Proc FREQ is used to createfrequencyandcross-tabulation tables. Proc FREQ can be used to create one-way, two-way or n-waytables. 1. 计算 频率分布的基本语法: PROCFREQ<options>;TABLESrequests</options>;BYvariables;WEIGHTvariable;TESToptions;EXACTstatistic-options</computation-options>;OUTPUT<OUT=...
SAS proc freq总结 1.proc freq 1.1、基本模式、一般用法: proc freq data = example1 参数1; tables 变量 / 参数2; 可选1:weight count; run; 参数1: 1 nlevels 统计变量独立值个数 2 noprint 不打印结果 3 order=FREQ 按频数从大到小排列(PS:To order categories based on a particular FORMAT, ...
运行并测试SAS代码以确保正确降序排序: 在SAS环境中运行上述代码,你将看到salary变量按照降序排列的输出结果,从而验证排序的正确性。 优化代码性能(可选): 对于大数据集,PROC SORT可能会消耗较多的计算资源和时间。在这种情况下,可以考虑以下几点来优化性能: 确保数据在排序前已尽可能清理和过滤,以减少不必要的数据...
SASPROCFreq 1.Introduction Frequencytablesshowthedistributionofvariablevalues.Cross-tabulationtablesshowcombined frequencydistributionsfortwoormorevariables.Forone-waytables,PROCFREQcancomputechi- squaretestsforequalorspecifiedproportions.Fortwo-waytables,PROCFREQcomputestestsand ...
FREQ : Levels are ordered by descending frequency count.DATA: Levels are ordered as they were ordered in the input SAS data set.FORMATTED: Levels are ordered by their external formatted value.Default: INTERNA L Note: the ORDER= option does not apply to missing values, which are always ...
BY 变量名; #按照某个分类变量统计 RUN; 1. 2. 3. 4. 5. 6. 7. 8. (1)FREQ过程—TABLES语句常用选项: LIST:print cross-tabulations in list format rather than grid MISSING: includes missing values in frequency statistics NOCOL : suppresses printing of column percentages in table ...
但到目前为止，这是我的代码：data boat; infile cards; input name $ 1-12 port $ move...
2、SORTSEQ = LINGUISTIC 总所周知,SAS 支持多个国家和地区的语言,针对不同语言、地域、文化习惯,SAS 会有不同的数据处理方式。当我们尝试在 Unicode 环境下对含有中文的数据集进行排序时,结果可能是非预期的。例如: proc sql;selectUSUBJID,AETERMfromae order byUSUBJID,AETERM;quit; ...
SAS中的排序语句:proc sort data=文件名 out=输出文件名(自己命名);by 变量(需要排序的变量);run; 注意:这里如果默认的是升序排列,如果某些或某个变量需要降序排列的话,就在这些或这个变量的前面加上descending就好啦! 知识点看起来很简单,但是也会遇到小麻烦,就像我一样,这个排序错误有时候可能分数据集本身的结...
proc sort data=account out=bytown3 ; by Town debt; run; data bytown_mm; set bytown3; by Town; put _all_; if first.Town or last.Town; run; proc print data=bytown_mm; title 'bytown_mm'; run; 可见,sas已经把每个城镇最大和最小负债的全部筛选出来。由于加上了 put _all_,所以日志...