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-rw-r--r--R/estUtil.R2
1 files changed, 1 insertions, 1 deletions
diff --git a/R/estUtil.R b/R/estUtil.R
index 9b3c10b..2aadc0e 100644
--- a/R/estUtil.R
+++ b/R/estUtil.R
@@ -154,7 +154,7 @@ oeGrad <- function(theta,e,dots){
if(!is.null(e)){
filt1 <- signal::Arma(b=1,a=c(1,theta[nb+1:nf,]))
- grad <- apply(X,2,filter,filt=filt1)
+ grad <- apply(X,2,signal::filter,filt=filt1)
l$grad <- grad
}