Scilab 6.0.0
Please note that the recommended version of Scilab is 2025.0.0. This page might be outdated.
See the recommended documentation of this function
typeof
explicit type or overloading code of an object
Syntax
t = typeof(object) oc = typeof(object, "overload")
Arguments
- object
a Scilab object
- t
a string (may have spaces): the name of the type of
object
- oc
a string (without spaces): the name of the overloading code for the
object
.
Description
t = typeof(object)
returns one of the following strings:
string | object is a matrix or hypermatrix made of
characters and texts. | ||
boolean | object is a
boolean matrix or hypermatrix. | ||
int8 or int16 or int32 or int64 or uint8 or uint16 or uint32 or uint64 | |||
object is a matrix or hypermatrix of [unsigned]
integers stored
on 8, 16, 32 or 64 bits. (see inttype) | |||
constant | object is matrix or hypermatrix of
decimal or complex numbers. | ||
polynomial | object is a matrix or hypermatrix of
polynomials
with decimal or complex coefficients. | ||
rational | object is a matrix or hypermatrix of
rational
fractions (e.g. transfer matrix), with decimal or complex coefficients. | ||
handle | object is a graphics
handle.
The subtype of graphics handles (Figure, Axes, Polyline,
Compound, etc) is available in their .type
property. See examples below. | ||
list | object is a list. | ||
st | object is a
structure
or a nD-array of structures. | ||
ce | object is a
cell or a nD-array of cells. | ||
boolean sparse | object is a
boolean sparse matrix.
| ||
sparse | object is a
sparse matrix
of decimal or complex numbers.
| ||
"Matlab sparse" | object is a Matlab-like-encoded sparse
matrix (see mtlb_sparse()). | ||
fptr | object is a built-in Scilab function,
called also gateway
(C, C++ or Fortran code), a.k.a. a primitive. | ||
function | object is a function
(Scilab code). See also deff. | ||
library | object is a
library
of functions in Scilab language. | ||
pointer | object is a pointer. See a use case:
lufact. | ||
implicitlist | object is an implicit list using a
polynomial as formal index, for indexing.
See n:$
: (colon) | ||
listdelete | is returned by
typeof(
.
See null(). | ||
void | is the typeof undefined elements in lists. | ||
Typed T-Lists or M-Lists: | |||
Note that if the object is a
tlist
or a mlist, typeof
will return the corresponding customized type stored in as a
string in the first list entry. | |||
Reserved T-List or M-List types predefined in Scilab: | |||
dir | object is the result of a
dir()
instruction, with fields name , date ,
bytes , and isdir . | ||
state-space | object is a state-space model
(see syslin). | ||
program | object is a list describing the internal code of a function
(see macr2tree). | ||
cblock | object is a block of columns of same
heights but of different data types, as returned by
mfscanf. | ||
XMLDoc | object is an XML Document created with
xmlRead,
xmlReadStr,
htmlRead, or
htmlReadStr.
Additional XML typeof are defined. | ||
H5Object | object is the id of an HDF5 file opened
with h5open.
Additional HDF5 typeof are defined:
See HDF5 Objects. | ||
uitree | object is a tree, a branch or a leaf as created with a
uitree feature. See for instance uiCreateNode. |
Examples
// Characters and texts t = ["a" "Hello" "à é è ï ô û ñ" "1" "Bonjour" "указывает тип объекта" ";" "Chao" "オブジェクトの型" ] typeof(t) // Booleans typeof(%t) typeof("abc"=="def") hm = grand(2,2,2,"uin",0,9)<5 typeof(hm) // Encoded integers [ typeof(uint8(%pi)) typeof(int8(-%pi)) typeof(uint16(%pi)) typeof(int16(-%pi)) typeof(uint32(%pi)) typeof(int32(-%pi)) typeof(uint64(%pi)) typeof(int64(-%pi)) ] // Decimal numbers n = 1:0.3:2 typeof(n) hm = grand(2,2,2,"uin",0,9) typeof(hm) // Decimal integers n = 1:7 typeof(n) // Complex numbers n = [%i 1-%i %pi - 3*%i] typeof(n) // Special "constant" typeof([]) // empty matrix // Polynomials n = [ %z (1-%z)^2] typeof(n) n = [ 3*%i + %z (1-%i*%z)^2] typeof(n) // Rational fractions r = [%s/(1-%s) (1+%s)^2/(1-%s)] // with real coefficients typeof(r) r = [%s/(%i-%s) (%i+%s)^2/(1-%s)] // with complex coefficients typeof(r) // Sparse matrices // --------------- w = sprand(100,100,0.001) typeof(w) // sparse typeof(w==w) // boolean sparse //x = mtlb_sparse(sprand(10,10,0.1)); //typeof(x) // Functions and libraries // ----------------------- deff('y=f(x)','y=2*x'); // Function in Scilab language f(%pi) typeof(f) typeof(cosd) // written in Scilab typeof(corelib) // Library of functions in Scilab language typeof(sin) // Built-in function (non-editable) mysin = sin; mysin(%pi/2) // Graphical handles // ----------------- clf plot2d() typeof(gcf()) // The subtype of the handle is in the "type" property: gcf().type gca().type gce().type close(gcf()) // Containers // ---------- // Simple list L = list(%pi, %t, %z, %s/(1-%s), "Bonjour", sin, cosd, list("list_in_list", 432)); typeof(L) // Cells array C = {%pi, %t, %z ; %s/(1-%s), "Bonjour", list("list_in_list", 432) } typeof(C) // (Array of) Structure S.num = %pi; S.b = %t; S(2).t = "Bonjour" typeof(S) // Special generic indexing expressions // ------------------------------------ typeof($) typeof(:) // "eye()" equivalent (all elements) typeof(3:$) // Typeof for deletion or undefined elements: // ----------------------------------------- typeof([]) // empty matrix typeof(null()) L = list(%pi, ,"hey!") typeof(L(2)) // undefined element // Customized typeof of T-Lists: // ---------------------------- L = tlist(['myLongTypeOf','a','b'], 18, 'Scilab'); typeof(L) // Reserved T-List typeof // ---------------------- typeof(dir()) // Files directory // c = macr2tree(sind); // Internal code of a Scilab macro typeof(c) fieldnames(c)' c.name // doc = xmlReadStr("<root><a att=""foo"">Hello</a></root>"); typeof(doc) xmlDelete(doc) // x = 1; save(TMPDIR + "/x.sod", "x"); // SOD files are HDF5 ones a = h5open(TMPDIR + "/x.sod"); typeof(a) h5close(a)
See also
- type — returns the type of a variable
- inttype — type integers used in integer data types
- overloading — display, functions and operators overloading capabilities
- isreal — check if a variable is stored as a complex matrix
- strings — Scilab Object, character strings
- poly — polynomial definition
- rlist — Scilab rational fraction function definition
- null — delete an element in a list
- sparse — sparse matrix definition
- issparse — determine whether input is sparse
- mtlb_sparse — convert sparse matrix
- syslin — linear system definition
- dir — gets file list
- XML Objects — Describe the properties of the different XML objects
- HDF5 Objects — Describe the properties of the different H5 objects
History
Version | Description |
6.0 |
|
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