X-Git-Url: https://git.auder.net/?p=talweg.git;a=blobdiff_plain;f=pkg%2FR%2FJ_Zero.R;fp=pkg%2FR%2FJ_Zero.R;h=16b6ed5fea8710b00824f8c4d306114228436d34;hp=fb15e3d6f498330d1ce550d6f7579cecf4f55271;hb=8f5671db610e1e455b33b54986ac2e57de0da0d7;hpb=97b03431891a14666e7c481523f63d46b9ccee03

diff --git a/pkg/R/J_Zero.R b/pkg/R/J_Zero.R
index fb15e3d..16b6ed5 100644
--- a/pkg/R/J_Zero.R
+++ b/pkg/R/J_Zero.R
@@ -1,6 +1,6 @@
 #' getZeroJumpPredict
 #'
-#' Just predict zero "jump" (for reference, benchmarking at least).
+#' "Reset level to 0": jump by -A where A is the last observed value.
 #'
 #' @inheritParams computeForecast
 #' @param today Index of the current day (predict tomorrow)
@@ -10,5 +10,6 @@
 #'
 getZeroJumpPredict = function(data, today, memory, horizon, params, ...)
 {
-	0
+	list(...)$first_pred - ifelse( predict_from >= 2,
+		data$getSerie(today)[predict_from-1], tail(data$getSerie(today-1),1) )
 }