when - when a function was introduced by MATLAB

版本 1.5.0.0 (1.8 KB) 作者: Reza Ahmadzadeh
This function shows the version in which the input function was introduced.
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更新时间 2019/7/24

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编者注: This file was selected as MATLAB Central Pick of the Week

The input to this function is a matlab/simulink function name, such as 'rand' as a string. The function checks the version in which the input function was introduced. This function also accepts a group as input functions to check. See the following examples:
Example 1:
>> when('rand')
## rand is a built-in function (Introduced before R2006a)
Example 2:
func_name = {'rand','plot','grid','findstr','weboptions'};
when(func_name)
## rand is a built-in function (Introduced before R2006a)
## plot is a built-in function (Introduced before R2006a)
## grid is a Matlab function or an ordinary m-file (Introduced before R2006a)
## findstr is a built-in function (Introduced before R2006a)
## weboptions is a Matlab function or an ordinary m-file (Introduced in R2014b)

引用格式

Reza Ahmadzadeh (2024). when - when a function was introduced by MATLAB (https://www.mathworks.com/matlabcentral/fileexchange/54483-when-when-a-function-was-introduced-by-matlab), MATLAB Central File Exchange. 检索来源 .

MATLAB 版本兼容性
创建方式 R2007a
兼容任何版本
平台兼容性
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版本 已发布 发行说明
1.5.0.0

Image updated

1.4.0.0

- upgraded towards working with https
- fixed issues with the combined lower-upper case filenames

1.3.0.0

Another bug fixed!

1.2.0.0

passing no variable to the main function.

1.1.0.0

Add a screenshot.
First bug mentioned by Stephen Cobeldick was fixed. Thank you Stephen!

1.0.0.0