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Thomas


Stockholm University

Last seen: 7日 前 |  2012 年からアクティブ

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Professional Interests: TEM, Image analysis, EELS, Spectral Imaging, Photography

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質問


Shuffle method on custom datastore written for a single binary file
I am writing a custom datastore and am seeking some assistance. My datasets consist of stacks of 2D images (frames) stored sequ...

約4年 前 | 1 件の回答 | 0

1

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質問


Visualizing image deformation (object shrinkage)
I have two images of the same, complex object taken at two different times. The object has shrunk between images and I need to ...

4年以上 前 | 1 件の回答 | 0

1

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質問


Smooth interpolation for warping an image using a deformation map
I have a series of 2D images that I need to register similar to the one below. The registration is neither geometric nor ri...

6年弱 前 | 0 件の回答 | 0

0

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解決済み


We love vectorized solutions. Problem 1 : remove the row average.
Given a 2-d matrix, remove the row average from each row. Your solution MUST be vectorized. The solution will be tested for ac...

8年弱 前

解決済み


Matrix indexing with two vectors of indices
Given a matrix M and two index vectors a and b, return a row vector x where x(i) = M(a(i),b(i)).

8年弱 前

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Getting logical indexes
This is a basic MATLAB operation. It is for instructional purposes. --- Logical indexing works like this. thresh = 4...

8年弱 前

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Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

8年弱 前

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Return elements unique to either input
Given two numeric inputs a and b, return a row vector that contains the numbers found in only a or only b, but not both. For ex...

8年弱 前

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Replicate elements in vectors
Replicate each element of a row vector (with NaN) a constant number of times. Examples : n=2, A=[1 2 3] -> [1 1 2 2 3 3] n=0...

8年弱 前

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Set the array elements whose value is 13 to 0
Input A either an array or a vector (which can be empty) Output B will be the same size as A . All elements of A equal to 13...

8年弱 前

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Find the largest value in the 3D matrix
Given a 3D matrix A, find the largest value. Example >> A = 1:9; >> A = reshape(A,[3 1 3]); >> islargest(A) a...

8年弱 前

解決済み


Check if number exists in vector
Return 1 if number _a_ exists in vector _b_ otherwise return 0. a = 3; b = [1,2,4]; Returns 0. a = 3; b = [1,...

8年弱 前

解決済み


Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

8年弱 前

解決済み


Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

8年弱 前

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Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Examp...

8年弱 前

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Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

8年弱 前

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Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

8年弱 前

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Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

8年弱 前

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Is my wife right?
Regardless of input, output the string 'yes'.

8年弱 前

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Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

8年弱 前

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Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

8年弱 前

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Add two numbers
Given a and b, return the sum a+b in c.

8年弱 前

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Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

8年弱 前

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Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

8年弱 前

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Use griddedinterpolant to interpolate over missing values
Both of the suggestions by Walter and Guillaume worked very well for me. If I choose to use the exact syntax I suggested above,...

8年弱 前 | 1

質問


Use griddedinterpolant to interpolate over missing values
I would like to use griddedInterpolant to interpolate over datapoints that I need to discard from an N-dimensional matrix. Spec...

8年弱 前 | 3 件の回答 | 0

3

回答

解決済み


Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

約8年 前

回答済み
How can I insert the *contents* of a string variable directly into my code?
This solution worked very well for me, thanks! I had to make one minor modification. I should enclose the string in double quo...

約8年 前 | 0

質問


How can I insert the *contents* of a string variable directly into my code?
I am working with git version control and would like to use the following function to commit my changes: function gitCommit...

約8年 前 | 3 件の回答 | 0

3

回答

質問


Improving the consistency of the NNMF function
I'm attempting to use non-negative matrix factorization on a matrix containing spectral information (A). Whenever I run the nnm...

約10年 前 | 1 件の回答 | 0

1

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