Issue of variable numeric_date not found

[ALKEBSEE RADWAN]

Dear all,
I hope you all fine.
I was trying to run the GMM appraoch. But, all of a sudden i got the following error message

variable numeric_date not found

Here is how my data looks like

[CODE]
* Example generated by -dataex-. To install: ssc install dataex
clear
input double code float year byte asr float(CS2010 fsize roa btm)
1 2009  .            .         .      .      .
1 2010  0    -.1812835  26.91781  .0086  .9739
1 2011  0   -.09384886  26.91781  .0083  .9978
1 2012  0    .01239697  26.91781  .0084  1.001
1 2013  0    .04447984  26.91781  .0081 1.0042
1 2014 -1    .08613512  26.91781  .0091  .9807
1 2015  0    .05611029  26.91781  .0087  .9967
1 2016 -1    .03977427  26.91781  .0077 1.0134
1 2017  0  -.036704797  26.91781  .0071  .9981
1 2018 -1    .03907964  26.91781  .0073 1.0237
1 2019  0     .1366042  26.91781  .0072  .9984
1 2020  0    -.1798956  26.91781  .0065  .9975
1 2021  0 -.0091083525  26.91781  .0074 1.0156
1 2022 -1  -.003396444  26.91781  .0086 1.0349
2 2009  .            .         .      .      .
2 2010  0   -.03545101 26.096867   .041  .8581
2 2011  0   .009062899  26.41433  .0392  .9591
2 2012  0    .04767007  26.66028  .0413  .9286
2 2013  0    .04062706 26.895393  .0382 1.0323
2 2014  0    .03774613  26.91781  .0379   .939
2 2015 -1  .0026975295  26.91781  .0425  .8387
2 2016 -2   .028906615  26.91781  .0341  .9354
2 2017  0  -.027155485  26.91781  .0319  .8945
2 2018 -1 .00048926205  26.91781  .0322  .9845
2 2019  0  -.006578347  26.91781  .0319  .9558
2 2020 -1   .029122064  26.91781  .0317 1.0074
2 2021  0    .04630307  26.91781  .0196 1.0756
2 2022  0   .007986886  26.91781  .0214 1.1012
4 2010  .   -.20119205  19.13629  .1097   .173
4 2011  .     .0814125  19.13629  .0468  .2665
4 2012  .   .006461412  19.13629  .0405  .2639
4 2013  .   -.02512043 19.305077  .0239  .2253
4 2014  .    .16615257  19.63939  .0462  .2275
4 2015  .  -.062913224 19.803654  .0172  .1122
4 2016  .     .0314415  19.22589  .1775  .1122
4 2017  .     .1792767 19.409643  .0219  .1383
4 2018  .  -.020326355   19.6768 -.0615  .2342
4 2019  .     .6610339  21.12505 -.0024  .7522
4 2020  .     .6610339  21.17023  .0396  .6108
4 2021  .     .0525138  20.82814 -.3875  .4171
4 2022  .     .6610339  20.17056 -.3875  .4131
5 2010  .   -.06242976   20.9807 -.0034  .3257
5 2011  .    .17559874 20.954844  .0091      .
5 2012  .    .11675888  21.00067  .0167  .3937
5 2013  .      .163085  20.89609 -.0356  .4172
5 2014  .    .09898437  21.03564  .0316  .3075
5 2015  .   -.13642953 21.508997 -.0246  .2126
5 2016  2    -.4694616  21.65039  .0463  .3354
5 2017  .   -.08594805  21.79214  .0079  .5211
5 2018  .   -.06314425 21.861555  .0502  .7342
5 2019  .   -.10533735 21.832436  .0589  .6649
5 2020  .    .12670042 21.620495 -.1575  .6448
5 2021  .   .014900815 21.629255  .0564  .7207
5 2022  .   .021094015  21.67962 -.0619  .7977
6 2009  .            .         .      .      .
6 2010  0  -.011798893 22.871336  .0579  .7622
6 2011  2     .0309588 22.842165  .0522  .8794
6 2012  0  -.027621893  22.95794  .0674  .7713
6 2013  0   -.04230814  23.02266    .07  .8029
6 2014  2    .11783935 23.187393  .0436  .6909
6 2015  1  -.026385363 23.265144  .0345  .5368
6 2016  1    .00509106 23.301237   .061  .6341
6 2017  2   -.08107214  23.29892  .0624      .
6 2018  .   -.08981244  23.32867  .0682  .9572
6 2019  2  -.008570627  23.47981  .0535  .9958
6 2020  .    .04945006  23.45989  .0585 1.0174
6 2021  .   .005063325 23.884556  .0235 1.1009
6 2022  .    .10843694 23.996593   .017  .9987
7 2010  .    -.4633431 19.621914  .0653  .1708
7 2011  .   -.05251282   19.7083  .0229  .2694
7 2012  2   -.05656573  20.48714  .0056  .2447
7 2013  0    .04938684 20.303974  .0286  .2236
7 2014  .    .03727166  20.33896  -.049  .2022
7 2015  .   .064063914 19.990055  .0276  .1122
7 2016  .   -.05664808  20.05845  .1586  .1122
7 2017  .  -.003435775  19.90835  .0018      .
7 2018  .    -.4694616 20.115765 -.3602  .1904
7 2019  .    -.3266199  20.09533  .0417  .1628
7 2020  .    -.1670125 19.713747 -.3377  .1483
7 2021  .   .015233782  19.88397  .0934  .1953
7 2022  .    .09431347 19.685333 -.0179  .1328
8 2010  .   -.05516718  19.13629  .0114  .1122
8 2011  .   .027453694  19.13629  -.007  .1495
8 2012  2  .0001571772  20.23523  .0637  .5376
8 2013  .    .04195993  20.25586  .0363  .3732
8 2014  0    .03497356 20.328783  .0115  .1853
8 2015  2   -.36459255  22.00124  .0529  .3463
8 2016  0   -.02718297 22.826504  .0648  .4348
8 2017  0    .05695187  23.09148  .0833  .4616
8 2018  2    .10180917  23.07143  .0327  .7643
8 2019  1   .024855325  23.21188   .038   .835
8 2020  1    .28303105  23.27492 -.0695  .9714
8 2021  .    .08162877 23.239305 -.1114  .8182
8 2022  .    .05576044 23.143463 -.0753  .8584
9 2009  .            .         .      .      .
9 2010  0  -.033617415  23.02831  .0441  .4115
9 2011  1   .005548148  23.19015  .0323  .6052
9 2012  .    .04145785  23.30131  .0233  .7307
9 2013  2   .001680309 23.334204  .0326  .6691
9 2014  2   .020074897 23.412846  .0321  .5147
end
[/CODE]

Please what do you think the problem is?

I run the OLS model normal using the same variables

I need help

[Nick Cox]

There is no numeric_date variable in your data example. But what did you type as a command, exactly?

[ALKEBSEE RADWAN]

There is no numeric_date variable in your data example. But what did you type as a command, exactly?

Here is my command

xtabond2 asr l.asr CS2010 Bsize  BINDP meeting execOwner size ROAA btm loss SOE Debt big4 MSE1, gmm(asr CS2010 Bsize  BINDP meeting execOwner size ROAA btm loss SOE Debt big4 MSE1 , lag(0 2)) iv(l.asr CS2010 Bsize  BINDP meeting execOwner size ROAA btm loss SOE Debt big4 MSE1, eq(level)) twostep

there is alos the year and indusrty variables as well

[ALKEBSEE RADWAN]

There is no numeric_date variable in your data example. But what did you type as a command, exactly?

Also, please how i create such a variable, although I have it with name of "year"

[Nick Cox]

xtabond2 is from SSC. Are you saying that it insists on a variable called numeric_date being used?

Perhaps you previously xtset your dataset in terms of a variable called numeric_date. If so, it seems that you should re-issue xtset with the names of appropriate variables.

[ALKEBSEE RADWAN]

xtabond2 is from SSC. Are you saying that it insists on a variable called numeric_date being used?

Perhaps you previously xtset your dataset in terms of a variable called numeric_date. If so, it seems that you should re-issue xtset with the names of appropriate variables.

I have run the xtset code i got the same error

.  xtset
variable numeric_date not found

So, how to re-issue xtset with the names of appropriate variables, please

[Nick Cox]

help xtset

gives examples. In your case perhaps you need

xtset code year

[ALKEBSEE RADWAN]

help xtset

gives examples. In your case perhaps you need

xtset code year

thank you very much
it is solved now