Community Profile

photo

Jonas


Last seen: Today Active since 2020

Programming Languages:
C++, Java, MATLAB
Spoken Languages:
English, French, German

Statistics

All
  • 3 Month Streak
  • Revival Level 2
  • Knowledgeable Level 3
  • Thankful Level 1
  • First Answer
  • First Submission

View badges

Content Feed

View by

Answered
plotting piecewise periodic function
you could generate the values for one cycle and then repeat the values using repmat()

21 dagen ago | 0

Answered
How to store all the A matrix that I have got from every iteration
is y a single value? then A would be a row vector. you can initialize your A before the loop as A=nan(numel(linspace(15,75,5)),2...

21 dagen ago | 0

Question


How to assess frequency stability of sung notes while keeping frequency precision under the possiblity that a vibrato (frequency modulation) is present.
dear community, i have different recordings of a sequency of tones with increasing frequency. this tone sequence is repeated an...

24 dagen ago | 2 answers | 1

2

answers

Answered
How to find zero-state step response from a discrete time system?
if you are interested in the step response, your x(n) is 0 for n<0 and 1 else. y(n) is 0 for n<0. just iterate with a for loop ...

27 dagen ago | 0

| accepted

Question


Why does a sine bandwidth decrease with 1/dur, dur beeing the signal duration
Dear community, recently i was interested in the bandwidth of spectra. That's why i did some plots for signals with a single fr...

ongeveer een maand ago | 2 answers | 0

2

answers

Answered
AND in while loop
it should run if ~(a==1 && b==1) which would equal a~=1 || b~=1

6 maanden ago | 0

Answered
Turning 1s to 0s in a logical vector when element distance between 1s is below threshold
you can try the follwing, but i don't know if it is faster H = [ 1 1 0 0 0 0 1 0 1 0 0 0 1 ]; eraseNAfter=5; Hstr=num...

6 maanden ago | 0

| accepted

Answered
Find indices where runs of zeros and ones ends
i would use H = [0 0 0 0 1 1 1 1 0 1 0 1 0 0 0 0 0]; Hstr=erase(num2str(H),' '); [~,onesEnds]=regexp(Hstr,{'0000+','1111+...

6 maanden ago | 1

| accepted

Answered
Funding a way to describe a curve in x y coordinates
you can use [rows,cols] = find(...) to get the corrdinates of your points. if you want to plot a shape you may have a look into...

6 maanden ago | 0

Answered
calculating weighted sum of values in a matrix
short example for the weighting: each number is multiplied by its column index and row index in=ones(3,2); [X,Y]=meshgrid(1:si...

6 maanden ago | 0

| accepted

Question


Parameters for room impulse response measurements using swept sine
hi all, I want to do get a rough idea of the acoustical impulse response of a room. This room is used by a choir and and I just ...

6 maanden ago | 1 answer | 0

1

answer

Answered
How to chose the correct line style?
looks like you have to add a marker to your plot atcommand, then you do not only have lines but also markers during and the end...

6 maanden ago | 0

Answered
How to adjust the view of colorbar to be the same as contourf
try that adding the colors to the image and add artificial labels using text close all; x = 100*rand(100,100); contourf(x,'Li...

6 maanden ago | 1

Answered
Variables Calculated in Function Somehow Aren't Assigned to Output
looks like your two if statements are never fullfilled, thats why output variables are empty

6 maanden ago | 1

| accepted

Answered
confusion during finding out the mean of a 3d vector
the short answer: your second approach takes mean values of means and the first approach takes the mean value of all elements

6 maanden ago | 0

Answered
How to export coefficients of IIR filter from Filter Designer Tool?
go to Edit -> Convert to single section and then you can export them as numerator and denumerator

6 maanden ago | 0

Answered
To compare to matrices element by element
you can compare matrix A and B directly using typical comparing operators A<B if the question is if there is any element of A ...

6 maanden ago | 0

Answered
How to create a loop until the condition is met?
add the follwing at the beginning infLoop=1; while infLoop infLoop=0; % your code and that to the end o...

6 maanden ago | 0

Answered
How to convert images as array to images and save them in folder
for a matrix A with ynum images in y direction and xnum images in x direction with size height x width you can use C = mat2...

6 maanden ago | 0

Answered
Error scaling x-axis in Matlab?
your neural.Time variable is of type duration, then your xlim values have to be type duration too i guess

6 maanden ago | 0

Answered
Percentage change in the Y axix for unit change in X axis
if you have y data along x you can calculate diff(y)./diff(x) to get the derivate. to get the pointswise percentage value divide...

6 maanden ago | 0

Answered
need help making a 'for' loop to make a new matrix
your loop calculates the maximum value of a character array. since the character 'm' has value 109 (see double('m')) and your ch...

6 maanden ago | 1

Answered
How to assign error bars to a multiple data sets histogram ?
use myBars=bar(1:6,Comparaison); this will give you a 1x2 bar in the variable myBars in this case. One bar object holds ...

6 maanden ago | 1

Answered
Could anyone help me how to find the difference between the two columns in 10x2 double
use diff(A{1,1},1,2) to get all first order differences between columns for every row

6 maanden ago | 0

Answered
i want to make comparison between two matrices elements after creating the two matrices.
you have access to cell entries e.g. by using x{1}(2,3); if your matrices have all the same size i would suggest saving them in...

6 maanden ago | 0

Answered
How to set values to NaN when they AREN'T within the given indices
a=ones(3); [X,Y]=meshgrid(1:3); a(~(X==3 & Y==3))=NaN; which equals a(X~=3 | Y~=3)=NaN;

6 maanden ago | 0

Answered
Delete/remove entire rows and columns containing an element that satisfies a condition (e.g. when the element is an imaginary number)
where=yourMatrix==yourCondition; yourMatrix(any(where,2),:)=[]; yourMatrix(:,any(where,1))=[]; or [row,col]=...

6 maanden ago | 1

| accepted

Answered
What does this mean "No differences to display. The files are not identical, but the only differences are in end-of-line characters."
it's about on how the new line is stored. there are differences between different operating systems (OS). you can read more abou...

6 maanden ago | 0

Answered
how to add a STAR or Triangle shape to plot simply without knowing their vertex?
smth. like that probably Z = peaks; contourf(Z); hold on; plot(15,10,'rp','MarkerSize',15,'MarkerFaceColor','r') al...

6 maanden ago | 1

| accepted

Answered
Producing all combinations of a vector with replacement
you could e.g. use nchoosek(repelem(1:3,2),2) but then you whould have to use unique(...,'rows') on the resulting combin...

6 maanden ago | 1

Load more