How to loop through a dataset and skip every other row?

I have a dataset and would like to create a loop to skip every other row and get the data pertaining to that data. for example:

• A 1,2,3,4,5,6
• B 7,8,9,10,11,12
• C 13,14,15,16,17,18

I would like to write a for loop to get the data in rows A,C, E, G, etc.

Answer 1

[Azzi Abdelmalek]

If M is your matrix

out=M(1:2:end,:)

[andrew]

is there a way to choose a specific row to start for example lets say I wanted to start from row B and have it print B,D,F, etc

[Azzi Abdelmalek]

out=M(2:2:end,:)

[andrew]

the data contains subsets for example a1, a2, a3, a4, a5...a24, b1, b2, b3....b24, etc

how can I just print the following rows: a2, a4, a6, a8....o24 b1,b3,b5,b7,b9....p23 b2,b4,b6,b8....p24

[Azzi Abdelmalek]

If you mean, for example

data=[1 2 3 4 5 6 7 8 9 10]
out=data(2:2:end)

It's just like I said above

[andrew]

Maybe this will clarify my question:

The code that you gave me works and I just need to be able to get rid of the ones that ends in for example A(3,5,7,9,11,13,15,17,19,21,23...

outcome should be (1,A2)(1,C2)(1,E2)(1,G2)(1,I2)(1,K2)(1,M2)(1,O2), (1,A4)...etc...

[Azzi Abdelmalek]

There is no, in Matlab, data like

(1,A2)(1,C2)(1,E2)(1,G2)(1,I2)(1,K2)(1,M2)(1,O2), (1,A4).

What class of data are using?

[andrew]

these were imported and represent a location.

[José-Luis]

Those are strings. Are they stored in a cell array?

[andrew]

they are stored in data9.Location

[José-Luis]

That's the variable name. What's the variable type? Most likely a cell array. You can find out by:

   class(data9.Location)

Answer 2

[José-Luis]

If you indeed have a cell array of strings, this should work:

 your_data = cellfun(@(x) x(3:end),data9.Location,'uniformoutput',false)

Please accept an answer if it helps you.

[andrew]

is there a way to sort the column so that all the A's, are together?

[José-Luis]

That's a different question.

 sort(your_data)

Please accept an answer if it helps you.