Selection and manipulation of a dataset

Given the following data,

+ 0.5532 1 3 tcp 1500 ------- 0 0.0 3.0 56 135

- 0.553253 1 3 cbr 512 ------- 3 0.2 3.4 1 71

+ 0.554179 1 3 cbr 512 ------- 3 0.2 3.4 21 136

r 0.555253 1 3 cbr 512 ------- 3 0.2 3.4 0 68

+ 0.5558 1 3 cbr 500 ------- 2 2.1 3.2 9 138

- 0.555984 1 3 tcp 1500 ------- 0 0.0 3.0 42 73

+ 0.5608 1 3 cbr 500 ------- 2 2.1 3.2 10 140

+ 0.5612 1 3 tcp 1500 ------- 0 0.0 3.0 57 139

+ 0.562019 1 3 cbr 512 ------- 3 0.2 3.4 22 141

r 0.563253 1 3 tcp 1500 ------- 0 0.0 3.0 41 70

- 0.563984 1 3 cbr 512 ------- 3 0.2 3.4 2 74

+ 0.5658 1 3 cbr 500 ------- 2 2.1 3.2 11 143

r 0.565984 1 3 cbr 512 ------- 3 0.2 3.4 1 71

How can I, for example,

A: select and display data with + , 3 , and *tcp only * .

B: select and count data with + , 3 , tcp and 3.0 only.

Please note that the data to be analyzed is separated by space. The data has 12 columns whose headings are; Event , time , from_Node , to_Node , Packet_Type , Packet_Size , Flags , F id , Source_Address , Destination_Address , Sequence_Number and Packet_Id .

For example, + 0.155355 1 3 tcp 1500 ------- 0 0.0 3.0 2 3;

+ is an event ,

0.155355 is time in secs,

1 is from_Node ,

3 is to_Node ,

tcp is Packet_Type ,

1500 is Packet_Size ,

 *-------* are *Flags* ,

0 is Fid ,

0.0 is Source_Address ,

3.0 is Destination_Address ,

2 is Sequence_Number and

3 is Packet_Id .

I have used = = to find and display rows with a specific number. e.g.

dsFS = dsNew2(dsNew2.VarName2==0.554179,:);

I have also used strfind, to find a certain char like ‘+’ as shown below

dsFS1 = strfind (S.VarName1,'+'); to display a char ‘+’.

alternatively, I have also used ismember and strcmpi , to find ‘+’, where S=data and S2=’+’ as shown below.

[Lia,Locb] = ismember(S, S2); stringcomp=strcmpi(S, S2); DisplayR=S(Lia,:);

As explained above, my challenge is to ; (A): select and display data with + , 3 , and tcp only .

(B): * select * and count data with + , 3 , tcp and 3.0 only