From 61d2ff6d6eabf22b5bb57bbaa2c659ca087d2266 Mon Sep 17 00:00:00 2001
From: jangorecki <j.gorecki@wit.edu.pl>
Date: Sat, 21 Apr 2018 09:34:17 +0530
Subject: [PATCH] roll.md moved to gh issue #2778

---
 roll.md | 53 -----------------------------------------------------
 1 file changed, 53 deletions(-)
 delete mode 100644 roll.md

diff --git a/roll.md b/roll.md
deleted file mode 100644
index 87a2c2e0a..000000000
--- a/roll.md
+++ /dev/null
@@ -1,53 +0,0 @@
-
-## rolling functions
-
-- [ ] rollmean
-- [ ] rollsum
-- [ ] rollmin
-- [ ] rollmax
-- [ ] rollmedian
-- [ ] rollprod
-- [ ] rollfdi (roughness statistic)
-- [ ] rollapply (user provided FUN)
-- [ ] rollsd
-- [ ] rollvar
-
-## rolling features
-
-- [ ] align: left/center/right
-- [ ] fill constant
-- [ ] adaptive window
-- [ ] fill na.locf
-
-## rollmean implementation notes
-
-```r
-x = list(v1=1:5, v2=1:5)
-k = c(2, 3)
-```
-
-i - single column
-j - single window
-m - single row
-w - current row's sum of rolling window
-
-```
-for (i in x)
-  for (j in k)
-    for (m in 1:length(i)) {
-      w += i[m]
-      w -= i[m-j]
-      ans[m] = w / j
-    }
-```
-
-## validation
-
-- [ ] validate against zoo (already in suggested dependency)
-
-## benchmark
-
-- [ ] TTR::runMean
-- [ ] RcppRoll::roll_mean
-- [ ] caTools::runmean
-- [ ] RollingWindow::RollingMean (github.com/andrewuhl/RollingWindow)