vec2grid

版本 1.3.0.1 (3.6 KB) 作者: Kelly Kearney
Reshapes vector data to a grid
1.8K 次下载
更新时间 2021/9/23

vec2grid.m Documentation

View vec2grid on File Exchange

This is a simple utility to rearrange a list of data points into an ndgrid-style grid. It allows the original data points to be listed in any order, and allows for missing grid points (which become NaNs in the final grid).

Note: In order to support higher dimensional data, I opted to return data in ndgrid format rather than meshgrid format. This means output will often need to be transposed to be used with plotting functions like surf, pcolor, etc.

Syntax

[xg, yg] = vec2grid(x1, x2, ..., y);
[xg, yg] = vec2grid(xy);
[xg1, xg2, ... yg] = vec2grid(...);

Example

Let's assume we have a list of 2D data points, with a corresponding vector of z-data for each x-y point. The data points are stored in random order, and a few points are missing from the full grid.

[x,y] = ndgrid(1:4,1:5);
z = (1:numel(x))';

order = randperm(numel(x), numel(x)-3)';
x = x(order); y = y(order); z = z(order);

[x y z]
ans =

     1     3     9
     3     5    19
     4     3    12
     3     3    11
     2     2     6
     2     4    14
     4     5    20
     1     5    17
     2     3    10
     2     5    18
     4     2     8
     3     2     7
     3     4    15
     2     1     2
     1     1     1
     1     4    13
     3     1     3

We use vec2grid to return the data to a gridded format.

[xg,yg,zg] = vec2grid([x y z])
xg =

     1
     2
     3
     4


yg =

     1
     2
     3
     4
     5


zg =

     1   NaN     9    13    17
     2     6    10    14    18
     3     7    11    15    19
   NaN     8    12   NaN    20

引用格式

Kelly Kearney (2024). vec2grid (https://github.com/kakearney/vec2grid-pkg), GitHub. 检索来源 .

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vec2grid

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版本 已发布 发行说明
1.3.0.1

linked GitHub readme

1.3.0.0

Corrected github-renaming of entry

1.2.0.0

Linked to GitHub repository

1.1.0.0

Added support for unlimited dimensions in input data.

1.0.0.0

要查看或报告此来自 GitHub 的附加功能中的问题,请访问其 GitHub 仓库
要查看或报告此来自 GitHub 的附加功能中的问题,请访问其 GitHub 仓库