Standardize variables with designated mean and SD

[Yapeng Wang]

Hi, I have a standardized variable in my data, but the standardized variable is hard to interpret (see a summary in the picture). I want to re-standardize this variable by a designated mean of 50 and standard deviation of 10 by using the egen command. But the STATA (14.2) shows the following errors, could anyone help me out? Thanks!

The STATA output:

. egen stdscore=std(cog3pl) [, mean(50) std(10)]
weights not allowed
r(101);

The data

* Example generated by -dataex-. To install: ssc install dataex
clear
input float cog3pl
  .128507
 1.235879
  .083937
 -.522185
  .036172
  .247188
 1.119603
  .938166
 -.944188
  1.12942
  .504442
 -.636827
  .599695
 1.227446
  .364622
 1.543919
  .508021
   .62899
  .421879
 -.146026
   .58851
 -.291137
  .878521
  .058442
  .468513
 1.466815
 1.350555
  .852585
 -.355217
  .757817
 -.042532
  .580181
 1.211923
 -.498497
 1.066475
  .633334
  .980748
  .414249
 1.007716
  .967812
  .348596
 -.146026
 -.182904
 1.525641
  .836506
  .264453
 -.710774
  .411819
  .836878
  .090278
 -.335539
 -.097986
 1.211923
  .331569
-1.101023
 1.456134
 1.198598
 1.621865
  .822771
  .209975
 1.045911
  .036848
  .713518
 1.212803
  .704509
-1.803628
  .322971
 -.158247
  .959742
 1.033147
 -.049032
 1.059551
   .79829
  .938166
 -.783733
  .200613
 1.349313
 1.383719
  .860087
  .536033
  .483642
 1.043612
  .295511
 1.460538
  .067473
  .378723
   .54301
 1.235068
 1.067553
 -.275182
  .329491
  1.38978
  .847831
 1.474833
 1.652636
 1.211923
 1.205036
 1.350555
 -.125119
 -.403901
end

[Nick Cox]

Remove the square brackets. You copied them from the syntax diagram, but they indicate optional elements in the syntax and are not meant to be typed in your command.

[Yapeng Wang]

Remove the square brackets. You copied them from the syntax diagram, but they indicate optional elements in the syntax and are not meant to be typed in your command.

Oh I see. Thank you so much!