connStr <-"Server=.;Database=TestDB;Trusted_Connection=Yes"data <- RxSqlServerData(connectionString = connStr, sqlQuery ="SELECT COLUMN_NAME FROM TestDB.INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = N'testdata' AND DATA_TYPE <> 'image';") columns <- rxImport(data) columnList <- do.ca...
若要对 OLAP 多维数据集执行 MDX 查询,首先需要创建一个连接字符串 (olapCnn),然后使用函数 OlapConnection(connectionString) 进行验证。 连接字符串必须具有数据源(例如 localhost)和提供程序 (MSOLAP)。建立连接后,可以传递完全定义的 MDX 查询,或者可以使用 Query() 对象构造查询,使用 cube()、axis()、columns(...
RangeError(message:String)— 构造函数, 类 RangeError 创建一个新的 RangeError 对象。 RAREST_FIRST— 常量静态属性, 类 flash.net.NetGroupReplicationStrategy 指定当从邻居获取对象以满足需求时,首先请求所有邻居中具有最少副本的对象。 rate— 属性, 类 flash.media.Microphone 麦克风捕获声音时使用的速率,单位是...
Once the report is created inPower BI Desktop, you can publish the report containing one or more R visuals to the Power BI service. In the service, not all of the R packages are supported. See supported packages at the end of this article for the list of packages currently supported in ...
jws_private_key string Specifies the file name of the PEM or JWK file containing the private key to sign the JWT Bearer Token for client authentication. Required when logmech is BEARER and ignored for other logmech values. PEM and JWK file formats are supported. The private key filename mus...
解决R语言中出现的“undefined columns selected in data”参数错误 在R语言中,有时候我们会碰到一个错误提示:“undefined columns selected in data”,这是因为我们在使用某些函数时,传入的参数在数据集中并不存在。这个错误可能会让我们感到困惑,不知道如何解决。在本文中,我们将介绍这个错误的原因以及如何解决它。
Or, skip="string" uses the first line containing "string" (chosen to be a substring of the column name row unlikely to appear earlier), inspired by read.xls in package gdata. Thanks to Gabor Grothendieck for these suggestions. fread now stops reading if an empty line is encountered, with...
The shorthand syntax provides an easy way for you to create model templates that are suitable for unrestricted parameter estimation.For example, to create a GJR(1,2) model containing unknown parameter values, enter: Mdl = gjr(1,2);
You can only execute I/O operations using the individual members of the MAP (and not an entire VAX record containing the UNION/MAP) on non-native files. -xhasc[={yes|no}]Treat Hollerith constant as a character string in an actual argument list. ...
Right-click the zipped file for the package you want to upload, as well as its dependencies, clickSend to, and then selectCompressed (zipped) folder. Tip The compressed folder should contain at least one zipped file with the target package, plus additional zip files containing required packages...