Joseph Coveney wrote:
> There's undoubtedly something obvious why the numlist below doesn't give me
> five groups of four each. Can anyone point out where I'm going wrong?
>
I'd say not obvious, and also point out that -x- and -y- are
irrelevant:
. clear
. set obs 20
obs was 0, now 20
. egen group=fill(1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5)
. list, noobs sepby(group)
+-------+
| group |
|-------|
| 1 |
| 1 |
| 1 |
| 1 |
|-------|
| 2 |
| 2 |
| 2 |
| 2 |
|-------|
| 3 |
| 3 |
| 3 |
| 3 |
| 3 |
| 3 |
|-------|
| 4 |
| 4 |
| 4 |
| 4 |
|-------|
| 5 |
| 5 |
+-------+
.
Looks like a bug. However, -fill- really just needs to get the
pattern started, so you'll find that:
. egen group=fill(1 1 1 1 2 2 2 2 )
will do what you need.
hth,
Jeph
Joseph Coveney
. set seed `=date("2006-12-03", "ymd")'
. drawnorm y x, corr(1 0.5 \ 0.5 1) n(20) clear
(obs 20)
. sort x
. egen byte group = fill(1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5)
. list, noobs sepby(group)
+-------------------------------+
| y x group |
|-------------------------------|
| -1.04372 -2.458569 1 |
| -.6301845 -1.53749 1 |
| -.4474874 -1.227146 1 |
| -.538601 -1.158167 1 |
|-------------------------------|
| .0999929 -1.140627 2 |
| -.7626165 -1.040885 2 |
| -.8379411 -.9000927 2 |
| -1.199746 -.8086246 2 |
|-------------------------------|
| -.2398437 -.6472539 3 |
| .4926107 -.6277131 3 |
| .3099134 -.5799699 3 |
| .7792414 -.4452717 3 |
| .5397932 -.1693323 3 |
| .6346364 -.1348845 3 |
|-------------------------------|
| -.3965632 -.0002388 4 |
| -.3926637 .1616845 4 |
| -.3358584 .2037638 4 |
| -.5474986 .5839815 4 |
|-------------------------------|
| .1766358 .701948 5 |
| .085008 .8024728 5 |
+-------------------------------+
.
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