isfunction(FUN)

バージョン 3.2.0.0 (2.5 KB) 作成者: Jos (10584)
returns true for valid matlab functions (v3.2, apr 2018)
ダウンロード: 519
更新 2018/4/9

ライセンスの表示

TF = ISFUNCTION(FUN) returns 1 if FUN is a valid matlab function, and 0 otherwise. Matlab functions can be strings or function handles.

[TF, ID] = ISFUNCTION(FUN) also returns an identier ID. ID can take the following values:
1 : FUN is a function string
2 : FUN is a function handle
0 : FUN is not a function, but no further specification
-1 : FUN is a script
-2 : FUN is not a valid function m-file (e.g., a matfile)
-3 : FUN does not exist (as a function)
-4 : FUN is not a function but something else (a variable)

FUN can also be a cell array, TF and ID will then be arrays.

Examples:
tf = isfunction('lookfor')
% tf = 1
[tf, id] = isfunction({@isfunction, 'sin','qrqtwrxxy',1:4, @clown.jpg})
% -> tf = [ 1 1 0 0 0 ]
% id = [ 2 1 -2 -4 -3 ]

See also function, script, exist, isa, which, nargin, function_handle

引用

Jos (10584) (2024). isfunction(FUN) (https://www.mathworks.com/matlabcentral/fileexchange/45778-isfunction-fun), MATLAB Central File Exchange. 取得済み .

MATLAB リリースの互換性
作成: R2017b
すべてのリリースと互換性あり
プラットフォームの互換性
Windows macOS Linux
カテゴリ
Help Center および MATLAB AnswersArgument Definitions についてさらに検索

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!
バージョン 公開済み リリース ノート
3.2.0.0

fixed spelling

1.0.0.0