Indexing I

Curated by : goc3

Average Problem Difficulty:

Apply MATLAB language fundamentals to solve problems selecting, deleting, or rearranging a subset of elements from a vector or matrix.

Indexing I Master

+50 points

Problem Title	Likes	Solvers
Problem 970. Piecewise linear interpolation Created by: James Tags interpolation, piecewise	9	568
Problem 672. Longest run of consecutive numbers Created by: James Tags vectors, consecutive, repeating	225	6030
Problem 801. Construct an index vector from two input vectors in vectorized fashion Created by: Christopher Tags matrix manipulation, vectorization, poor_test_suite	12	414
Problem 856. Getting the indices from a matrix Created by: Jean-Marie Sainthillier Tags logical indexing	7	671
Problem 307. First non-zero element in each column Created by: Julio Tags matrix, poor_test_suite	6	891
Problem 532. Return unique values without sorting Created by: Aurelien Queffurust Tags unique, sorted	4	954
Problem 875. Return a list sorted by number of consecutive occurrences Created by: Jean-Marie Sainthillier Tags vectors, indexing	9	396
Problem 924. intersection of matrices Created by: Richard Tags matrix, poor_problem_statement	4	608
Problem 895. Generate N equally spaced intervals between -L and L Created by: @bmtran (Bryant Tran) Tags math, wrong_test_suite	6	895
Problem 838. Check if number exists in vector Created by: Nichlas Tags vectors, basic matlab	60	12863
Problem 867. Replicate elements in vectors Created by: Jean-Marie Sainthillier Tags vectors, indexing, basic matlab	13	1180
Problem 963. We love vectorized solutions. Problem 1 : remove the row average. Created by: William Smith Tags speed, vectorized, subtraction	7	843
Problem 885. Create logical matrix with a specific row and column sums Created by: Amro Tags matrix, logical, sum	17	317
Problem 859. Get the elements of diagonal and antidiagonal for any m-by-n matrix Created by: Aurelien Queffurust Tags diagonal, diag, anti-diagonal	11	487
Problem 830. Fill a zeros matrix Created by: Aurelien Queffurust Tags logical operations	9	630
Problem 824. Set the array elements whose value is 13 to 0 Created by: Aurelien Queffurust Tags indexing, logical, logical indexing	14	1389
Problem 795. Joining Ranges Created by: Dirk Engel Tags sorting, matrix manipulation, numeric inputs	9	370
Problem 690. Remove the two elements next to NaN value Created by: Aurelien Queffurust Tags nan, meshgrid, binary operation	9	664
Problem 676. Reindex a vector Created by: James Tags handling vectors, indices	4	720
Problem 652. Put two time series onto the same time basis Created by: Ned Gulley Tags interpolation, time series	6	333
Problem 640. Getting logical indexes Created by: Doug Hull Tags indexing, logical indexing, ml101	8	1136
Problem 589. Matrix indexing with two vectors of indices Created by: Nicholas Howe Tags basic, matlab 101, indexing	4	741
Problem 584. middleAsColumn: Return all but first and last element as a column vector Created by: Nicholas Howe Tags matlab 101, basics	3	616
Problem 576. Return elements unique to either input Created by: James Tags vectors, differences, numeric inputs	6	779
Problem 555. "Low : High - Low : High - Turn around " -- Create a subindices vector Created by: Freddy Tags indexing, colon operator, basic matlab	3	552
Problem 528. Find the largest value in the 3D matrix Created by: Bruce Raine Tags basic matlab, 3d	6	1578
Problem 367. Specific Element Count Created by: @bmtran (Bryant Tran) Tags counting, sum, occurrences	8	898

Recent Group Finishers221

Recent Activity

	Adam submitted Solution 14705758 to Problem 672. Longest run of consecutive numbers 3 hours and 59 minutes ago
	Kaiyue submitted Solution 14705111 to Problem 672. Longest run of consecutive numbers on 11 Jul 2025 at 23:13
	DEEPAK submitted Solution 14703774 to Problem 672. Longest run of consecutive numbers on 10 Jul 2025 at 7:07
	qinran submitted Solution 14703771 to Problem 589. Matrix indexing with two vectors of indices on 10 Jul 2025 at 7:02
	子强 submitted Solution 14702850 to Problem 867. Replicate elements in vectors on 9 Jul 2025 at 1:56

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