Error:File:C:\MATLAB7\work\apriori.m Line:1 Column:24 Missin

Error:File:C:MATLAB7workapriori.m Line:1 Column:24 Missing MATLAB operator.
function [L]=apriori(D,2)
[L A]=init(D,2)%A为1-频繁项集 L中为包含1-频繁项集以及对应的支持度
k=1;
C=apriori_gen(A,k) %产生2项的集合
while (size(C,1)==0)
[M C]=get_k_itemset(D,C,2)%产生k-频繁项集 M是带支持度 C不带
if (size(M,1)==0)L=[L;M]
end
k=k+1;
C=apriori_gen(C,k)%产生组合及剪枝后的候选集
end
运行结果
[L]=apriori(D,2)
Error:File:C:MATLAB7workapriori.m Line:1 Column:24
Missing MATLAB operator.