Delete some rows where column 1 = certain value

How can I delete only the rows where the column1 value = 1 or 101 or 102

My matrix is 10000 *137. i WANT TO DELETE ALL THE ROWS WHERE MY COLUMN 1 ENTRY IS EITHER OF THESE VALUES. Unique values in my column1 are 1, 101, 102, 105, 34,45,67,22,32

The other option I have is : I want to retain only those rows where my columns are 67, 22, 32 Are there specific commands tht I can use for these two situations?

Answer 1

[KSSV]

data = rand(100,2) ;  % random data 
% add 1,101,102 randomly 
data(randsample(1:100,10),1) = 1 ;
data(randsample(1:100,7),1) = 101 ;
data(randsample(1:100,15),1) = 102 ;
%%remove rows with 1 , 101 and 102
data(data(:,1)==1,:) = [] ;
data(data(:,1)==101,:) = [] ;
data(data(:,1)==102,:) = [] ;

[Walter Roberson]

You do not need three deletions.

data(ismember(data(:,1), [1, 101, 102]), :) = [];

Answer 2

[Andrei Bobrov]

out = your_data(ismember(your_data(:,1),[67, 22, 32]),:);