{"title":"软件更新","authors":"G. Longton","doi":"10.1177/1536867X231175350","DOIUrl":null,"url":null,"abstract":"The most important change in this update is the addition of the subcommand breakdown, which issues a report on different missing values; that is, the numbers present as 1) empty strings \"\" if string variables are included and 2) system missing and extended missing values if numeric variables are included. This subcommand is most obviously useful as a check on the presence of extended missing values for numeric variables.","PeriodicalId":51171,"journal":{"name":"Stata Journal","volume":null,"pages":null},"PeriodicalIF":3.2000,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Software Updates\",\"authors\":\"G. Longton\",\"doi\":\"10.1177/1536867X231175350\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The most important change in this update is the addition of the subcommand breakdown, which issues a report on different missing values; that is, the numbers present as 1) empty strings \\\"\\\" if string variables are included and 2) system missing and extended missing values if numeric variables are included. This subcommand is most obviously useful as a check on the presence of extended missing values for numeric variables.\",\"PeriodicalId\":51171,\"journal\":{\"name\":\"Stata Journal\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.2000,\"publicationDate\":\"2023-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Stata Journal\",\"FirstCategoryId\":\"100\",\"ListUrlMain\":\"https://doi.org/10.1177/1536867X231175350\",\"RegionNum\":2,\"RegionCategory\":\"数学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"SOCIAL SCIENCES, MATHEMATICAL METHODS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Stata Journal","FirstCategoryId":"100","ListUrlMain":"https://doi.org/10.1177/1536867X231175350","RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"SOCIAL SCIENCES, MATHEMATICAL METHODS","Score":null,"Total":0}
The most important change in this update is the addition of the subcommand breakdown, which issues a report on different missing values; that is, the numbers present as 1) empty strings "" if string variables are included and 2) system missing and extended missing values if numeric variables are included. This subcommand is most obviously useful as a check on the presence of extended missing values for numeric variables.
期刊介绍：
The Stata Journal is a quarterly publication containing articles about statistics, data analysis, teaching methods, and effective use of Stata''s language. The Stata Journal publishes reviewed papers together with shorter notes and comments, regular columns, book reviews, and other material of interest to researchers applying statistics in a variety of disciplines.
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