第一步,我将介绍"SAS last"函数的基本语法和用法。在SAS中,我们可以使用"last"函数加上一个点"."来引用数据集的最后一行。例如: data dataset; set input_dataset; last_row = last.; run; 在上述代码中,我们首先定义了一个名称为"dataset"的数据集。然后,使用"set input_dataset"从一个名为"input_datase...
order by date desc into :last_obs quit; ``` 3.使用PROC SORT:在SAS的PROC SORT过程中,我们可以使用OUTOBS选项来实现对数据集的筛选操作。通过设置OUTOBS的值为1,可以获取排序后的数据集中的第一行数据,即最后一行。例如,以下代码可以获取数据集“example”按照“value”变量降序排序后的最后一行数据: ``` ...
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sas.fulldirpath.sasrootdir.default must point to your SASHOME location, typically C:/Progra~1/SASHome or /usr/local/SAS. Within SASHOME, it's expected that the standard folder structure is present (in SAS 9.4, this is SASFoundation/9.4). If this is not the case, you will need to ad...
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sas.fulldirpath.sasrootdir.default must point to your SASHOME location, typically C:/Progra~1/SASHome or /usr/local/SAS. Within SASHOME, it's expected that the standard folder structure is present (in SAS 9.4, this is SASFoundation/9.4). If this is not the case, you will need to ad...
var; format date date9.; cards; A 01JAN2023 10 B 05JAN2023 5 B 06JAN2023 6 C 15JAN2023 7 C 16JAN2023 8 C 19JAN2023 9 C 20JAN2023 10 D 24JAN2023 2 ; Run; proc sort data=have; by ID date; Run; Data Way2; set have end=last; by ID; if last then output; run; 0...
rdate(8) reboot(8) rem_drv(8) remove_allocatable(8) removef(8) reparsed(8) repquota(8) restricted_shell(8) rexecd(8) ripd(8) ripngd(8) rlogind(8) rmmount(8) rmt(8) rmvolmgr(8) rndc-confgen(8) rndc(8) roleadd(8) roledel(8) rolemod(8) root_archive(8) rotatelogs(8) ...
<abbrev-hash> (, <short-author-date>) This format is used to refer to another commit in a commit message and is the same as--pretty='format:%C(auto)%h (%s, %ad)'. By default, the date is formatted with--date=shortunless another--dateoption is explicitly specified. As with anyfor...
Date1 AssignmentProperties.Date10 AssignmentProperties.Date2 AssignmentProperties.Date3 AssignmentProperties.Date4 AssignmentProperties.Date5 AssignmentProperties.Date6 AssignmentProperties.Date7 AssignmentProperties.Date8 AssignmentProperties.Date9 AssignmentProperties.Delay AssignmentProperties.DelayFormat As...