I need a code to count how many raw in my matrix above zero?

I have matrix and I need a code to count how many row contain negative integer

B =

     1    -1
     2    -2
     3     3

Answer 1

[Image Analyst]

Try using sum() and any():

B =[
	1    -1
	2    -2
	3     3]
numberOfNegativeRows = sum(any(B < 0, 2))

[Abdullah Alsuhaymi]

Thank you so much it works

Answer 2

[Erivelton Gualter]

You might use the function find (https://www.mathworks.com/help/matlab/ref/find.html).

Check the following code:

B = [1,-1; 2,-2; 3,3];
length(find(B<0))

[Image Analyst]

This counts the total number of negative numbers, not the number of rows. You might think what could happen if there are two negative numbers in one or more of the rows (answer in my Answer).

[Abdullah Alsuhaymi]

yes , this count the total number of nagative numbers in the matrix but I am looking for number of nagative rows ?

can you help me please ?