Tag: list-manipulation

184 Elegant operations on matrix rows and columns 2012-03-16T08:23:45.897

117 What is a Mathematica packed array? 2012-03-25T21:44:05.453

101 Flatten command: matrix as second argument 2012-01-18T06:52:43.287

74 Does Mathematica have advanced indexing? 2012-03-11T20:21:36.643

74 Partitioning with varying partition size 2012-06-27T08:55:08.970

70 How to find the position of elements in a list satisfying criteria 2012-01-18T18:01:09.583

66 How to efficiently find positions of duplicates? 2013-03-14T19:37:13.107

56 Levels: how do they work? 2012-12-02T15:04:13.553

53 Are there guidelines for avoiding the unpacking of a packed array? 2012-05-07T01:41:44.027

48 Why does MatrixForm affect calculations? 2012-03-16T19:47:50.670

48 How to remove redundant {} from a nested list of lists? 2013-02-25T14:38:01.290

45 How to visualize/edit a big matrix as a table? 2012-04-03T13:35:24.667

45 How to implement the general array broadcasting method from NumPy? 2015-11-11T16:42:52.857

44 Find zero crossing in a list 2012-09-14T15:36:35.043

43 Function in Table 2012-07-01T17:10:38.567

42 How to Delete Elements from List1 appearing in List2? 2012-02-04T08:45:43.627

42 How to apply or map a list of functions to a list of data? 2012-04-03T09:50:20.843

42 Data Table Manipulation in Mathematica 2011-01-24T22:22:25.337

42 How to understand the usage of Inner and Outer figuratively? 2014-08-20T09:55:02.887

41 What is the most efficient way to add rows and columns to a matrix? 2012-01-18T18:37:24.330

40 Sort lists according to the order of another 2012-06-29T20:17:05.427

40 Finding Local Minima / Maxima in Noisy Data 2013-04-23T07:44:07.540

39 Tiling a square 2012-06-14T18:01:18.130

39 Mathematica Destructuring 2012-07-16T23:09:37.043

39 Map a function across a list conditionally 2012-08-23T22:47:03.593

39 How can I make threading more flexible? 2013-04-16T15:37:27.490

38 Removing elements from a list which appear in another list 2013-01-20T08:53:45.217

37 Selecting every n-th element from a list 2014-10-24T16:25:57.040

37 Can Mathematica put these puzzle pieces together? 2016-08-15T20:28:21.633

36 Partition a set into subsets of size $k$ 2012-03-15T19:04:15.743

36 DeleteDuplicatesBy is not performing as I'd hoped. Am I missing something? 2014-07-19T11:26:42.637

36 Is there a built-in equivalent to Python's enumerate? 2015-06-05T22:30:18.533

36 Can we intelligently control evaluation in Thread? 2017-02-25T23:49:52.350

35 Transpose uneven lists 2012-03-28T19:11:57.267

35 Why is multidimensional Reverse slow? 2013-11-25T18:15:09.237

35 Convex optimization 2014-07-31T23:05:48.773

34 How to select minimal subsets? 2012-07-10T16:36:58.107

34 Why do Mathematica list indices start at 1? 2015-06-17T21:52:46.127

33 Clustering of space-time data 2012-03-07T21:20:28.133

33 Sequentially numbering a nested list 2012-03-28T01:22:59.177

33 How to make MapAt work with Span? 2012-05-28T06:59:03.907

33 "Unflattening" a list 2013-08-14T00:42:30.227

32 From a list to a list of rules 2012-03-16T08:35:15.977

32 Insert $+$, $-$, $\times$, $/$, $($, $)$ into $123456789$ to make it equal to $100$ 2012-11-22T03:13:19.867

32 DeleteDuplicates not deleting duplicates 2013-01-23T16:50:44.407

31 Finding all elements within a certain range in a sorted list 2012-02-27T09:18:10.557

30 How to Derive Tuples Without Replacement 2012-02-17T16:37:30.457

30 How do I convert an argument list to a sequence of arguments? 2012-09-19T20:22:30.267

30 Map-Thread-Through-Apply a list of functions onto a list of (lists of) values 2012-09-29T21:20:48.960

30 Filtering beat-to-beat heart rate data 2012-11-14T21:20:33.413

29 Extracting values from nested rules in JSON data 2012-03-17T02:45:47.087

29 K-means clustering 2012-06-25T16:58:57.303

29 Cyclic Take function? 2015-11-11T20:47:28.973

28 Best way to create symmetric matrices 2012-07-04T20:43:10.990

28 Find subsequences of consecutive integers inside a list 2013-04-19T12:14:52.747

28 How can I randomize order of elements in a list? 2013-06-25T03:37:55.613

27 Efficient way to count the number of zeros at the (right) end of a very large number 2012-02-01T03:04:08.690

27 Populating and storing a very large array in Mathematica 2012-05-13T19:50:37.880

27 Using MapAt to map at a particular depth (levelspec) 2012-05-18T19:18:47.177

27 Sorting a list with secondary criterion 2012-08-24T21:57:23.020

27 Data interpolation and ListContourPlot 2012-10-09T02:52:52.297

27 Two ways to map a function on a list: Which one is faster? 2013-10-31T12:25:03.177

27 Undocumented form for Extract 2014-04-16T22:04:05.043

27 Bug in MovingMap (breaking change between version 10.1 and 10.0.2)? 2015-04-15T10:24:02.930

26 Most Efficient Way to Calculate the Product of All Items in a List? 2012-02-05T06:45:18.447

26 Constructing a list that includes a leading zero (01,02,03 ... 55, 56, etc.) 2012-03-19T03:33:52.427

26 Best way to extract values from a list of rules? 2012-09-12T16:23:43.883

26 Using Transpose with a list as the second argument 2012-12-26T17:30:16.013

26 Elegant and fast way to join all string sequences 2013-06-27T08:57:00.470

26 Is there an equivalent to MATLAB's linspace? 2013-11-29T12:15:55.010

25 Permutations[Range[12]] produces an error instead of a list 2012-02-04T03:20:35.403

25 What is the right way to rotate an array? 2012-03-03T00:03:16.867

25 Equating matrices (or higher order tensors) element-wise 2012-03-19T22:18:45.017

25 How do I extract the middle element(s) of a given list? 2013-06-08T07:08:22.540

25 More efficient way of generating list of occurrence counts? 2014-01-14T02:19:16.280

25 Faster position list construction from a "take instructions" list 2015-03-17T22:49:21.113

25 Partitioning a list when the cumulative sum exceeds 1 2016-02-06T12:29:12.013

24 Map and Apply a function on a nested list 2012-04-07T20:21:00.673

24 How to Map a subset of list elements to a function? 2012-04-09T14:31:54.270

24 MapThread over sublists of different length 2012-08-02T06:11:52.787

24 Emulating R data frame getters with UpValues 2012-08-21T22:27:20.987

24 How to zero (or replace) the diagonal of a square matrix? 2015-08-31T06:22:26.867

24 Apply multiple functions to same list 2016-02-18T22:39:52.307

23 Selectively Mapping over elements in a List 2012-02-03T04:14:57.100

23 How can the {x,y,z} points that fall on the outer boundary of a set of values be selected and smoothly surfaced? 2012-03-15T01:53:14.113

23 Is there a bug in Pick? 2012-05-01T11:35:26.040

23 How to monitor the progress of Map? 2012-07-09T22:28:11.107

23 Applying And to lists of Booleans 2012-09-04T16:18:04.403

23 Generating an ordered list of pairs of elements from ordered lists 2012-09-11T09:44:33.057

23 How can I regroup elements in a list into a tree based on their values? 2012-09-19T23:16:58.130

23 How to find the phase difference of two sampled sine waves? 2012-09-24T19:27:14.307

23 Pretty way to group elements at odd and even positions 2013-03-16T11:52:18.220

23 Underlying Algorithms for List Manipulation Functions 2013-08-13T00:37:55.880

23 Looking for a way to insert multiple elements into multiple positions simultaneously in a list 2013-08-18T02:55:00.763

23 Strip waste braces in nested list 2013-10-11T10:16:41.913

23 How to split list into disjoint lists? 2013-11-18T10:26:00.210

23 UnFlatten an array into a ragged matrix 2014-08-26T14:57:41.470

23 Is there a way to riffle more than two lists? 2014-09-05T14:34:33.397

23 Confused about how Partition works 2015-01-29T06:29:37.333