diag函数。在FreeMat、Matlab中该函数用于构造一个对角矩阵，不在对角线上元素全为0的方阵，或者以向量的形式返回一个矩阵上对角线元素。
中文翻译：diag=diagnosis诊断；特征。
相关介绍
OBJECTIVE To improve the early diag-nosis and treatment of the isolated sphenoid sinus aspergilloma ( ISSA).
目的提高对孤立性真菌球性蝶窦炎的认识，以期早期诊治。
Other types of large granular lymphocyte leukemia and extranodal NK/ T cell lymphoma should be excluded in order to diag-nose it.
在诊断过程中需要与其他大颗粒淋巴细胞疾病以及结外NK或T细胞淋巴瘤相鉴别。
Furthermore, among those 6 patients with negative results via barium-meal examination, 4 patients were diag-nosed with intestinal diseases by double-balloon enteroscopy.
在小肠钡灌检查未发现异常的6例病变中有4例在双气囊电子小肠镜检查中发现病变。
