Labels variables and select_one values. Note that Stata can only label numeric values, so the template will only label select_one values when all possible values are numeric. Note also that variable labels are truncated at 79 characters, but the template also adds a "note" to each field wit...
6 recode — Recode categorical variables Referring to the minimum and maximum in rules recode allows you to refer to the minimum and maximum of a variable in the transformation rules. The keywords min and max may be included as a from-value, as well as a to-value. For example, we might...
any program - whether it is written by Stata staff or a Stata user - intends to solve a problem or facilitate a task. While other users can get benefit from using the program, reading the source code can reveals how the problem was solved. But I have had ...
analysts first recode the original dataset into statistical software and then create statistical models by using data mining tools. When the mining models are validated against validation data, then analysts need to append propensity scores with a database of millions of voters (such databases typicall...
()will be 0 for that observation. If you want to recode such 0s to numeric missing, here is one way to do it. We exploit the fact that the observation-wise (rowwise) maximum will be returned as missing byegen, rowmax()if and only if all values examined in an observation are ...
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In words, gcollapse would be modified as follows: Check for numeric type variables, as before. If there are string types, make sure they are only present where sensible, i.e. (first), (last), etc. Throw an error if string variables present where type is not supported (i.e. not firs...
实证研究的200篇文章 加油少女发表于计量模型 高级计量经济学Ⅱ-3.Instrumental Variable IV在之前的GMM中也学过: 高级计量经济学一学习/复习笔记:9.GMM(2)-IV工具变量IV工具变量(Instrumental variables) -(一)IV工具变量-(二)stata代码之估计IV工具变量-(三)实操/各类… 粥厌盐发表于高级计量经...打开...
iso_numeric int %8.0g parent_id int %8.0g parent_name str41 %41s parent_layer_~r byte %8.0g parent_path str128 %128s parent_iso_al~2 byte %8.0g parent_iso_al~3 byte %8.0g parent_iso_nu~c byte %8.0g year_bgn int %10.0g Year of start ...
because then you lose cases that are non-missing on other variables you may want to analyze in the same run. It is best to construct a new variable with a new name. For example, with hw70 you could call the recode "hw70r" or "HAZ". In Stata I would do something like this to ...