rdplot error message with continuous dependent variable

[Halim Yoon]

Hello everyone,

I am using a rdplot command. When I put binary dependent variable, it perfectly works. However, when I put continuous dependent variable, an error message like this pops up:

cross(): 3200 conformability error
<istmt>: - function returned error

I don't know why this problem happens and I don't know I can solve this problem. Is rdplot command not allowed for continuous dependent variable?

Thank you so much!!

[Hemanshu Kumar]

rdplot works fine with a continuous dependent variable. For instance:

. sysuse auto, clear
(1978 automobile data)

. rdplot price mpg, c(20)

RD Plot with evenly spaced mimicking variance number of bins using spacings estimators.

        Cutoff c = 20 | Left of c  Right of c        Number of obs  =         74
----------------------+----------------------        Kernel         =    Uniform
        Number of obs |        35          39
   Eff. Number of obs |        35          39
  Order poly. fit (p) |         4           4
     BW poly. fit (h) |     8.000      21.000
 Number of bins scale |     1.000       1.000

Outcome: price. Running variable: mpg.
---------------------------------------------
                      | Left of c  Right of c
----------------------+----------------------
        Bins selected |         6           5
   Average bin length |     1.333       4.200
    Median bin length |     1.333       4.200
----------------------+----------------------
    IMSE-optimal bins |         5           4
  Mimicking Var. bins |         6           5
----------------------+----------------------
Rel. to IMSE-optimal: |
        Implied scale |     1.200       1.250
    WIMSE var. weight |     0.367       0.339
    WIMSE bias weight |     0.633       0.661
---------------------------------------------

Please provide the exact command you are using (enclosed within CODE delimiters) and a sample of your data (using the dataex command), for others to be able to help you better.