Deleting rows and columns of all zeroes in a symbolic matrix
2 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Hello,
How can I delete all rows and columns of all zeroes in a symbolic matrix?
The solution listed here ( http://www.mathworks.com/matlabcentral/answers/40018-delete-zeros-rows-and-columns ) does not work when the matrix is symbolic. The any command produces an error "Unable to prove variable-name literally."
Thanks, Kevin
0 Kommentare
Akzeptierte Antwort
Teja Muppirala
am 27 Feb. 2013
syms x1
data = [ x1, 1, 0 ; 0, 0, 0 ; 0, 1, 0]
data( all( isAlways(data==0) ,2) ,:) = []
data( : ,all( isAlways(data==0) ,1)) = []
0 Kommentare
Weitere Antworten (1)
Shashank Prasanna
am 26 Feb. 2013
The following worked perfectly fine for me. Can you share the exact error message you got?
x = [1 1 0;0 0 0;0 1 0]
>> data=sym(x)
data =
[ 1, 1, 0]
[ 0, 0, 0]
[ 0, 1, 0]
data( ~any(data,2), : ) = []; %rows
data( :, ~any(data,1) ) = []; %columns
Siehe auch
Kategorien
Mehr zu Numbers and Precision finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!