4、With a secondary data source, users cannot save the data they enter into the form to use offline.使用辅助数据源，用户无法保存他们在表单中输入的数据以便脱机使用。
在英语中，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...
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 purpose, but which can be used or adapted for the surv...
Primary data is original data collected firsthand for a specific research purpose, while secondary data is existing data collected by others for different purposes. 首先确定问题完整且不包含需要舍弃的情况。初级数据(primary data)指研究者亲自收集的第一手数据,如通过调查问卷、实验或观察获得,针对性解决当...
Primary vs. secondary data Data: Data is information collected to be used for research or reference purposes. Usually, pieces of data are gathered to support some type of hypothesis. Depending on the nature of the research, data can take many forms and presented in a variety of ways, such ...
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...
Regional health planningNeeds-based careSecondary 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....
a finite or infinite interval. You can count, order and measure continuous data. For example, ...
Eveniftwostudiesusethesamemeasurementunit,thetermsofdefinitionwereoftendifferent.Inmostcases,usingsecondarydataiscostsaving,thiscannotalwaysapply.Forexample,usingsecondarydatacompiledbyacommercialorganizationmightbequiteexpensive.Itistheresponsibilityoftheresearcherthatdataareaccurate;inaccuraciescannotbeblamedonthesecondary...
Step by step video solution for Introduction|| Collection OF Data||Primary and Secondary Data|| classes|| Class interval|| Class size ( range )|| Presentation OF Group data & Single data ( ungrouped data )||Tally mark||Frequency distribution table by Maths experts to help you in doubts &...