per isakson
Last seen: Today
KTH
2 379 total contributions since 2010per isakson's Badges
Answer 10 questions that were unanswered for more than 30 days
Awarded to per isakson on 12 Jun 2019
Contribute at least one answer each month for 36 consecutive months
Awarded to per isakson on 20 Jul 2017
Solve a problem with a best solution
Awarded to per isakson on 05 Mar 2017
Be the first to solve a problem
Awarded to per isakson on 17 May 2012
Like a problem or solution
Awarded to per isakson on 20 Apr 2012
Your submissions were downloaded 30 or more times in a month
Awarded to per isakson on 01 Nov 2019
Your submission is selected as "Pick of The Week"
Awarded to per isakson on 09 Oct 2019
Publish your first comment or rating
Awarded to per isakson on 09 Oct 2019
Your submissions received 10 five star ratings
Awarded to per isakson on 09 Oct 2019
Publish your first submission
Awarded to per isakson on 09 Oct 2019
Accept 20 answers given by other contributors
Awarded to per isakson on 20 Jul 2017
100 of your answers have been accepted
Awarded to per isakson on 20 Jul 2017
Provide your first answer ever to someone else's question
Awarded to per isakson on 20 Jul 2017
Comment on a problem or solution
Awarded to per isakson on 15 Apr 2012
Create all combination of strings
See: perms, All possible permutations
ungefär 2 timmar ago | 0
Question
How to edit and replace comments on File Exchange submissions?
It's a hidden algorithm that controls what happens when I write comments on my submissions at File Exchange. I failed to find a ...
en dag ago | 0 answers | 0
0
answersSpeed up code:: Code is working but slow..
See: Profile Your Code to Improve Performance and Techniques to Improve Performance
9 dagar ago | 0
How do I use numerical and logical indices to get this output?
One out of many ways %% myArray = [2, 4, -3, 6, 9]; isneg = myArray < 0; myArray( isneg ) = 1;
9 dagar ago | 1
Change [ ] cells in .mat file to NaN
I don't fully understand your question. See: TUTORIAL: how to ask a question (on Answers) and get a fast answer "The code bel...
10 dagar ago | 0
How do I append a row average to a new matrix
With a little bit of guessing. Does this answer your question? %% foo = randi(500,500); cac = mat2cell( foo, 5*ones(100,1), 5...
12 dagar ago | 1
| accepted
Preventing too many function inputs
>> exfunction(1,3,9,4,5) throws the error Error using exfunction Too many input arguments. I assume that's the error you e...
12 dagar ago | 0
MATLAB Answers Wish-list #5 (and bug reports)
Activity Feed: "See more" asks for "See less".
20 dagar ago | 1
How to modify few numbers in a random text file?
Try this %% chr = fileread('model_v2.txt'); ffs = 'model_out.txt'; fid = fopen( ffs, 'w' ); [~] = fprintf( fid, chr, 1.2, 3...
29 dagar ago | 0
How to replace elements of a cell array using a containers.Map
With string and arrayfun on R2018b %% names_to_replace = ["TonnageDeBSA", "D__bitD___eauAuBSA", ... "Pres...
ungefär en månad ago | 0
How can I keep asking the user for correct input even after they press enter?
Use strcmpi( Ready, 'ready' ) instead of Ready== 'ready' | Ready== 'Ready' Don't use == in combination with character array...
ungefär en månad ago | 1
How can I concatenate multiple CSV file and turn into one CSV file
A alternate idea (that wrongly(?) concatenates the the files vertically) Pro avoids converting to numerical and back to text (...
ungefär en månad ago | 0
| accepted
Changing the values of a column in a table.
This statement does it tbl.t = tbl.t(ones(height(tbl),1)); % once refered to as "Tony's trick" Example: %% Create a sampl...
ungefär en månad ago | 1
How to replace specific text in .csv file
Another approach, which avoids conversion to numerical and back to text. (And, I think, works with R2006 and later releases.) %...
ungefär en månad ago | 1
| accepted
Question about accessing data in a nested struct
It is impossible (for me) to help based on the little information that you provide. Here (R2018b) it works fine. >> sas = xml_...
ungefär en månad ago | 0
| accepted
How do I set a class property?
This might help as a start >> vec = vector; >> vec.v1 ans = 120 >> where classdef vector properties v1 ...
ungefär en månad ago | 0
| accepted
Unknown File/Folder in directory
"What does this mean, I dont Understand." I assume that you refer to 34 and 36, respectively. Main_File is a struct array with...
ungefär en månad ago | 0
| accepted
Select Specific NC Files in Folder Using Date Included in Filename
Something like this should do it matrix = [ 6, 4, 1980 6, 4, 1981 ]; dates = string( datestr( [matrix(:,[3,1,2...
ungefär en månad ago | 1
clarification in for loop with intervals
Someting like this %% indicies = {[55:1:65], [125:1:145], [201:1:225]}; for jj = 1 : numel( indicies ) for kk = indicies...
ungefär en månad ago | 0
| accepted
How to add an element to cell?
One way >> the_cell={'January','March','April'}; >> the_cell = cat( 2, the_cell(1), {'February'}, the_cell(2:end ) ) the_cell...
ungefär 2 månader ago | 0
| accepted
how to change the number that decreases in the array element to the same number, for example 0 (zero)
Is something like this what you are asking for? %% a = [100.001469926008 0.0140073495254864 0.00452326089811489 ... ...
ungefär 2 månader ago | 0
Why I get this error for my code?Error: File: Untitled2.m Line: 10 Column: 8
Replace x2=x1. / max(x1); by x2=x1 ./ max(x1); Be careful with where you add spaces
2 månader ago | 1
| accepted
Convert char to variable
"by means of OOP, to create an app" Object Oriented Design isn't easy and there are many different solutions to a problem. I ...
2 månader ago | 0
| accepted
Importing Data from Text File Loop
First you need to create an array of file specifications. I prefer to use the function dir() glob = fullfile( "C:\Users\nperson...
2 månader ago | 0
Extending the number of terms in a specific sequence.
A copy&paste mistake: synth_f1 = synth_f1 - (1/(n*n))*sin(n*w*t) + (1/((n+2).^2))*sin((n+2)*w*t); % ...
2 månader ago | 1
Accessing subclass methods from abstract superclass
This is not what you ask for, but close. (I don't think what you want is possible with Matlab.) >> child = ChildClass(); >> ch...
2 månader ago | 1
Best way to truncate imported data so the plot displays the area of interest
One simple interactive way (R2018b) %% some data noise = rand( 0.5e6, 1 ); roi = 4.5*sin( (1:5e3)/(20*pi) )'; data = [ noi...
2 månader ago | 0
| accepted
Import hours from a excel file
It can be done with https://se.mathworks.com/help/matlab/ref/duration.html. , but that requires more reading of the documentatio...
2 månader ago | 0
Combining Matrices into one
"I have 20 matrices" are those <68x68 double>? "matrices" implies that. If yes, try %% numfiles = 29; Ws = nan(68,68,numfi...
3 månader ago | 0
What frustrates you about MATLAB? #2
It frustrates me that else if is legal (R2018b) %% if length(c) > 1 d(end + 1,1) = 1; else if length(c) == 1 %#ok<S...
3 månader ago | 2
Select a Web Site
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
Select web siteYou can also select a web site from the following list:
Americas
- América Latina (Español)
- Canada (English)
- United States (English)
Europe
- Belgium (English)
- Denmark (English)
- Deutschland (Deutsch)
- España (Español)
- Finland (English)
- France (Français)
- Ireland (English)
- Italia (Italiano)
- Luxembourg (English)
- Netherlands (English)
- Norway (English)
- Österreich (Deutsch)
- Portugal (English)
- Sweden (English)
- Switzerland
- United Kingdom (English)