Dear all,

I have a dataset in a bit oddly shaped. The time (the data is hourly for 30 years) is already in long format but the panels IDs (more than 250) represent the value of one variable.

How can I reshape this to a regular long form dataset? Any help will be greatly appreciated. Thank you.

Code:
* Example generated by -dataex-. To install: ssc install dataex
clear
input long(year month day hour) double(PL41 ES21 PL32 UKK1 PL34)
1986 1 1  1 .02459 .21347 .07598 .54705 .16948
1986 1 1  2 .01484 .20183 .08367 .44395 .16234
1986 1 1  3 .00972   .198 .09651 .29984 .15206
1986 1 1  4 .00983 .21373  .0896 .18699 .14123
1986 1 1  5 .00855 .25338 .08422 .06668 .12608
1986 1 1  6 .01072 .32322 .09259 .04675 .11158
1986 1 1  7 .01695 .39983 .09248 .05119 .09848
1986 1 1  8 .02895 .46698 .11102 .07198 .08874
1986 1 1  9 .03292 .54667   .124 .17523 .05779
1986 1 1 10 .02148 .56828 .12769 .28923 .03377
end
label values hour hour
label def hour 1 "00:00:00", modify
label def hour 2 "01:00:00", modify
label def hour 3 "02:00:00", modify
label def hour 4 "03:00:00", modify
label def hour 5 "04:00:00", modify
label def hour 6 "05:00:00", modify
label def hour 7 "06:00:00", modify
label def hour 8 "07:00:00", modify
label def hour 9 "08:00:00", modify
label def hour 10 "09:00:00", modify
Sincerely,

Chiara