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per isakson


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Last seen: Today 2010 이후 활성

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Whitespace Delimited Textfile, NaN results?
The problem is caused by 'Delimiter',' ' in datacell = textscan(fid,'%f%f%f%f', 'Delimiter',' ', 'CollectOutput', 1); in co...

약 13시간 전 | 1

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empty array size is stuck on 1x3
Try replace fscanf(fileID,'\n\n\n\n\n\n\n\n\n\n\n\n\n\n'); by for jj = 1 : 14 fgetl( fileID ); end fscanf(fileID,'\n\n...

3일 전 | 0

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Please help me to look at the code. Thx
This returns a numerical result, but it's not an integer. fun = @(x) exp(-x.^2./2); int = gausslegendre( 0, 2, fun, 1 ) func...

10일 전 | 0

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I have an invalid use of operator error
I have modified your function to avoid the recursive call of the function. atmos function [T,p,rho] = atmos() h = 0:0.2:20...

10일 전 | 1

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답변 있음
Trouble using the system command with special characters
You try to call system() with a sequence of several input arguments and assumes that system() shall join these arguments to the ...

10일 전 | 0

답변 있음
Cell Mode and how to use it in Debugging.
There is a bit of confusing nomenclature regarding this feature. Futhermore the feature has evolved over the years. I found this...

15일 전 | 0

질문


How to find package functions that are shadowed?
I'm missing something. It is possible to have several package functions with identical fully qualified names, e.g. p1.test, on ...

17일 전 | 답변 수: 0 | 0

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답변 있음
Create matrix using the array as index
Try this M = zeros(5,5); a = [2,2,1,0,3]; for jj = 1:5 M(a(jj)+1,jj)=1; end disp(M)

20일 전 | 1

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Import large csv as datastore with formatting errors
Comment out the offending rows open files while not( feof(fid) ) chr = fgetl(fid); is_ok = analyse_row( chr ); ...

22일 전 | 1

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I am getting "Undefined function or variable" for an existing variable.
Run this modified script from the command window whos par* run QuickSIN_parameters.m % load experiment parameters whos par* ...

23일 전 | 0

질문


R2021b: The Run Section tool in the Editor has been removed
I use the Run Section tool all the time and was surprised to read in the R2021b release notes that it's been removed. Is it repl...

약 1달 전 | 답변 수: 2 | 0

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how to delete repeated rows in a table?
Test this %% M = [518460 3.322; 518460 -12.984; 518520 3.798; 518520 -10.28; 518580 7.763; 518580 16.851; 518640 5.959; 522225...

약 1달 전 | 1

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답변 있음
how to find a float number
find( abs( y7 -(-0.3340) ) < tol ) You choose tol. See eps - Floating-point relative accuracy

약 1달 전 | 0

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Tiny discussion on good practices in object oriented programming (OOP) through a simple example
"[...]titles of decent books for non-programmers" AFAIK: There is no book on object oriented design and programming with Matlab...

약 1달 전 | 0

질문


Is the Abstract keyword needed to make a method abstract?
Is this correct Matlab syntax classdef MyClass methods outarg = my_method( this, inarg ); end end R2018b a...

약 1달 전 | 답변 수: 1 | 0

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How to speed up the while loop?
You didn't test the code before uploading! I modified the input lines z = 1; % input('Enter zeta, z = '); w = 1; % input('Ent...

약 2달 전 | 0

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Matrix dimensions must agree.
Because (jy12) is 400x400 and omega is 200x200

약 2달 전 | 0

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I got stuck with a loop after the value gets to NaN
The values of xr and yr do not converge to a solution that you expect. xr goes to zero and yr goes to "infinity". >> Newton_Ra...

약 2달 전 | 1

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Why the ouput of disp input function become looping?
The expected output is repeated a zillion times, because yfit is a vector with a zillion elements >> whos yfit Name Si...

약 2달 전 | 0

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답변 있음
Split every matrix in cell and make it into different cell
One way %% M = ones(32,32,2,3); % Sample data (20000 replaced by 3) C = mat2cell( M, 32, 32, 2, ones(1,3) ); %% C = sque...

약 2달 전 | 0

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How to convert 32x32x2x20000 into 20000x1 cell array?
A mat2cell example %% M = ones(32,32,2,6); % Sample data (20000 replaced by 6) C = mat2cell( M, 32, 32, 2, ones(1,6) ); %...

약 2달 전 | 0

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Why is my function not working?
The function must be at the end of the m-file. It's a local file in a script. (Or you can have the script and the function in tw...

약 2달 전 | 0

답변 있음
I cannot access the comment pane of the MathWorks Blogs. Am I the only one?
Tech support has reproduced the issue and suggests two work arounds Incognito mode in Chrome Clearing cache or cookies "Remo...

약 2달 전 | 0

해결됨


Finding sum of even numbers in a vector.
Find the sum of all the even numbers present in the input vector x. Examples: Input x = [1 2 3 4] Output y is 6 Input...

2달 전

답변 있음
Do I use the "for loop" correct or efficiently?
Replace the loops by a(1:1800)=50; a(1801:3000)=90; a(3001:3500)=0; to match the figure

2달 전 | 0

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Specify nature/type of property
... or something like: classdef meals properties food (1,1) struct = struct( 'type',{'wheat'}, 'calories',{...

2달 전 | 0

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How to understand a datenum date?
A serial date (number) represents time as the number of days (and fraction of days) from January 0, 0000. sdn = now % the fu...

2달 전 | 0

질문


I cannot access the comment pane of the MathWorks Blogs. Am I the only one?
Over the last week I've failed to access the comment pane of the MathWorks Blogs, but for a few short occasions. Does anybody el...

2달 전 | 답변 수: 1 | 0

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답변 있음
Strings to variable names
First a little exercise %% results = readtable('raw_data.csv'); results(4,:) %% results.Properties.VariableNames{'Sigma'} =...

2달 전 | 1

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How to call a class-specified overloaded version of a function without using an object instance as an argument
"I don't want to define 'sin' as a static method because then sin(myNum) will not automatically invoke the overloaded function" ...

2달 전 | 1

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