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Sorting cell for only dublicate values
Alternate approach to Jan's using features of categorical arrays (which the IDs logically are) % some dummy data of the same ty...
1 jour ago | 0
| accepted
I have a function (ex. adaptive) in a for loop which has two arrays as output. I want to save all the outputs in a single matrix. it can just save the last vector
You have to index the out arrays on the LHS of the assignment or MATLAB will, as you've observed, overwrite the whole variable o...
4 jours ago | 0
| accepted
How can I index a duration variable
Always much easier if you attach the actual code you've used to get to this point and a little bit, at least of the data array. ...
4 jours ago | 0
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How do I pull out from a table, the total mean of one item based on a particular condition (for several subjects), and then compute the difference in mean values?
tMEANS=rowfun(@mean,tData,'GroupingVariables'{'ConditionZ'},'InputVariables','ItemA','OutputVariableNames','GroupedMeans'); See...
5 jours ago | 0
Help creating loop that converts text to numbers
>> A='Now is the time...'; >> format short >> disp(double(A)) 78 111 119 32 105 115 32 116 104 101 ...
5 jours ago | 0
Removing quotations from table display
It's more a sanity check for the user to make sure their values are correct for what they expect. And there's where the purpose...
6 jours ago | 0
fwrite ascii output error
I see no such thing... >> fid=fopen('test2.dat'); fread(fid,'*int16') fid=fclose(fid); ans = 2×1 int16 column vector ...
6 jours ago | 0
How to reform cell into a vector of strings and text
Two of many ways to deal with the cellstr -- As string array >> S=string(split(C,',')); S=S(S~="") S = 6×1 string array ...
6 jours ago | 0
How do I swap 2 rows of a cell array?
One way... >> C=num2cell(randi(10,3,2)) C = 3×2 cell array {[5]} {[1]} {[9]} {[5]} {[6]} {[5]} >> ...
6 jours ago | 0
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how to find the nearest value?
The builtin way in MATLAB is interp1 >> A=[1:6]; >> B=flip(A)+0.1; >> posn=[10:10:60]; >> C=posn(interp1(B,A,A,'nearest','ex...
6 jours ago | 0
Problems with function num2str
Well, having a file helps (as always)... >> DatosInfo=ncinfo('..\Answers\DatosMarzoD1.nc') % see what's in the file... DatosIn...
6 jours ago | 1
| accepted
How to put endpoint on Bar graph
Like maybe? There's a klunky example at the doc for bar, but it is far simpler than the multi-step illustration to write it ...
7 jours ago | 0
How to calculate standar deviation and trend in each row of data
The input arguments for std include a flag for the weighting for the divisor and/or the option to compute a weighted standard de...
7 jours ago | 0
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 ...
9 jours 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(:).' ...
9 jours 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...
9 jours 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"+...
10 jours ago | 0
| accepted
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...
10 jours 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...
10 jours ago | 0
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Why does the unique() function give an unexpected extra output here?
>> load ..\Answers\datestrings_of_problem_times.mat >> whos d* Name Size Byte...
10 jours ago | 1
| accepted
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=...
11 jours ago | 1
| accepted
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...
11 jours 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 ...
11 jours 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 ...
11 jours 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...
12 jours 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...
12 jours 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...
12 jours 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 ...
15 jours 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...
15 jours 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...
21 jours ago | 0
