SAS中当一个变量的值未定义的时候,可以认为是缺失值, missing values。 表现 如果是数值型,则用英文句号表示缺失值,如果是字符型,则用空白表示缺失值。 缺失值判断 可以用missing()函数判断是否是缺失值,函数返回1表示是缺失值,示例如下: 缺失值的比较 缺失值比正常的字符或者数字都小,可以用于比较,示例如下: 缺...
if numvar<=.z then do; #Since.zis thelargestof all (numeric) missing values in SAS (._ < . < .a < .b <...< .z), #the condition.z < LDis a convenient way to abbreviatenot missing(LD) if charvar=' ' then do; if missing(var) then do;#The MISSING function enables you t...
Missing values within Life Sciences can be an interesting exercise, not just how they are used in programming and analysis but also how they are used as a tool to code and store data. Whether the value is not applicable, below alevel of quantification or just simply missing, is sometimes ...
Missing Values Any observation that has missing values for the response, frequency, weight, offset, or explanatory variables is excluded from the analysis; however, missing values are valid for response and explanatory variables if you specify the MISSING option in theCLASSstatement. Observations that ...
MIN:最小值 MISSING: 返回一个numeric result。该数字表明参数是否包含缺失值。 N: 返回非缺失值的数量。(number of nonmissing) NMISS:缺失值的数量(number of missing ) ORDINAL: 返回缺失值和非缺失值的第k个最小的值。(ordinal) PCTL: returns thepercentileof the nonmissing values corresponding to theper...
Missing values after merging Create dataset that contain missing value Proc sql return missing value while suppose to have value Missing and Additional Discussion stats 4 replies 03-14-2019 07:27 PM 1508 views 2 likes 4 in conversation Top...
Difference between SUM Function and + Operator The SUM function handlesmissing valueswhen calculating the sum, whereas the+operator does not return SUM if missing value(s) exist in any of the variable. data want; set have; newsale = sale1 + sale2 + sale3; ...
Ifdayis missing, then it will be imputed to either 30 or 31. if it is feb month then 28 or 29 Imputation flag is added with values as ‘D’ or ‘M’ if any dates is imputed. There are several ways toget the last day of the month,but most easiest way is usingINTNXfunction with...
Possible values include: Blob (b), Container (c), File (f), Share (s). Returns: the resource value.rowKeyEnd public String rowKeyEnd() Get the rowKeyEnd property: The end of row key. Returns: the rowKeyEnd value.rowKeyStart public String rowKeyStart() Get the rowKeyStart property: The...
Possible values include: Blob (b), Container (c), File (f), Share (s). Returns: the resource value.rowKeyEnd public String rowKeyEnd() Get the rowKeyEnd property: The end of row key. Returns: the rowKeyEnd value.rowKeyStart public String rowKeyStart() Get the rowKeyStart property...