- **a. numeric**:正确,因句点常用于数值型变量缺失值。 - **b. character**:错误,字符型变量缺失值通常不用句点。 - **c. 可以同时是字符或数值**:错误,缺失值表示方式与类型直接相关。 - **d. 无法判断**:错误,题目明确给出缺失值表示方式,结合常规可推断类型。 最终答案基于常规数据表示惯例,选a。...
haracter variable, because the values contain letters and underscores, which arenot valid characters for numeric values. 相关知识点: 试题来源: 解析 b 根据题目描述,变量AcctNum的值包含字母和下划线。在数据分析中,数值型变量仅包含数字(可能包括小数点或负号,但不包含字母或特殊符号)。由于字母和下划线属于...
Question: "What type of variable is ""number of children in a family""?Options:A. ContinuousB. CategoricalC. DiscreteD. Ordinal" ""number of children in a family""? Options: A.Continuous B.Categorical C.Discrete ...
The basic function of a variable speed drive (VSD) is to control the flow of energy from the mains to the process.
Astring variableholds a string of alphanumeric characters. Examples: a person’s name, a password, the day of the week ABoolean variablehas only two possible values: true or false. Examples: Is it daytime? Is the game over? In MakeCode, aposition variableis a special kind of variable that...
What is a data type in programming? In any programming language, the data type defines which operations can safely be performed to create, transform and use the variable in another computation. Specifically, every piece of data has a type that tells the machine how to interpret its value. ...
Now, let's programmatically evaluate the what-if results by setting the command to a variable. PowerShell Azure CLI Azure PowerShell Copy $results = Get-AzResourceGroupDeploymentWhatIfResult ` -ResourceGroupName ExampleGroup ` -TemplateUri "https://raw.githubusercontent.com/Azure/azure-docs-...
A query variable is a parameter that you add to the end of a query string. The parameter tells the query what information to return from the database. More About Query Variables Parametersare crucial for queries that you want to return specific results. For example, the default WordPresspermal...
If running gProfiler as an executable and using sudo, make sure to run sudo -E if you have the environment variable defined (otherwise, sudo will forget it). Alternatively, you can run sudo https_proxy=my-proxy /path/to/gprofiler ... If running gProfiler as a Docker container, make su...
Variable names in error messages: How to interprete the name of a variable for where it is defined and what does it define? Note: This discussion is about an older version of the COMSOL Multiphysics®software. The information provided may be out of date....