primary data是主要数据，secondary data是次要数据。用Primary data举例子：separate the primary data and indices to that data.他们的解决方案是把主要数据和这些数据的索引分离开来。The Node object is the primary data type for the entire DOM.节点对象是整个DOM中最主要的数据类型。用Secondary da...
1、Industry documents were analysed alongside primary and secondary data on the tobacco industry in South Korea.对韩国的烟草业文件进行了分析，同时，对关于烟草业的主要数据和次级数据进行了分析。2、Secondary data refers to previously collected data from internal and external sources.中级的数据...
Primary and Secondary data-主要和次要数据 【知识点】 Primary and Secondary data-主要和次要数据 Primary and Secondary data-主要和次要数据 Primary dataare data collected especially/particularly for a specific purpose. Secondary dataare data which have already been collected elsewhere, for some other purp...
Secondary data analysisDementiaHealth service planning that takes into account as far as possible the regional needs and regional discrepancies is a controversial health issue in Germany.Ulrich, Lisa-R.Univ CologneSchatz, Tanja R.Goethe Univ Frankfurt...
Primary Data THE TOPIC: Primary research is any type of research that we go out and collect ourselves. Examples include surveys‚ interviews and observations. In other words information that has been collected at first hand is called primary research. It involves measurement of some sort‚ wh...
Secondary data needs to be analyzed to ensure the credibility and applicability of these data to a subject, situation, or project. Learn about the definition of secondary data analysis and check out the given examples. Related to this Question ...
Primary Data THE TOPIC:Primaryresearch is any type of research that we go out and collect ourselves. Examples include surveys‚ interviews and observations. In other words information that has been collected at first hand is calledprimaryresearch. It involves measurement of some sort‚ whether by...
Today’scoursestructures:Firstclass:taughtcourseDatasources:1.Secondarydata2.PrimarydataSecondclass:discussingwithyouaboutyourresearchtopicandresearchproblems(questions)2 Lecture5Datasources Purposeofthischapter:a.Thedefinitionofsecondaryandprimary datab.Whatwemeanbydatacollectionc.Whatthesourcesofdatacollectiond...
There are many examples of primary research in all fields of academia. The main things a scholar should look for when determining the difference between primary and secondary research is the firsthand nature of the source and the methods of data collection and experimentation pursued by the origina...
一手数据（Primary data）：也称原始数据。指通过人员访谈、询问、问卷、测定等方式直截获得的，时效性和相关性更好。二手数据（Secondary data）：利用文献，统计年报以及数据库等前人统计好的数据资料。优点是获取成本低，且现成可用。一般可以长时间保存，生成数据趋势图方便。一手数据提能够提供量身定制的...