The value of -1.6 of ages_score1m is not observed when STATA performs RCS

derek_forever 注册会员
2023-02-25 13:26

the reference answer GPT ᴼ ᴾ ᴱ ᴺ ᴬ ᴵ < br / > according to the error information you provide, It can be preliminarily determined that the program cannot run because a value(-1.6) of a variable(ages_score1m) is not observed. This may be due to missing data or typing errors.

Here are some possible solutions:

  1. Check the data for missing values or unreasonable values. You can use the describe command or summarize command of STATA to view basic information about the data, including the maximum value, minimum value, average value, and standard deviation of variables. If you find that a variable has abnormal values, you can try to remove these outliers or use other methods to fill them.
  2. Check whether the input command is correct. RCS analysis requires setting several parameters, such as cutoff values, reference groups, and so on. If you enter a command incorrectly, the program may not run correctly. Refer to the official STATA documentation or other tutorials to check that the commands are correct.
  3. If the problem persists, try other methods of analysis, such as linear regression, logistic regression, and so on. These methods can also be used to explore the relationships between variables and may provide more useful information.

Hopefully these solutions will help you solve the problem. If you are still in doubt, please provide more details so that you can better understand the problem.

damxjlz 注册会员
2023-02-25 13:26

Part of the answer refers to GPT,
STATA RCS value -1.6 of ages_score1m is not observed because an error is reported when the value of some variable is out of the possible range. In STATA, this error message occurs when the value of a variable is outside its possible range. To solve this problem, we need to check the value of the ages_score1m variable to see if it is out of its possible range.

We can check the range of the ages_score1m variable with the following code:

tabulate ages_score1m,missing

, we can determine whether the ages_score1m variable has an incorrect value based on the information printed above. If so, we have to correct these incorrect values. In general, in STATA, we can use the replace command to correct incorrect values:

replace ages_score1m=value if inlist(ages_score1m, value1, value2, ...)

where value is the correct value you want to replace the incorrect value with, value1, value2,... That's the incorrect value that you're replacing.

Of course, you can also use STATA's generate command to create a new variable to store the new value of ages_score1m:

generate new_variable = value if inlist(ages_score1m, value1, value2, ...)

This results in a new variable, new_variable, which contains the original correct value of ages_score1m and the correct value you added manually.

In a word, the value 1.6 of ages_score1m not observed error message when STATA does RCS is because some value of ages_score1m is out of its possible range. To solve this problem, We need to check if there is an incorrect value in ages_score1m, and if so, use the replace or generate command to replace the incorrect value with the correct one.
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