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p=&data.n; *p=data.n; p=(struct sk*) &data.n; p=(struct sk*)data.n;
N___Sk___S____Nk___N___Sk___S___Nk N___Nk___S___Sk__N___Nk___S___Sk N___Sk___N___Sk__S___Nk___S__Nk N___Nk___N__Nk___S__Sk_S__Sk
p=&datn; *p=datn; p=(struct sk*)&datn; p=(struct sk*)datn;
q=&data.m; *q=data.m; q=(struct sk*)&data. m; q=(struct sk*)data.m;
q=&data.m; *q=data.m; q=(struct sk*)&data.m; q=(struct sk*)data.m;
q=&datm; *q=datm; q=(struct sk*)&datm; q=(struct sk*)datm;
q=&datm; q=datm; q=(struct sk*)&datm; q=(struct sk*)datm;
N-Sk-S-Nk-N-Sk-S-Nk N-Nk-S-Sk-N-Nk-S-Sk N-Sk-N-Sk-S-Nk-S-Nk N-Nk-N-Nk-S-Sk-S-Sk
P=&data.n; *P=data.n; P=(struct sk*)&data.n; P=(struct sk,)data.n;
q=&data.m; q=data.m; q=(struct sk*)&data.m; q=(struct sk*)data.m;
若偏态系数SK=0为对称分布 若偏态系数SK>0为右偏或正偏分布; 若偏态系数SK>0为左偏或负偏分布; 偏态系数SK<0为左偏或负偏分布 偏态系数SK<0为右偏或正偏分布
q=&datm; *q=datm; q=(struct sk*)&dat m; q=(struct sk*)datm;
p=(struct sk *)&data.a; p=(struct sk *)data.a; p=&data.a; *p=data.a;
q=&data.m; *q=data.m; q=(struct sk*)&data.m; q=(struct sk*)data.m;
OPENS K.dbf USES K.dbf EDIT S K.dbf MODIFY SK. dbf
p=&datn; *p=datn; p=(struct sk*)&datn; p=(struct sk*)datn: