Deleting specific rows in a matrix

I want to delete rows that contain element of value 0

for example in the following matrix B

row 3, 4 ,5 contains a zero valued element. So I want to delete these rows and the resultant matrix would be 2*3 .

How can I remove these particular rows

   120   150   200
   250   300   350
   420   450     0
     0   100   400
   450     0   420

Answer 1

[ANKUR KUMAR]

A=[120   150   200
   250   300   350
   420   450     0
     0   100   400
   450     0   420]

index=find(nanmean(A==0,2))
A(index,:)=[]

Below is the output of index and A (after removing the rows having zero value)

index =

     3
     4
     5

A =

   120   150   200
   250   300   350

[Mohammad Juned]

Thanks ANKUR KUMAR

[ANKUR KUMAR]

You asked in an another comment the reason behind using 2 in the line second line of code. Here is the reason just for your clarification:

2 is used because we are considering the second dimension of a matrix.

If you wish to do the same calucluation along columns, you can put 1 in place of 2 to get the column index having zero values in any of the available rows.

Hope this helps.

[Mohammad Juned]

ANKUR KUMAR I want to know why 2 is used in index=find(nanmean(A==0,2))

[Mohammad Juned]

Thank you ANKUR KUMAR