抽样转换 meaning in English
sampling switch
Examples
- This transformation is similar to the row sampling transformation , which creates a sample data set by selecting a specified number of the input rows
此转换类似于行抽样转换，后者通过选择指定数量的输入行来创建样本数据集。 - This transformation is similar to the percentage sampling transformation , which creates a sample dataset by selecting a percentage of the input rows
此转换类似于百分比抽样转换，后者通过选择输入行的百分比来创建样本数据集。 - In addition to the specified percentage , the percentage sampling transformation uses an algorithm to determine whether a row should be included in the sample output
除指定的百分比以外，百分比抽样转换还使用某种算法来决定样本输出中是否应包含某一行。 - By applying the percentage sampling transformation to a data flow , you can uniformly reduce the size of the data set while preserving its data characteristics
通过对数据流应用百分比抽样转换，可以在保持数据集的数据特性的同时均匀地缩减数据集的大小。 - For example , a company that wanted to randomly select 50 employees to receive prizes in a lottery could use the row sampling transformation on the employee database to generate the exact number of winners
例如，如果公司需要以抽彩给奖法随机选择50名雇员接受奖励，则可对雇员数据库使用行随机抽样转换来生成准确数目的获奖者。