Error when performing an NA replacement in R 4.0

With R 3.6 I can perform the following NA replacement

> d <- zoo(data.frame(a = NA, b = 1), Sys.Date())  > d[is.na(d)] <- 1  > d             a b  2021-03-03 1 1  

With R 4.0 I get the following error:

> d <- zoo(data.frame(a = NA, b = 1), Sys.Date())  > d[is.na(d)] <- 1  Error in as.Date.default(e) :     do not know how to convert 'e' to class "Date"  

Has some default behavior changed in R 4.0?

R 3.6 session info:

Microsoft Windows [Version 10.0.19041.804]  (c) 2020 Microsoft Corporation. All rights reserved.    C:\>R --no-site-file    R version 3.6.1 (2019-07-05) -- "Action of the Toes"  Copyright (C) 2019 The R Foundation for Statistical Computing  Platform: i386-w64-mingw32/i386 (32-bit)    R is free software and comes with ABSOLUTELY NO WARRANTY.  You are welcome to redistribute it under certain conditions.  Type 'license()' or 'licence()' for distribution details.      Natural language support but running in an English locale    R is a collaborative project with many contributors.  Type 'contributors()' for more information and  'citation()' on how to cite R or R packages in publications.    Type 'demo()' for some demos, 'help()' for on-line help, or  'help.start()' for an HTML browser interface to help.  Type 'q()' to quit R.    > library(zoo)    Attaching package: 'zoo'    The following objects are masked from 'package:base':        as.Date, as.Date.numeric    Warning message:  package 'zoo' was built under R version 4.0.4  > d <- zoo(data.frame(a = NA, b = 1), Sys.Date())  > d[is.na(d)] <- 1  > d             a b  2021-03-03 1 1  

R 4.0 session info:

Microsoft Windows [Version 10.0.19041.804]  (c) 2020 Microsoft Corporation. All rights reserved.    C:\>R --no-site-file    R version 4.0.4 (2021-02-15) -- "Lost Library Book"  Copyright (C) 2021 The R Foundation for Statistical Computing  Platform: i386-w64-mingw32/i386 (32-bit)    R is free software and comes with ABSOLUTELY NO WARRANTY.  You are welcome to redistribute it under certain conditions.  Type 'license()' or 'licence()' for distribution details.      Natural language support but running in an English locale    R is a collaborative project with many contributors.  Type 'contributors()' for more information and  'citation()' on how to cite R or R packages in publications.    Type 'demo()' for some demos, 'help()' for on-line help, or  'help.start()' for an HTML browser interface to help.  Type 'q()' to quit R.    > library(zoo)    Attaching package: 'zoo'    The following objects are masked from 'package:base':        as.Date, as.Date.numeric    > d <- zoo(data.frame(a = NA, b = 1), Sys.Date())  > d[is.na(d)] <- 1  Error in as.Date.default(e) :    do not know how to convert 'e' to class "Date"  

Session Info (3.6):

> sessionInfo()  R version 3.6.1 (2019-07-05)  Platform: i386-w64-mingw32/i386 (32-bit)  Running under: Windows 10 x64 (build 19041)    Matrix products: default    locale:  [1] LC_COLLATE=English_United States.1252  [2] LC_CTYPE=English_United States.1252  [3] LC_MONETARY=English_United States.1252  [4] 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] zoo_1.8-8    loaded via a namespace (and not attached):  [1] compiler_3.6.1  grid_3.6.1      lattice_0.20-38  

Session Info (4.0):

> sessionInfo()  R version 4.0.4 (2021-02-15)  Platform: i386-w64-mingw32/i386 (32-bit)  Running under: Windows 10 x64 (build 19041)    Matrix products: default    locale:  [1] LC_COLLATE=English_United States.1252  [2] LC_CTYPE=English_United States.1252  [3] LC_MONETARY=English_United States.1252  [4] 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] zoo_1.8-8    loaded via a namespace (and not attached):  [1] compiler_4.0.4  tools_4.0.4     grid_4.0.4      lattice_0.20-41  

https://stackoverflow.com/questions/66468254/error-when-performing-an-na-replacement-in-r-4-0 March 04, 2021 at 11:44AM