I am trying to create a running average by group
For example, i want to start creating the average of 2 continuous numbers when it starts with value of 170. However, if it first hits 170 and then >=200 then another >=200, i want to start average of those three. if not, just the average of two is fine.
Here's an example
ID | value | seq_id |
1 | 150 | 1 |
1 | 190 | 2 |
1 | 205 | 3 |
1 | 210 | 4 |
1 | 150 | 5 |
2 | 169 | 1 |
2 | 175 | 2 |
2 | 150 | 3 |
2 | 144 | 4 |
3 | 200 | 1 |
3 | 201 | 2 |
3 | 199 | 3 |
Here's the output I am looking for:
ID | value | seq_id | avg |
1 | 150 | 1 | |
1 | 190 | 2 | 202 |
1 | 205 | 3 | |
1 | 210 | 4 | |
1 | 150 | 5 | |
2 | 169 | 1 | |
2 | 175 | 2 | 163 |
2 | 150 | 3 | |
2 | 144 | 4 | |
3 | 190 | 1 | 196 |
3 | 201 | 2 | |
3 | 185 | 3 |
Thank you!
Rules seem not entirely clear to me.
1. What if you have more than 2 groups within the same id, do you only count the first one?
2. What if you have more than 2 obs that are >=200 after the first >=170. Are they going to the first group or you kick off a new group/just ignore it?
3. What if first >=170 hitting the bottom, do you consider itself as the average or ignore it?
Hi!
1. Each ID is unique but have multiple entries. so we count the first occurence of >=170 onwards
2. Yes, it'd be helpful to extract them into a new dataset if first >=170 then second >=200 and then the third is >=200
3. If the last row for that ID is >=170, new dataset would be helpful!
Thank you!!
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