• 设为首页
  • 点击收藏
  • 手机版
    手机扫一扫访问
    迪恩网络手机版
  • 关注官方公众号
    微信扫一扫关注
    公众号

kyamagu/matlab-json: Use official API: https://mathworks.com/help/matlab/json-fo ...

原作者: [db:作者] 来自: 网络 收藏 邀请

开源软件名称(OpenSource Name):

kyamagu/matlab-json

开源软件地址(OpenSource Url):

https://github.com/kyamagu/matlab-json

开源编程语言(OpenSource Language):

Java 93.5%

开源软件介绍(OpenSource Introduction):

Matlab JSON

This package contains Matlab class to serialize/decode matlab object in json format. The software uses customized org.json java package to convert json to java object and then translates it into Matlab object.

API

All functions are scoped under json namespace.

startup Initialize runtime environment.
dump    Encode matlab value into a JSON string.
load    Load matlab value from a JSON string.
read    Load a matlab value from a JSON file.
write   Write a matlab value into a JSON file.

Usage

Add path to the directory containing +json before use, and call json.startup. This is optional, but recommended.

>> addpath /path/to/matlab-json
>> json.startup

To serialize a matlab object:

>> X = struct('field1', magic(2), 'field2', 'hello');
>> S = json.dump(X);
>> disp(S);
{"field2":"hello","field1":[[1,3],[4,2]]}

To decode a json string:

>> X = json.load(S);
>> disp(X);
    field2: 'hello'
    field1: [2x2 double]

To read from or write to a json file.

>> json.write(X, '/path/to/file.json');
>> X = json.read('/path/to/file.json');

Note

Due to the multiple ways to represent an array in Matlab (i.e., numeric array, cell array, or struct array), it is impossible to represent everything in a compatible format. For example, a json string "[[1,2],[3,4]]" can be interpreted in different ways in Matlab, such as [1,2;3,4], {1,2;3,4}, {[1,2],[3,4]}, etc. Because of this, json.load does not always yield the exactly same input to json.dump.

This implementation is designed to maximize the ease of data exchange. For that purpose, by default, json parser assumes the following.

  • Native arrays precede a cell array. "[1,2]" is [1,2] in matlab.
  • Row-major order. e.g., "[[1,2],[3,4]]" is [1,2;3,4] in matlab.
  • N-D array is a nested json array.
  • Any other ambiguous arrays are treated as cell array. "[]" is {}.

For example, a nested array with the same sized elements is treated as an N-D array.

>> x = json.load('[[[1,2],[3,4]],[[5,6],[7,8]]]')

x(:,:,1) =
     1     2
     3     4

x(:,:,2) =
     5     6
     7     8

The json.load function can optionally take an option to specify column-major interpretation or cell-array precedence. Check help json.load for details.

In addition to the standard JSON specification, the included JSON parser accepts non-finite double values (Infinity, NaN).

The package is designed to make conversion as easy as possible. However, due to Java usage inside Matlab, the package is not optimized for performance. Be cautious when converting a huge variable.

Test

To run a test, invoke json.test.run.

>> json.test.run

License

You may redistribute this software under BSD license.

Links

JSON in Java




鲜花

握手

雷人

路过

鸡蛋
该文章已有0人参与评论

请发表评论

全部评论

专题导读
热门推荐
阅读排行榜

扫描微信二维码

查看手机版网站

随时了解更新最新资讯

139-2527-9053

在线客服(服务时间 9:00~18:00)

在线QQ客服
地址:深圳市南山区西丽大学城创智工业园
电邮:jeky_zhao#qq.com
移动电话:139-2527-9053

Powered by 互联科技 X3.4© 2001-2213 极客世界.|Sitemap