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extract the last value from each cell in array?
The simple MATLAB approach: M = readmatrix('transRewards_40_0.1_2.csv', 'LineEnding',']', 'TrimNonNumeric',true) plot(M(:,20))...

17일 전 | 0

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Questions about the rgb2gray function
"does anyone know why?" The values shown in the documentation are shown only to 3 decimal places. The actual values used for t...

17일 전 | 0

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Replacing values of a vector with values in another vector of a different size
A = [0,0,0,1,1,1,0,0,1,1,0,0,0]; B = [1,2,3,inf,4]; C = double(A); C(A==1) = B; C(isinf(C)) = 0

19일 전 | 0

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How do I compare two shuffled vectors, and get the indexes of one as it appears in the other?
A = ["cond1","cond2","cond3","cond4"]; b = ["cond4","cond2","cond1","cond3"]; [~,X] = ismember(A,b)

19일 전 | 1

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Problem with accessing struct in a struct
"Why didnt my idea work out accessing the variable/array in the struct in the struct by using the command oe_sum.a.A for example...

19일 전 | 0

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Improve speed of execution by pre allocation of array
"How preallocation could be done in this and similar case?" In that and similar cases the MATLAB approach would be to simply as...

20일 전 | 0

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Converting rough strings to exact strings
S = [... "textIdontCareAbout_Phenolic32_Group5_textIdontCareAbout" "textIdontCareAbout_P1_textIdontCareAbout" "te...

20일 전 | 0

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Replacing Arrays and Matrices
"Is it a good idea to overwrite an array with matrix?" There is no difference: MATLAB does not have a "matrix" class: all numer...

21일 전 | 1

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How to make a m*2 matrix into n number of 2x2 matrices
A = rand(208,2); C = mat2cell(A,2*ones(104,1),2)

21일 전 | 0

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Cell array with space between the ' and }
"the only strange thing about the cell array is that the {'15.0' } has a space after the ' and before the }." It is not strang...

22일 전 | 0

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How to rearrange columns in a MATRIX?
x = [1,2,4,4,5,6; 3,4,6,6,7,8; 3,4,5,6,6,7; 4,5,6,8,7,8] y = reshape(permute(reshape(x,size(x,1),2,[]),[1,3,2]),[],2)

24일 전 | 1

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How to read and use folder name from Address Path?
SelMatPathOld = 'D:\ninn\2_resimResult_0628\20220330'; [~,sub] = fileparts(SelMatPathOld) old = fullfile('.',"ComapareSummary"...

24일 전 | 0

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Using a loop to load multiple mat files from measurement into the workspace
https://www.mathworks.com/help/matlab/import_export/process-a-sequence-of-files.html P = '.'; % absolute or relative path to wh...

24일 전 | 1

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How do I load multiple .mat files and save them as variables?
https://www.mathworks.com/help/matlab/import_export/process-a-sequence-of-files.html P = '.'; % absolute or relative path to wh...

26일 전 | 0

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To extract the last sub string from strings
Avoid slow CELLFUN, STR2NUM, REGEXP, etc. One SSCANF call is probably the most efficient approach by far, as well as being very...

26일 전 | 2

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How to remove space after using num2str?
V = [1798.4;1798.6;1798.8;1799;1799.2;1799.4;1799.6;1799.8] S = string(V)

26일 전 | 0

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Overwrite table data with 'Yes' or 'No' according to the logical index
Simpler: S = load('sample1.mat'); T = S.sampleinput X = strcmpi(T.TEST_ITEM1,'TV'); T.TEST_LOAD1(:) = {'No'}; T.TEST_LOAD1(...

27일 전 | 0

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how to query string exactly in matlab
C = readcell('TEST.xlsx') X = matches(C,'M2') or X = strcmp(C,'M2') TIP for the future: scroll to the bottom of the CONTAINS...

27일 전 | 0

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How to index the matrix only the first dimension of the rest
This will be quite efficient because none of the data in memory is moved around, only the array header is accessed. It also wor...

27일 전 | 1

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compare 1X6 cell data with Structure
It is unclear from your question, if both MatFiles structures are one and the same, or are different. Note that your approach d...

27일 전 | 0

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How to print multiple Values using sprintf In matlab
Rather than hard-coding a fixed number of values to print, I recommend writing more robust code using STRING &JOIN or COMPOSE or...

28일 전 | 0

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How to sort the files obtained by ImageDatastore?
A very neat and simple approach (from an answer by Pranay Koppula here) is to apply NATSORTFILES to the FILES property of the IM...

28일 전 | 0

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How to extract a string before a number?
The simple approach using REGEXP, without wasting time fiddling around with indices: str = 'abcd-xyzw-1.2.3.zip'; sub_str = re...

28일 전 | 0

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How do I search for and assign variables within my filespace?
Once those differently-named variables are in the workspace then you are really up the creek without a paddle. Fiddling around w...

29일 전 | 0

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How to separate alternate elements from an array?
A = [1,2,3,4,5,6,7,8]; X = A(1:2:end) Y = A(2:2:end)

약 1달 전 | 0

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Looping through different structures?
You did not tell us if those structures are all saved in one MAT file, or each separately in their own MAT files. That would cha...

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How do i count numbers ending in 3
Simple, efficient, basic mathematics: x = [234,352,298,213,365,321,293,213]; n = nnz(mod(x,10)==3)

약 1달 전 | 0

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search for a folder from a different directory
Using CD is slow and makes code harder to debug. The efficient approach is to use absolute/relative filenames. The best approac...

약 1달 전 | 0

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How to remove additional comma from string?
tdat = ["t1,t2,t3"; "d2,d3,d4,"] tdat = regexprep(tdat,',+$','')

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Weird-Confusing mistake in subtraction result!!!!
"Weird-Confusing mistake" Not weird, not a mistake, but perhaps confusing to the uninitiated. "please help me with this proble...

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