size

Return size of geographic or planar vector

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Syntax

sz = size(v)
sz = size(v,dim)
[m, n] = size(v)

Description

sz = size(v) returns the vector [length(v), 1].

example

sz = size(v,dim) returns the length of geographic or planar vector v in the dimension specified by dim.

[m, n] = size(v) returns the length of v for m and 1 for n.

Examples

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Open Live Script

Create a mapshape vector from a structArray.

structArray = shaperead('worldrivers.shp');
ms = mapshape(structArray)
ms = 
 128×1 mapshape vector with properties:

 Collection properties:
    Geometry: 'line'
    Metadata: [1×1 struct]
 Vertex properties:
  (128 features concatenated with 127 delimiters)
           X: [126.7796 126.5321 126.3121 126.2383 126.0362 NaN NaN 126.0362 125.1356 124.7906 124.1364 123.7004 123.4859 123.2781 123.0678 NaN NaN -134.0218 -134.0882 -134.3638 -134.4989 -134.4732 -134.4100 NaN NaN -135.5902 -135.2130 … ] (1×5542 double)
           Y: [73.4571 73.0669 72.8343 72.6010 72.2894 NaN NaN 72.2894 72.3784 72.4620 72.5086 72.5691 72.6517 72.8635 72.8684 NaN NaN 69.4726 69.3400 69.2873 69.1939 68.9479 68.8795 NaN NaN 68.9858 68.9367 68.9995 69.0016 68.8795 NaN NaN … ] (1×5542 double)
 Feature properties:
        Name: {1×128 cell}

Get the size of the mapshape vector.

sz = size(ms)
sz = 1×2

   128     1

Input Arguments

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Geographic or planar vector, specified as a geopoint, geoshape, mappoint, or mapshape object.

Dimension to measure length of vector v, specified as a positive integer scalar.

Data Types: single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 | logical

Output Arguments

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Size of vector v, returned as a nonnegative integer scalar or a two-element vector.

  • When dim is not specified, sz is the two-element vector [length(v), 1].

  • When dim is 1, sz is a scalar equal to the length of v.

  • When dim ≥ 2, sz is 1.

Data Types: double

Size of vector v in the first dimension, returned as a nonnegative integer scalar. m is length(v).

Data Types: double

Size of vector v in the second dimension, returned as the value 1.

Data Types: double

Version History

Introduced in R2012a

See Also

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