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Jonas


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81 2020 이후 총 참여 횟수

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Two Same max Values of a Array
get the maximum value and search for entries equal to that value maxEntriesIdx=find(A==max(A)); if you want to increase ...

약 12시간 전 | 0

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Is there a simple way to omit legend entries?
you can do your normal graph plotting and one of your reference lines and then you can set the auto update property of the legen...

약 13시간 전 | 0

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Finding angle between 2d vectors with a four quadrant approach
have a look into the atan2() function which takes the y and x coordinate of your vector

3일 전 | 0

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Hi everyone, can anybody help me to plot?
do you execute your code in a script that is called 'plot'? then it will be difficult to use the default matlab plot command ins...

4일 전 | 0

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Choose the lowest value and jump into the correct if
use something like [~,idx]=min([A B C]); if idx==1 % A smallest elseif idx==2 % B smallest else % C snal...

6일 전 | 0

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finding closest value in specific row and columm and take value intersecting these.
first thing: you confused rows and columns, you have 5 rows and 4 columns, not the other way around (at least it appears like th...

8일 전 | 1

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What fuction can I use for represente time as an angle?
first thing: you can calculate all your angles directly using the formula in your for loop: angles=latencies*360/interval; ...

9일 전 | 1

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Invalid expression. Check for missing multiplication operator, missing or unbalanced delimiters, or other syntax error. To construct matrices, use brackets instead of parenthe
rxLocations(:,1) is valid, but after that you give just index with (:,2) the variable is missing here, maybe it should be rxL...

9일 전 | 0

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Plotting Confidence Band on plotted regression line.
you should be able to solve your problem using polyfit and polyval function, <https://de.mathworks.com/help/matlab/ref/polyval.h...

9일 전 | 0

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Logarithmic plot of function using pchip
try interpolation in logarithmic space: Z1 = 10.^(interp1(dil2f, log10(dil2an), xi,'pchip')); or Z1 = 10.^(pchip(di...

9일 전 | 0

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How to accumulate different structs, with same fields beneath one another
i am not sure how exactly your multiple structs are saved, but if you saved them in a multidimensional struct, you can get all f...

13일 전 | 0

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Shift n rows in column to next column by a grouping variable
quick and dirty example: a=(1:24)'; grpSize=4; mat=nan(numel(a),numel(a)/grpSize); mat(:,1)=a; for grpNr=1:nume...

15일 전 | 1

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Edge/Boundary extraction from the image
you can e.g. convert it to grayscale and then use the edge() function. there are many parameters you can try after you got th...

16일 전 | 0

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How to capture the lateral and angular position between a reference image and a shifted (and/or) turned copy of the same image using the correlation of images using matlab? What program should be used for this?
use xcorr2 for finding shifts between two images <https://de.mathworks.com/help/signal/ref/xcorr2.html#buwe7f3> if you hav...

17일 전 | 0

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How to create a biphasic rectangular pulse train?
probably something like that: fs=100000; %sampling freq in Hz pulsesPerS=5000; signalDuration=3; % in seconds amp...

18일 전 | 1

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how wa can discard 75% of small coefficients after get the DCT conversion of each image block?
use the Y = prctile(block,75,'all') command to get the 75% percentile, you can then set all values smaller than this th...

18일 전 | 0

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How to Figure Phase Spectrum of a Signal?
looks good, there was a similar post in <https://de.mathworks.com/matlabcentral/answers/308872-how-can-i-determine-phase-in-fft...

18일 전 | 1

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delelte certain string data from cell
use names(ismember(names(:,1),'Australia'),:)=[];

19일 전 | 0

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how to title of subplot
call title() after plotting (after bar() ), that should work the normal way

19일 전 | 0

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How to remove NaN value from front part (first column) of raw matrices.
can't check your files at the moment, but it should be something like that: for fileNr=1:6 load(['S' num2str(fileNr)]...

19일 전 | 1

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How can I modify figure's property inspector elements through code?
you can set the Font by specifying it in the label commands, e.g. ylabel('y-axis','FontName','This is the name of your font...

20일 전 | 1

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How can I write the name of file into entry of matrices?
you can't save numbers and strings on the same matrix, if you want to do that use a cell array. to achieve this use e.g. D{...

20일 전 | 0

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How to take mean of 3D matrices without storing them
sum them up one by one, this way you have one big summing matrix and the current loaded matrix. after summing you can divide all...

21일 전 | 0

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Getting mean row vector from a cell array of row vectors of the same size
so if i understood you correctly each cell contains histogram values with 256 bins each and you want to know mean count for each...

21일 전 | 0

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How to erase grid line
there are also minor grid lines. use e.g. set(gca,'xminorgrid','off') to remove the minor x grid

22일 전 | 0

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How do I plot 3d graph ?
what about plot3(x,y,z) without the meshgrid?

24일 전 | 0

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Split a Number Sequence into n equal parts and then replacing the values in the matrix.
i suggest normalizing the matrix by dividing all elements through the biggest value you already have and multiply it afterwards ...

25일 전 | 1

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For loop through a cell array
if you want to do a specific operation on each cell, then have a look into the cellfun() function

27일 전 | 0

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I want to normalize just one column, how do i do that ?
use data(:,12)=data(:,12)/max(abs(data(:,12))); if your data in column 12 is not negative, then you can leave out the ab...

27일 전 | 1

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1/3 octave band from wav. file
have a look into following matlab article, it has nice examples, explanations and code <https://de.mathworks.com/help/audio/ug/...

27일 전 | 0

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