上前 | 0

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How can I move through an array and a vector that need to be compared?
My undersanding for the question. For example you have a coordinates of 4 test planes (X) & coordinate for a separate referenc...

4年以上前 | 0

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Summation of vectors: use of sum function in loop
I think Newvalue=(1/t)*sqrt(Value); should be outside the for loop : vector=[1;2;3;4;5;6]; vectortwo=[1;3;4;5;6;8]; s=leng...

4年以上前 | 1

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Converting a string to datenum format
Try: DateString = '2011-08-31T21:16:01.948Z'; RepExp = '[a-zA-Z]'; % want to replace any alphabet, indicated by [a-zA-Z] RepS...

4年以上前 | 0

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Problem with computing integral of a function
Using some info from this question, which you have posted again. My understanding is that you want to calculate Phi at each n & ...

4年以上前 | 0

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How to get text file from char
Try : clc; clear; tic fid = fopen('myFile.txt','w'); % open text file b = sprintf('0123456789'); d = 0; T = char; for ii...

4年以上前 | 0

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How to write a LOOP for this case?
I think this is the continuation of this question. So, once you create struture as mentioned in the above answer, you can use:...

4年以上前 | 1

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How to exclude some additional points from plot legend?
You can assign plot to different variables and when you use legend only use handles of the assigned variables. For e.g. figure(...

4年以上前 | 0

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How to summarize this code?
You can try to create structure for the data of different years: for i = 1:length(precips) precip.(['y',num2str(i+1981)]) ...

4年以上前 | 0

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Can you use replace to remove all characters that aren't letters from a string?
Try str = 'I; love123 you-+'; str_new = regexprep(str,'[^a-zA-Z\s]','');

4年以上前 | 2