[R] How to turn off warnings about class name conflicts

[Ayhan yuksel]

Hi,

I am using two packages (quantmod and FRAPO)

Quantmod and FRAPO both have a class names "zoo"

R is displaying the following warning when I manipulate an object of class
zoo:

Found more than one class "zoo" in cache; using the first, from namespace
'quantmod'
Also defined by ‘FRAPO’

The warning is displayed every time I manipulate a zoo object and becomes
pretty annoying.

I searched for a solution but couldn't found.

A related but unanswered question is here:
http://r.789695.n4.nabble.com/setOldClass-quot-xts-quot-td4714332.html

How can I turn off the warning?

Reproducible example:

library(quantmod)
library(FRAPO)
z<-zoo(runif(100),1:100)


Session Info (I am using Microsoft R):

R version 3.4.3 (2017-11-30)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows >= 8 x64 (build 9200)

Matrix products: default

locale:
[1] LC_COLLATE=English_United States.1252  LC_CTYPE=English_United
States.1252
[3] LC_MONETARY=English_United States.1252 LC_NUMERIC=C

[5] LC_TIME=English_United States.1252

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

other attached packages:
 [1] FRAPO_0.4-1           timeSeries_3022.101.2 timeDate_3012.100
 Rglpk_0.6-2
 [5] slam_0.1-40           cccp_0.2-4            quantmod_0.4-12
 TTR_0.23-2
 [9] xts_0.10-1            zoo_1.8-0             RevoUtils_10.0.7
RevoUtilsMath_10.0.1

loaded via a namespace (and not attached):
[1] Rcpp_0.12.10     lattice_0.20-35  codetools_0.2-15 grid_3.4.3
 curl_3.1
[6] tools_3.4.3      compiler_3.4.3

	[[alternative HTML version deleted]]