英语翻译文章主要是讲social media data的优缺点当其用在科学研究中的时候.讲缺点的时候有这样一句话：We
英语翻译
文章主要是讲social media data的优缺点当其用在科学研究中的时候.讲缺点的时候有这样一句话：We will begin by talking about sampling problems.A sampling frame is often impossible to creat.Except in certain limited circumstances it is possible to get a definitive list of email addresses,web pages,etc.This means that no unbiased sample is possible and most samples using NSM are convienience samples.
文章主要是讲social media data的优缺点当其用在科学研究中的时候.讲缺点的时候有这样一句话：We will begin by talking about sampling problems.A sampling frame is often impossible to creat.Except in certain limited circumstances it is possible to get a definitive list of email addresses,web pages,etc.This means that no unbiased sample is possible and most samples using NSM are convienience samples.
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