getSymbols() quantmod library doubt

Hello everyone,

I solved the problem! I had nothing to do with any of the aspects
explained.  It might seem even funny to some...
My lack of in depth knowledge about the R platform was the culprit.  I
didn't know R kept all the workspace symbols between sessions if saved.
Thus, there was some kind of mess with them. My apologies.

The solution was very simple: rm(list = ls()).  Everything works fine just
a before with the functions I developed originally.  In order to guarantee
it doesn't happen again I put this command first in the startup
configuration and in the .Last function of the .Rprofile.

Regards,

--
Andr? Luiz Tietbohl Ramos, PhD.

Em seg., 29 de dez. de 2025 ?s 17:58, Enrico Schumann <es at enricoschumann.net>
escreveu:

On Mon, 29 Dec 2025, Andre Luiz Tietbohl Ramos writes:

Em seg., 29 de dez. de 2025 ?s 10:25, Enrico Schumann <es at enricoschumann.net>
escreveu:

Could you please post a small, reproducible example (in plain
text)?  Otherwise, it will be hard so see where your problem
lies.


kind regards
    Enrico

Hello,

Thanks for the interest, Enrico. It is below.
R> tickers
 "AALR3.SA"  "AGRO3.SA"  "ALPA3.SA"  "ALPA4.SA"  "ALUP11.SA" "AMER3.SA"

"

AMOB3.SA"  "ANIM3.SA"  "ASAI3.SA"  "AURE3.SA"  "AZUL4.SA"  "B3SA3.SA" "
BAUH4.SA"  "BAZA3.SA"  "BBAS3.SA"  "BBDC4.SA"  "BBSE3.SA"  "BDLL4.SA"  "
BEES3.SA"  "BIDU34.SA" "BLAU3.SA"  "BMOB3.SA"  "BPAC11.SA" "BPAN4.SA" "
BRAP4.SA"  "BRFS3.SA"  "BRKM5.SA"  "BRSR6.SA"  "BRST3.SA"  "BSLI3.SA"  "
CBAV3.SA"  "CEAB3.SA"  "CEBR3.SA"  "CMIG3.SA"  "CMIG4.SA"  "CMIN3.SA" "
COPH34.SA" "CPFE3.SA"  "CPLE6.SA"  "CRPG5.SA"  "CSAN3.SA"  "CSED3.SA"  "
CSMG3.SA"  "CSNA3.SA"  "CSUD3.SA"  "CXSE3.SA"  "CYRE3.SA"
...
R>
R> getSymbols(tickers, src = "yahoo", from = start, to = end, maxgap =

10,

auto.asign = TRUE)
R>
R> tickers <- mget(ls(pattern = paste(tickers, collapse = "|")))
R>
R> names(tickers)
  [1] "AALR3.SA"              "AFHI11.SA"             "AGRO3.SA"
   "ALPA3.SA"              "ALPA4.SA"              "ALUP11.SA"
  [7] "AMER3.SA"              "AMOB3.SA"              "ANIM3.SA"
   "ASAI3.SA"              "AURE3.SA"              "AZUL4.SA"
 [13] "B3SA3.SA"              "BAUH4.SA"              "BAZA3.SA"
   *"BBAS3.SA <http://BBAS3.SA>"              "BBAS3.SA_log_returns"
 "BBAS3.SA_mean_log"   *
 [19] "BBAS3.SA_sd_log"       "BBDC4.SA"              "BBSE3.SA"
 "BBSE3.SA_log_returns"  "BBSE3.SA_mean_log"     "BBSE3.SA_sd_log"
 [25] "BDLL4.SA"              "BEES3.SA"              "BIDU34.SA"
  "BLAU3.SA"              "BMOB3.SA"              "BPAC11.SA"
 [31] "BPAN4.SA"              "BRAP4.SA"              "BRFS3.SA"
   "BRKM5.SA"              "BRSR6.SA"              "BRST3.SA"
...
R> class(tickers$BBAS3.SA)
[1] "xts" "zoo"
R> colnames(tickers$BBAS3.SA)
[1] "BBAS3.SA.Open"     "BBAS3.SA.High"     "BBAS3.SA.Low"
 "BBAS3.SA.Close"    "BBAS3.SA.Volume"   "BBAS3.SA.Adjusted"
R> class(tickers$BBAS3.SA_log_returns)
[1] "xts" "zoo"
R>  colnames(tickers$BBAS3.SA_log_returns)
[1] "daily.returns"
R> class(tickers$BBAS3.SA_mean_log)
[1] "numeric"
R> R> colnames(tickers$BBAS3.SA_mean_log)
NULL  (as expected)
R>

Therefore the list I get from the mget operation above contains several
elements with different types, which may include even _sd_ columns as

well.

My objective is to get rid of the .SA suffix used for Brazilian stocks in
all elements downloaded as well as their columns.  I chose to put
everything in a list and operate on it.

[...]

Like Eric, I cannot reproduce your result. In addition
to Dirk's suggestions for debugging:

 i) start from a clean session (no workspace-loading);

ii) since your column 'tickers$BBAS3.SA_log_returns' is named
    "daily.returns" -- any chance you are (accidentally) calling
    'quantmod::dailyReturn' in your code?

--
Enrico Schumann
Lucerne, Switzerland
https://enricoschumann.net