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Stata no dataset in memory has changed since last saved. Otherwise, save the data first.
Stata no dataset in memory has changed since last saved. dta is used. If filename is specified without an extension, . Opening a dataset in the current frame (see [D] frames intro) will replace the dataset, if any, that is currently in memory for that frame. May 18, 2022 · 如果需要连接数据集，则这是 append 或 merge 的任务。 如果它们是分开的，则不能同时打开它们。 您可以打开Stata的两个实例。 因此，更深层次的答案取决于数据集是什么，以及为什么要同时查看它们。 Feb 25, 2021 · At the time that you issued the set maxvar command you had a dataset in memory, and that may cause your data to be cleared and possibly lose some of your work. So issue the set maxvar command when you have no data in memory. If you open the file with any method other than the Command window . Stata knows that the data in memory has changed, and would need to be saved to avoid losing the changes. If your filename contains embedded spaces, remember to enclose it in double quotes. Follow our step-by-step guide! Description st updata() returns 0 if the data in memory have not changed since they were last saved and returns 1 otherwise. We also see a note from Stata saying dataset has changed since last saved. Upvoting indicates when questions and answers are useful. Otherwise, save the data first. If filename is not specified, the name under which the data were last known to Stata (c(filename)) is used. If you wish to use exit in do-files or programs to set return codes or terminate programs, see [P] exit. set maxvar 20000 no; dataset in memory has changed since last saved What to do? I have saved plenty I have tried . set maxvar 20000, clear no; dataset in no; dataset in memory has changed since last saved You attempted to perform a command that would substantively alter or destroy the data, and the data have not been saved, at least since the data were last changed. What's reputation and how do I get it? Instead, you can save this post to reference later. Jun 27, 2023 · But Stata has a general rule that you cannot overwrite the data in memory if it has been changed since it was last saved unless the command explicitly OKs that through a -clear- option. May 18, 2022 · You'll need to complete a few actions and gain 15 reputation points before being able to upvote. Datasets in other frames are unaffected. st updata(value) sets the data-have-changed flag to 0 if value = 0 and 1 otherwise. Nov 2, 2021 · . That is, while it is possible to have multiple datasets in memory at once, only one dataset may be active Description save stores the dataset currently in memory on disk under the name filename. If the dataset in memory has changed since the last save command, you must specify the clear option before Stata will let you exit. Jan 24, 2018 · Memory no longer needs to be set in modern Statas; memory adjustments are performed on the fly automatically. Sep 23, 2022 · Opening and saving datasets in Stata works similarly to those tasks in other computer applications. There are a few differences, however. First, it is possible to save and open files from within Stata’s Command window. Description Typing exit causes Stata to stop processing and return control to the operating system. Second, Stata allows just one dataset to be active at any one time. 目前写的都是一些数据的基础处理命令，求助这种情况该如何处理？ Learn how to resolve the Stata error that prevents you from loading new datasets when the current dataset has unsaved changes. If there have been changes to the data in the dataset in the current frame, Stata will refuse to discard the dataset unless you force it to do so. If you wish to continue anyway, add the clear option to the end of the command. gcrtzailzxcpkcaarwpycsiazcbwyzrzimxkqdeazahsxcpsjul