对数据新闻制作者来说，建立CodeBook编码表是非常必要的。
对数据新闻制作者来说，建立CodeBook编码表是非常必要的。
In vector quantization process, the input vector is matched with the codeword in the codebook with a kind of criterion named distortion measure.
In vector quantization process, the input vector is matched with the codeword in the codebook with a kind of criterion named distortion measure.
2.以下能够实现变量选择的Stata命令有： A: codebook B: drop C: findout D: keep
2.以下能够实现变量选择的Stata命令有： A: codebook B: drop C: findout D: keep
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