Jan Siegmund
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Accept 2 answers given by other contributors
Awarded to Jan Siegmund on 15 Feb 2022
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Awarded to Jan Siegmund on 02 Sep 2020
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Feeds
Suppress Command Window Output using SYSTEM command
The accepted answer unfortunately is OS specific. A MATLAB only solution would be: [returncode, outputMessages] = system('xfoil...
etwa 3 Jahre vor | 2
How do I use a class property validation function with a dynamic argument?
The problem is, that MATLAB classes only support constant arguments on property validation. However function arguments can be v...
etwa 4 Jahre vor | 0
| akzeptiert
Frage
How do I use a class property validation function with a dynamic argument?
In Matlab OOP, I wanna use a function like mustBeEqualSize(a,b) from the Examples on function property validation to validate a ...
etwa 4 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Efficient number occurence count
I want to efficiently count the number of occurences of numbers between 1-numel(num) in a Matrix. I came up with two options for...
etwa 4 Jahre vor | 3 Antworten | 1
3
AntwortenHow to put cell array in sprintf?
If using multiple different cells: %% Edited % var = {'a','b','c','d','e'}; % num = {1,2,3,4,5}; % s = strjoin(cellfun(@(v...
etwa 4 Jahre vor | 0
How to indicate that GUI is busy running?
Users that looked for a waitbar style solution should have a look at https://de.mathworks.com/help/matlab/ref/uiprogressdlg.html...
mehr als 4 Jahre vor | 0
How to support default parameter in MATLAB FUNCTION ?
The Answers are not up to date. Modern MATLAB supports the arguments Block: function out = foo(in) arguments in(1...
mehr als 4 Jahre vor | 21
Multiple numerics as one map key / Merge Objects based on parameters
The only keytype which can hold two doubles is the character key type. So one may use char as key type and then simply function...
mehr als 4 Jahre vor | 0
| akzeptiert
Frage
Multiple numerics as one map key / Merge Objects based on parameters
I want to use two numerics as a single key for a map to merge similar objects of a class. How can I do that? My class looks lik...
mehr als 4 Jahre vor | 1 Antwort | 0
1
AntwortHow do I convert a numerical vector into a comma-delimited string?
Here is another oneliner: strjoin(cellstr(num2str(n')),',') Testing all four types with a script n = randi(100,[1 100]); tic...
mehr als 4 Jahre vor | 4
How do I limit the values in an array?
There is also a matlab function doing this: A = min(A,1); It takes A if A is the minimum of the two and 1 if 1 is the minimum ...
mehr als 4 Jahre vor | 2
How to create a checkerboard matrix without inbuilt function.
For an even sized checkerboard: rows = 6; cols = 4; normal = repmat(eye(2,'logical'),[rows/2 cols/2]); % or inverted = repm...
mehr als 4 Jahre vor | 0
How to write an efficient overloaded subsasgn?
I may have a solution but do not know if this covers all cases: classdef Subsasgntest properties val e...
mehr als 4 Jahre vor | 0
| akzeptiert
Frage
How to write an efficient overloaded subsasgn?
I want to write a class which defines subsasgn. The class holds a numeric value val and the subsasgn should target val only. I ...
mehr als 4 Jahre vor | 1 Antwort | 1
1
Antwortcombine columns with different lengths to create a matrix
If the input data is a cell array of column vectors, you might consider this: a = {ones(5,1) ones(8,1)}; %test data len = ma...
mehr als 4 Jahre vor | 1
horzcat different size rows; zero padding
If the input data is a cell array of column vectors, you might consider this: a = {ones(5,1) ones(8,1)}; %test data len = max(...
mehr als 4 Jahre vor | 0
Regex: How do I match an empty string?
Use regexp(a,'^$','emptymatch')
mehr als 4 Jahre vor | 0
| akzeptiert
Frage
Regex: How do I match an empty string?
Consider the following string: a = ''; How can I match it using regexp?
mehr als 4 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Override subsasgn of MATLABs double?
Consider the following statement: x = [1 2;3 4]; y = myclass([5 6]); x(1:2) = y MATLABs default behavior is: x(1:2) = ... r...
mehr als 4 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
Does MATLAB call the double constructor on a=a+1?
I want to overload the double class and add some properties to it. And i also have to override the plus function. A similar cod...
mehr als 4 Jahre vor | 1 Antwort | 0
1
Antwort[Fixed Point Converter] 1000 bit fraction length at 2^x if x is loaded from .mat file?
A temporary fix is using bitsll as recommended here: For efficient HDL code generation, use the Fixed-Point Designer ...
mehr als 4 Jahre vor | 0
| akzeptiert
Frage
[Fixed Point Converter] 1000 bit fraction length at 2^x if x is loaded from .mat file?
I got a problem with code like this in the fixed-point converter: dut_tb.m dut(8); dut.m function out = dut(in) S = cod...
mehr als 4 Jahre vor | 2 Antworten | 0
2
Antworten[HDL Coder] Ridiculous RAM usage + How to activate parallel processing?
This memory usage is not sane and it is the result of not properly optimized MATLAB code for HDL conversion. I tried to run code...
mehr als 4 Jahre vor | 1
| akzeptiert
Odd and even numbers
Fancy answer: m = [1 2 3;4 5 6]; isodd = bitget(m,1) however this is slower as rem
mehr als 4 Jahre vor | 0
Frage
[HDL Coder] Bug: Fixed point converter does not descend into System Objects
Can I somehow tell the fixed point converter to explicitly convert a certain function? This would temporarily fix the following ...
mehr als 4 Jahre vor | 1 Antwort | 0
1
AntwortFrage
[HDL Coder] Ridiculous RAM usage + How to activate parallel processing?
On my project, the HDL Coder uses ridiculus amounts of RAM. On my 8GB Windows 10 Notebook, it chews through it until after 3min ...
mehr als 4 Jahre vor | 1 Antwort | 0
1
Antwort[Coder] Which types are supported for constant folding?
I did understand constant folding wrong: I thought one must help the coder as follows: a = coder.const(my_prod(3,2)); , becau...
mehr als 4 Jahre vor | 0
| akzeptiert
Fixed point converter: Ignore code part.
Ignoring a code part in fixed point converter is currenty(R2019b) not supported. Comment out the section as a temporary fix.
mehr als 4 Jahre vor | 0
| akzeptiert
[HDL Coder]: BUG?/ Function Location missing in Error Report -> find variable by name?
As long a the location of error lines is not shown correctly in MATLAB HDL Coder, assign the top function call as a var = cod...
mehr als 4 Jahre vor | 0
| akzeptiert
Frage
[HDL Coder]: BUG?/ Function Location missing in Error Report -> find variable by name?
In HDL Coder, I want to locate, where errors are occuring. But the HTML Report just gives me the Error Location in the top comp...
mehr als 4 Jahre vor | 3 Antworten | 0
3
Antworten
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