how can i exclude rows from a matrix

Dear Guys, I have a question that will help me a lot in my research. lets say I have a matrix of 3000*2 dimensions. the first 2900 rows are number 02 repeated in each row. the last 100 rows carry number 01. I do not need this number one rows. How can i tell MATLAB to read just the first 2900 or to exclude the outliers such as number 01 here? thank you guys

[Andrei Bobrov]

Please attach smal part your data here as mat-file.

[MAHMOUD ALZIOUD]

Here is a sample of the matrix, i need matlab to read just the similar number which is here number 2, and to delete the number 1 cells

thank you

Answer 1

[Cyrus Rezvanifar]

Simply try the two lines of code below, and it would remove the 1's elements from your data:

Data=str2num(Month_of_Data);
Data(2785:end)=[]

Let me know if this is what you needed to do

[MAHMOUD ALZIOUD]

it worked thank you Mr Sayed very much

[Cyrus Rezvanifar]

You're welcome, glad it worked