安裝中文字典英文字典辭典工具!
安裝中文字典英文字典辭典工具!
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- 学术小白求助stata的merge命令? - 知乎
数据匹配使用 merge 命令，当前打开的数据称为 master data，待匹配的数据称为 using data； 数据匹配包含 1:1，1:m，m:1，m:m 四种类型； 在匹配完成后，会生成一个显示匹配结果的变量，默认是“_merge”。 基本语法：
- Merge m:m vs joinby - Statalist
2 You are failing to take account of one or more additional variables in your data set that, combined with the variables you are trying to use as the merge key, uniquely identify the observations in one or both of your data sets, so you can use merge 1:m or merge m:1 or merge 1:1 with the expanded merge key 3
- How To Proceed With the Error Variable Merge Already Defined?
In #10 each -merge- command creates a new variable with the name specified in the -gen()- option So your new variables are named gh1, ed1, hm2, and iin1 None of them is named merge So when you ask Stata to -drop merge- it appropriately complains that there is no such variable Just skip the -drop merge- command If you are tight on memory
- Combine two data sets | Variable names are different - Statalist
Dear Stata listers, I have to merge two data sets Both have a unique identifier Unfortunately, most (if not all) of the other variables have different names For example, in one I would have pdead (participant dead) and in the other it is palive (participant alive)
- How to solve not uniquely identify observations when merge two . . .
I'm on Stata 14 0 I try to merge 2 dataset: one csv and dta But I have an answer from Stata: variable caseid does not uniquely identify observations in the using data r(459); I try with: [merge 1:1 caseid using "C:\Users\JBL\Dropbox\DropBox\Réanimation Anesthésie\PROJET\Etudes Universitaires\Thèse\ETUDES\2 Hypothermie et validation CAHP
- merge datasets; r(459); variable does not uniquely identify . . . - Statalist
I managed to merge set 1 and set 2 with the command merge m:m company_id using x dta I tried to do it the same way with set 3 but I get an error: r(909) op sys refuses to provide memory Stata's data-storage memory manager has already allocated 1760m bytes and it just attempted to allocate another 16m bytes The operating system said no
- Appending and merging multiple temp files - Statalist
in the -local to_merge- command to whatever the appropriate directory is If you choose the latter route, then you must also change the -user `starter', clear- and -merge 1:1 FIPScode year using `f'- commands to refer to the full pathname of the files (For these reasons, I think it is simpler to -cd- to the directory where the files are )
- -matchit- command to match two datasets based on similar . . . - Statalist
I have two datasets each containing data on certain firms I would like to merge the two datasets using the only available option: the name of the firms in the two datasets Unfortunately, the spellings of firm names are different across the two datasets Therefor, I looked for a command in Stata that can match the string variables
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