Scilab Website | Contribute with GitLab | Mailing list archives | ATOMS toolboxes
Scilab Online Help
5.3.2 - English

Change language to:
Français - 日本語 - Português

Please note that the recommended version of Scilab is 2024.1.0. This page might be outdated.
See the recommended documentation of this function

Scilab help >> Compatibility Functions > mtlb_isa

mtlb_isa

Matlab isa emulation function

Description

There is no Scilab equivalent function for Matlab isa but some equivalent expressions can be used when the object "class" exists in Scilab.

The function mtlb_isa(OBJ,class) is used by mfile2sci to replace isa(OBJ,class) when it was not possible to know what were the inputs while porting Matlab code to Scilab. This function will determine the correct semantic at run time. If you want to have a more efficient code it is possible to replace mtlb_isa calls:

  • If class is equal to "logical", mtlb_isa(OBJ,class) may be replaced by type(OBJ)==4

  • If class is equal to "char", mtlb_isa(OBJ,class) may be replaced by type(OBJ)==10

  • If class is equal to "numeric", mtlb_isa(OBJ,class) may be replaced by or(type(OBJ)==[1,5,8])

  • If class is equal to "intX" (X being equal to 8, 16, or 32), mtlb_isa(OBJ,class) may be replaced by typeof(OBJ)=="intX"

  • If class is equal to "uintX" (X being equal to 8, 16, or 32), mtlb_isa(OBJ,class) may be replaced by typeof(OBJ)=="uintX"

  • If class is equal to "single", mtlb_isa(OBJ,class) may be replaced by type(OBJ)==1

  • If class is equal to "double", mtlb_isa(OBJ,class) may be replaced by type(OBJ)==1

  • If class is equal to "cell", mtlb_isa(OBJ,class) may be replaced by typeof(OBJ)=="ce"

  • If class is equal to "struct", mtlb_isa(OBJ,class) may be replaced by typeof(OBJ)=="st"

  • If class is equal to "function_handle", mtlb_isa(OBJ,class) may be replaced by type(OBJ)==13

  • If class is equal to "sparse", mtlb_isa(OBJ,class) may be replaced by type(OBJ)==5

  • If class is equal to "lti", mtlb_isa(OBJ,class) may be replaced by typeof(OBJ)=="state-space"

Caution: mtlb_isa has not to be used for hand coded functions.

See Also

  • type — Returns the type of a variable
  • typeof — object type

Authors

  • V.C.
<< mtlb_is Compatibility Functions mtlb_isfield >>

Copyright (c) 2022-2023 (Dassault Systèmes)
Copyright (c) 2017-2022 (ESI Group)
Copyright (c) 2011-2017 (Scilab Enterprises)
Copyright (c) 1989-2012 (INRIA)
Copyright (c) 1989-2007 (ENPC)
with contributors
Last updated:
Thu May 12 11:44:29 CEST 2011