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Structure Cut 1.0

  Date Added: April 02, 2013  |  Visits: 244

Structure Cut

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As an example, suppose you had taken 155 seconds of data of the location (x,y,z) of a particle as a function of time (t). It is convenient to put that all into a struct, such as this one:>> datadata = t: [155000x1 double] x: [155000x1 double] y: [155000x1 double] z: [155000x1 double]If you wanted to extract the data taken between 15 and 20 seconds, you would normally need to typeindex = find((data.t > 15) & (data.t < 20));cut_data.t = data.t(index);cut_data.x = data.x(index);cut_data.y = data.y(index);cut_data.z = data.z(index);Tedious, and prone to typos! Using the function "struct_cut" you can do the same thing by just typingindex = find((data.t > 15) & (data.t < 20));cut_data = struct_cut(data,{'t','x','y','z'},index);If you want to apply different cuts to each element of the structure, just typecut_data = struct_cut(data,{'t','x','y','z'},{i_t,i_x,i_y,i_z});where "i_t", "i_x", etc are four different cut arrays you make elsewhere.I tested this with ~10-100 megabyte data sets, and it runs really fast. Hopefully it will work well for larger arrays also, please let me know!

Requirements: No special requirements
Platforms: Matlab
Keyword: Apply Cut Data Element Larger Megabyte Prone Quotstruct Cutquot Struct Cutdata Indexif Struct Cutdata Zwhere Structure Thing Typecut Data Typingindex Typos
Users rating: 0/10

License: Freeware Size: 10 KB
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