Community Profile # dpb

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Multiple axes in a subplot
It's a pain -- MathWorks doesn't think you're supposed to ever want to do that; there are no builtin tools to do it. There may ...

en dag ago | 0

how to plot each bin of data individually?
OK, here's another example; I'll add it as its own Answer -- carrying on from the above uBin=unique(tD.Bin); for i=uBin(:).' ...

en dag ago | 1

Reshaping array with specific order
Can't be done with only reshape. You have only 10 elements in A and the requested output array requires 20. OTOH, it's easy en...

en dag ago | 0

Convert cell array to excel - problem with nested cells
Try something like l=0; for i=1:size(M2,1) for j=1:size(M2,2) l=l+1; writecell(M2(j,i),'M2.xls','Range',"A"+...

2 dagar ago | 0

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Removing automatic variable names in array2table or writetable and adding some text to the header of output file
As @Ive J points out, define variable names as desired. NB there's no need for intermediate variables here, either--if you alre...

2 dagar ago | 0

how to plot each bin of data individually?
As per usual, would be easier to demonstrate with some real data to work with...but tD=table(repmat([0:23].',4,1),randi([150 20...

2 dagar ago | 0

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Why does the unique() function give an unexpected extra output here?

2 dagar ago | 1

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Excel MMULT on MATLAB for different matrix dimensions.
MATLAB being defined as the MATrix LABoratory follows conventional matrix algebra rules -- >> A=[0.29;-1.55;2.09;0.782]; >> R=...

3 dagar ago | 1

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Array indices must be positive integers or logical values.
In ... i=0; while dt<ts; d1=g-0.5.*rho.*V0.^2*(s/m).*Cd; phiAvg=d1; V(i)=V0+dt.*phiAvg; V0=V; t(i)=t...

3 dagar ago | 1

How to fix: Index Exceeds Matrix Dimensions.
>> w1{1}=fix(randi([-10000,10000],3,1)); >> whos w1 Name Size Bytes Class Attributes w1 1x1 ...

3 dagar ago | 0

Replace text in a struct with new values
The problem is the string you're building for the substitution doesn't match the actual string in the struct substring owing to ...

3 dagar ago | 0

different number of delimiters error using readtable function
Use import options object -- although to write a fully generic import code you'll have to scan the file to find the number of he...

4 dagar ago | 1

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How can I include absent group names in table grouping results?
Well, unless the data are in the table, there's not going to be anything for groupsummary to operate over to tell it those other...

4 dagar ago | 0

I can't understand the following MATLAB code documentation
This isn't documentation, this is actual MATLAB code. The first section is a script; the second is a function which is called b...

4 dagar ago | 1

How to show that calculation is going in MATLAB App
An outline of the progress dialog implementation I used for one app... % Button pushed function: UpdateButton function ...

7 dagar ago | 0

How to make an if-statement that finds whether a 1x5 column has 4 of the rows the value 0?
Just a somewhat pedantic comment on details of notation first -- If the matrix is 1x5, it would be matrix = [0 0 0 241 0] inst...

8 dagar ago | 0

How to extract data stored in a matrix and in a specific range of columns whose number is stored in another matrix?
It would be much simpler if you would use a table for each variable and include the ParticipantID as a variable instead. Howeve...

13 dagar ago | 0

Matlab default font monospace is not a wise choice
Can't say as it's been a problem for me, no... But, you can change it to anything installed on your system -- go to Preferenc...

13 dagar ago | 0

Converting 1D indexed array to 2D matrix
You don't need to convert the linear addresses to indices to assign them to the array. If you have, indeed, segregated the alti...

15 dagar ago | 0

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How to get such legend in MATLAB?
Use the 'DisplayName' property for the desired line types to be plotted -- you'll need two lines drawn with just the solid line ...

16 dagar ago | 0

How to sort the rows of a cell?
s=sort([x{:}]); % where x is the cell array

16 dagar ago | 0

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Why is signal amplitude so low after applying FFT?
Several issues here -- the first being the RMS value masks the signal amplitude with the DC value unless you first detrend the t...

17 dagar ago | 0

Bar chart samples are shuffled
As @Star Strider says, categorical variables are not ordinal by default and are valued by lexical sorting. To fix X = {'Pristi...

18 dagar ago | 1

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Selecting random cells in a matrix without repetition
N2Choose=20; R=M(randperm(numel(M),N2Choose)); ERRATUM Stupid auto-complete put the silly parens in instead of letting me whe...

18 dagar ago | 0

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How do i add a for loop if command to a pre existing table
Begin learning to use MATLAB vector operations from the git-go -- naming variables sequentially with a numeric suffix is almost ...

19 dagar ago | 1

Feeding index returned by find in another matrix
>> a=[NaN,NaN; NaN,2; 11,NaN]; >> a a = NaN NaN NaN 2.00 11.00 ...

19 dagar ago | 0

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Insert "epsilon dot" in a figure title with tex interpreter (not latex)
No; the MATLAB implementation of TeX uses the defined special characters and the limited modifiers of ^ and _ for super/subscrip...

20 dagar ago | 0

Put axis label in their respective middle (3D plot)
... mesh(x,y,z); hXL=xlabel('time[sec]'); % default label, save handle hXL.Position=hXL.Position+[0.5 0 0...

20 dagar ago | 0

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Question

Setting focus in AppDesigner
I'm setting a TextArea object to be editable with a menu selection to allow a field to be updated by the user. The callaback to...

21 dagar ago | 1 answer | 1