然后定义了一个名为create_variable的宏,其中使用%IF/%THEN/%ELSE语句根据condition的值判断是否创建变量new_variable,并使用%LET语句创建变量并赋值。最后,在数据步中使用INPUT语句创建了一个名为new_variable的变量,并将其作为输入变量读取数据。相关搜索:
formated-vars指的是格式化变量,标准格式是:col-pointer variable informat 其中,col-pointer指明从第几列开始读取数据,用@n来表示,n为指定开始读取的列,variable指出变量名,informat指出输入的格式,所有的informat都必须以点号.或点号.后接1个数字的形式作结尾,具体格式表如下: informat输入格式表 InformatMeaning n. ...
Re: how to create a new variable Posted 07-25-2017 09:04 AM (1519 views) | In reply to Elena Here could give a start . DATA TEMP; INPUT codice_comune anno tt75 tt80 ; DATALINES; 33001 2002 141 77 33001 2003 148 88 33001 2004 136 104 33001 2005 137 106 33001 2006 134 115...
answer:?? b To permanently associate a format with a variable, you use the FORMAT statement in a DATA step. You can use the FORMAT procedure to create a user-defined format. You use the INPUT function to convert character data values to numeric values with an informat. You use the INPUT...
* Create a data set, both, combining northent and southent; * Create a variable, AmountPaid, based on value of variable Age; DATA both; SET southent northent; IF Age = . THEN AmountPaid = .; ELSE IF Age < 3 THEN AmountPaid = 0; ...
%create_macro_variable(my_variable, "Hello, World!"); 使用宏变量:在程序的其他部分使用宏变量时,可以使用&符号引用它们的值。例如,下面的代码使用了上述创建的宏变量: 代码语言:txt 复制 data mydata; set mydataset; new_variable = "&my_variable"; ...
⑤LENGHT=variable定义一个变量, 其值是当前输入数据行的长度。 ⑥OBS=n指定从一个顺序输入文件中读取数据的最后一个观测(即第1～第n个观测)。 3.INPUT语句(输入语句) 描述一个输入记录中数值的安排情竣给相应的SAS变量赋输入值,该语句只能用于读入存放于外部文件中的数据或...
Thevariableorderjdisnumeric;customerischaracter;andshippedisnumeric,containsaSASdate value,andisshownwiththeDATE9.format. Aprogrammerwouldliketocreateanewvariable,ship_note,thatshowsacharactervaluewiththe orderjd,shippeddate,andcustomername. Forexample,giventhefirstobservationship_notewouldhavethevalue"Order9341...
>>> from pylab import * >>> help(plot) Help on function plot in module matplotlib.pyplot: plot(*args, **kwargs) Plot lines and/or markers to the :class:`~matplotlib.axes.Axes`. *args* is a variable length argument, allowing for multiple *x*, *y* pairs with an optional format st...
Create or modify variablesYou can use the transforms argument to rxImport to create new variables or modify existing variables when you initially read the data into .xdf format. For example, we could create a new variable, logcost, by taking the log of the existing cost variable as follows:...