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dpb


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4,871 total contributions since 2012

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Answered
Bring some signals to the same start value and end value
Presuming it is to just stretch the shorter to the same time as the longest, something like: y1=randn(size(t1)); Y1=movmean(y1,...

10 hours ago | 0

Answered
How to get specific points for certain value from multiple excel files and insert them into the figure as legend?
t=array2table(data,'VariableNames',{'Time','P1','P2','V','S'}); Vtarget=35.4; ix=interp1(t.V,1:height(t),35.4,'nearest') ix =...

10 hours ago | 0

Answered
How to change cell colors in uitable
You didn't follow the instructions given at the linked-to Answer. The 'BackgroundColor' property applies to the whole table; yo...

11 hours ago | 0

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How can I read multiple mat files and perform ttest2 function?
Arrange the name convention so they will sort in the desired sequence and can process by twos -- then d=dir(fullfile('directory...

16 hours ago | 0

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Answered
Error using ==> asind Argument should be real.
Working as documented... ACOSD() Description Y = acosd(X) returns the inverse cosine (cos-1) of the elements of X in degree...

16 hours ago | 1

Answered
what is the easiest way to reduce the lines in the code below?
data=csvread('flowrate.csv'); % Solution 1: Eliminate unwanted column data(:,6)=[]; % Solution 2: Keep desired columns dat...

18 hours ago | 1

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Answered
Plot specific columns in cell array
for i=1:numel(c28_20chs) hL(i)=plot(c28_20chs{i}(:,3),c28_20chs{i}(:,4)); if i==1, hold on; end if isempty(c28_20chs(i)...

1 day ago | 0

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Answered
Plot not displaying x axis correctly?
Show us code to prove it, but, from the symptom described you wrote something like: x=-7:7; y=yourfunction(x); plot(y) which...

1 day ago | 0

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Answered
or() in categorical variable
Because >> or(1,2) ans = logical 1 >> You're apparently looking for >> ismember(financial_status,[1,2]) ans = ...

1 day ago | 0

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Answered
Retrieving Data from User using data tables in Matlab?
gasesab.Gases=categorical(gasesab.Gases); % turn into categorical variable inGas=listdlg('ListString',gasesab.Gases, ... ...

3 days ago | 0

Answered
Average vector of an array
https://www.mathworks.com/help/matlab/ref/mean.html Look at first example

3 days ago | 0

Answered
Please explain what this error is...
That's pretty straightforward problem and the error is quite simple to fix -- Your function definition line is function [eq1,e...

4 days ago | 1

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Answered
My polyfit function is displaying NaN
>> log10(0) ans = -Inf >> You can't do that!!! plot() and friends silently ignore NaN, +/-Inf so you don't see the zero ...

4 days ago | 0

Answered
Object oriented Programming problem
Don't need to save in the function with that name, just the output variable name chosen for the return value in the function def...

4 days ago | 1

Answered
I want to Display two matrices next to each other with some space between them
disp(table(Iapp,I,'VariableNames',{'Approximated','Exact'})) Salt to suit...

4 days ago | 1

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Answered
Trying to print a vector.
fprintf(doc,['k0 = ' repmat('%.3f ',1,numel(k0)) '.'],k0);

4 days ago | 1

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Answered
How to import Table and column header from two diffrent files?
W/o an example to confirm but from the description alone something like: tData=readtable('thedatafile.csv'); hdrs=readcell('th...

4 days ago | 0

Answered
Change colors of individual strings of a figure
Well, it'll take a fair amount of detailed coding, but it can be done...as a crude illustration try the following code... close...

4 days ago | 1

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Answered
Why is readcell not functioning as expected?
If the creating and reading routines don't have some sort of semaphore arrangment to let the one know the file is closed it's po...

5 days ago | 0

Answered
Axis ticks and colorbar labels in bold (heatmap)?
Another case where TMW is too clever by far in creating an opaque graphics object -- you have to use the hidden properties to fi...

5 days ago | 0

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Answered
Round Datetime to certain minutes
interp1 will work... dt=datetime(2020,11,18,00,1+[0:30].',0); % sample datetime array dt20=datetime(2020,11,17,0,[20:30...

6 days ago | 0

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Answered
How do i add a seed
See <Controlling-random-number-generation> for discussion and links to rng function if it is needed to modify default seed to be...

7 days ago | 0

Answered
How to read gaps from an Excel in MATLAB
It's readmatrix probably that's the problem as it is designed for matrix input and you have what looks like two (or several) mat...

7 days ago | 0

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Answered
Reduce loops to Vectors in Viola Jones Algorithm
I don't have the time right now, but the two inner loops should be replaceable by filter2 or conv2. NB: filter2 has an internal...

9 days ago | 0

Answered
How would I be able to output ID's that satisfied an if statement?
Use logical indexing, "the MATLAB way". LIMIT=50; % don't put magic numbers inside code; use variables so can change ...

14 days ago | 0

Answered
Two cell arrays indexing
C=cellfun(@(a,b)b(a),A,B,'UniformOutput',false); It's just logical indexing in a background loop under the guise of cell addres...

15 days ago | 0

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Answered
How to plot over histogram function
>> figure(2) [h] = histogram(norm,100); ... Error using norm Not enough input arguments. >> Your code even if fix the abo...

15 days ago | 0

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Answered
Changing the range of values in a Matrix
E=2*pi/3500*E-pi;

15 days ago | 0

Answered
Numeric miscalculation on the 14th decimal place
MATLAB used double precision floating point for calculations which is good to roughly 15 decimal digits. Hence, when you subtra...

15 days ago | 2

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Answered
Please answer! How to use an if function effectively?
colmn_analyze=4; % desired column to compare colmn_target=2; % desired column to set valLimit=2; % limiting val...

15 days ago | 1

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