Search Results
| Search type | Search syntax |
|---|---|
| Tags | [tag] |
| Exact | "words here" |
| Author |
user:1234 user:me (yours) |
| Score |
score:3 (3+) score:0 (none) |
| Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
| Views | views:250 |
| Code | code:"if (foo != bar)" |
| Sections |
title:apples body:"apples oranges" |
| URL | url:"*.example.com" |
| Saves | in:saves |
| Status |
closed:yes duplicate:no migrated:no wiki:no |
| Types |
is:question is:answer |
| Exclude |
-[tag] -apples |
| For more details on advanced search visit our help page | |
Results tagged with trend
Search options not deleted
user 241130
An observable pattern in the data.
2
votes
1
answer
743
views
How to detrend exponential time series in R?
In R, when I see a linear trend, I use diff() function. Which, if I had the time series in a sheet of paper, I see it like "flipping the paper".
I checked ? … diff hoping for a parameter, but there isn't one... is there an R function to achieve detrending for an exponential trend? …
- 809
8
votes
1
answer
11k
views
Shall we use log(diff(x)) or diff(log(x))?
Generally, I use diff() for, let's say there is an upward trend like inflation... and I use log() to stabilise the variance. …
- 809