Scilab Home page | Wiki | Bug tracker | Forge | Mailing list archives | ATOMS | File exchange
Please login or create an account
Change language to: English - Français - Português - 日本語 -
Справка Scilab >> Sparse Matrix > Sparse Matrix Manipulation > nnz

nnz

number of non zero entries in a matrix

Syntax

n=nnz(X)

Arguments

X

real or complex sparse (or full) matrix

n

integer, the number of non zero elements in X

Description

nnz counts the number of non zero entries in a sparse or full matrix

Examples

sp=sparse([1,2;4,5;3,10],[1,2,3]);
nnz(sp)
a=[1 0 0 0 2];
nnz(a)

See also

  • spget — retrieves entries of sparse matrix
Scilab Enterprises
Copyright (c) 2011-2017 (Scilab Enterprises)
Copyright (c) 1989-2012 (INRIA)
Copyright (c) 1989-2007 (ENPC)
with contributors
Last updated:
Tue Feb 14 15:13:25 CET 2017