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Guillaume


University of Brighton

6,410 total contributions since 2012

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Answered
Cell contents reference from a non-cell array object from a txt file
I would suspect that it is a text file and that your code was meant to use textscan instead of fread. textscan would return a ce...

1 day ago | 0

Answered
Is it possible to assign the constant value of a function handle to a variable?
You don't need to use feval to invoke a function handle with no inputs, just use some empty brackets to make it clear you want t...

1 day ago | 3

Answered
Write a function called max_sum that takes v, a row vector of numbers, and n, a positive integer as inputs. The function needs to find the n consecutive elements of v whose sum is the largest possible.
Don't use the question title to post the content of your assignment as that get truncated. Assuming that your assigment is to f...

8 days ago | 2

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Answered
splitapply cumsum with non-scalar result
The error message tells you exactly what to do: splitapply(@(x){cumsum(x)}, inputData, G) This will output a cell array, ...

8 days ago | 0

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Answered
Expressing an even number in powers of 2 and a multiple of an odd number.
Can't you just use a loop? function [exponent, multiplicand] = decompose(number) validateattributes(number, {'numeric'}, ...

8 days ago | 0

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Answered
code is too difficult to understand
I'm not sure what you're looking for here. We're not going to teach you matlab, so perhaps you should grab a book and/or read so...

8 days ago | 0

Answered
Extract array information from date and create cell
dates = datetime(datestr(dates)); %... datenumber = datenum(dates); The trip through datestr is unnecessary. And converting a...

8 days ago | 0

Answered
merging 8 bit planes into single plane by combining the values of each bit into 8-bit value for each pixel
No, imfuse will not work. imfuse has no concept of bits. Your question is actually very puzzling. You already know how to combi...

8 days ago | 0

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Answered
Reading uint16 image and converting to uint8 problem
As far as I can tell, there is nothing wrong with the way matlab decodes your image. It genuinely have very little contrast with...

9 days ago | 0

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Answered
How do I make a function accept a vector as an input
If you want to pass the first, second, third, or nth element of the input vector to your function, then tell matlab you want the...

9 days ago | 1

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Answered
How to get the intersecting coordinates of a binary image?
You would use the 'branchpoints' operation of bwmorph to isolate the intersections, after you've skeletonised the image with the...

9 days ago | 0

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Answered
how to optimise the code with cell?
Why are you using cell arrays in the first place? It's just slower and has more overhead than matrices. You can just create your...

9 days ago | 0

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Answered
How to segment a paragraph into lines and words?
Of course it's possible to segment the file. It's fairly trivial as well. Just close the image (if you're working with white tex...

9 days ago | 0

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Answered
Is is necessary to use set/get functions?
It's not been required since R2014b, where all graphics handles became proper objects. Now, it is just an alternative way of set...

9 days ago | 0

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Answered
Error for C(i,:)
As per my comment to your question, clearly your code is full of bugs. To find out how your code actually behaves as opposed to ...

10 days ago | 0

Answered
Dicomwrite, how to overcome limits of 32-bit?
As far as I know, the 2^32-1 limit is intrinsic to the DICOM format. The length in bytes of all objects is always encoded as a ...

10 days ago | 0

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Answered
Categorising coordinates into a table
Is there any reason to store your data as a cell array instead of a 3D matrix (or two 2D matrices) which would make your life si...

10 days ago | 1

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Answered
How to fill a 1024 point array with two cycles of a cosine wave?
Knowing that the cycle length of a cosine wave is , what is the length of two cycles? Once you know that, use linspace to gener...

10 days ago | 0

Answered
How do I extract numbers from mixed data to create a table?
Your log1.txt file is encoded in UTF8 and starts with a BOM (a bit unusual). Reading as text without telling matlab it's utf8 ma...

10 days ago | 0

Answered
Rearranging rows side by side based on a column value
I'm assuming that status 1 only happens once per ID. I'm also assuming that all rows of an ID are together. t = readtable('Inpu...

10 days ago | 0

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Answered
Combine Vectors Into Matrix - NOT ALL Possible Combinations from baseline
allpoints = {[1 2 3 4], [7 8 9], [10 11 12 13], [14 15 16]}; %can be as many vectors of any length baseline = [1 7 10 14]; ass...

10 days ago | 1

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Answered
Get Blob from Firebird SQL Database
So, what you're getting back is a java object of type org.firebirdsql.jdbc.FBBlob. You can use the methods of that object to get...

10 days ago | 0

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Answered
How to put each group of cells in the same row ?
reshape(A, 16, [])' reshapes your cell array in columns of 16 rows (since matlab is column major). Then transpose to have rows ...

10 days ago | 1

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Answered
Reading Specific Data Into MATLAB from an Excel File
One way: opts = detectImportOptions('Static_pose.xlsx'); %should automatically figure out what part of the excel file is a tab...

10 days ago | 0

Answered
Intersection of two matrices based on 1st column
[~, rowstokeep] = setdiff(B(:, 1), A(:, 1)); %get index of rows in B whose 1st column is not in 1st column of A C = B(rowstoke...

10 days ago | 0

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Answered
Warning while opening matlab R2018b
The most important part of the error is probably: Warning: Function assert has the same name as a MATLAB builtin. We suggest yo...

10 days ago | 0

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Answered
How to efficiently replace NAN with Numirical value a reference vector
Certainly, the inner for loop is unnecessary (and the find, use logical indexing). Refr=[1 20 1 4 5 2]; WithNan=[1 NaN 1 3 2 ...

13 days ago | 3

Answered
To change 12x12 matrix to 6X12
No need for a loop: m = randi([0 100], 12) %demo matrix newm = permute(sum(reshape(m.', size(m, 2), 2, []), 2), [3 1 2]) B...

13 days ago | 1

Answered
Removing zeros in excel
No loop, no cellfun: filetoedit = 'C:\somewhere\somefile.xlsx'; [data, ~, ascell] = xlsread(filetoedit); ascell(~conv2(data...

14 days ago | 1

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Answered
undefined function or variable matlab even the variable excite
A will only exist if both n and m are greater than 2. So if matlab tells you that A does not exist we can safely assume that eit...

14 days ago | 0

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