gspan implementation using gboost

Hi i am new to matlab and trying to implement gboost library in Matlab for subgraph mining. the input format is specified as

G : (1,n) cellarray of n graph structures with this layout

g.nodelables :(n,1) discrete integer labels [L_1;L_2;...:L_n];

g.edges: (m,2) edges, [from to] at each line: [e_1_{from} e_1_{to} ;...; e_m_{from} e_m_{to}]

the node indices go from 1 to n.

I tried creating cell array 's' of two graph structures G and P using following script

>> G.nodelabels =['a';'b';'c']

>> G.edges =[1 2;1 3 ;2 3]

>> P.nodelabels =['d';'e';'f']

>> P.edges =[1 2 ;1 3 ;2 3]

>> s ={G,P}

s =

    [1x1 struct]    [1x1 struct]

>> gspan(s,2)

But i get the following error when i implement the 'gspan' algorithm. Can someone help or correct where i went wrong??

*Starting normal gspan run... Undefined function or variable "subg".

Error in gspan (line 124) for i=1:length(subg)*

[Star Strider]

You might do better to post this to a ‘gboost’ group or ask ‘gboost’ technical support. I never heard of ‘gboost’ before reading your Quesiton.

[Clara Vetter]

you probably soved it but try calling a = gspan(s,2)