Isn't this like trying to tie up the horse after it has left the barn? Why not figure all this out _before_ converting to xts?
On April 12, 2023 12:29:49 PM PDT, akshay kulkarni <akshay...@hotmail.com> wrote: >Dear Rui, > Not working. I have entirely removed the column containing % > but am still bootless: > >> head(coredata(INFYTX)) > INFY Historical Data INFY Historical Data INFY Historical Data INFY > Historical Data >[1,] "47.26" "44.28" "47.56" "44.28" >[2,] "46.30" "44.92" "46.53" "44.06" >[3,] "45.82" "47.27" "47.50" "45.63" >[4,] "45.62" "46.06" "46.16" "44.73" >[5,] "45.05" "46.28" "46.50" "44.77" >[6,] "45.28" "44.80" "46.84" "44.53" > INFY Historical Data >[1,] "1805267" >[2,] "1536300" >[3,] "887774" >[4,] "944036" >[5,] "759898" >[6,] "1185402" >> class(coredata(INFYTX)) <- "numeric" >> head(coredata(INFYTX)) > INFY Historical Data INFY Historical Data INFY Historical Data INFY > Historical Data >[1,] "47.26" "44.28" "47.56" "44.28" >[2,] "46.3" "44.92" "46.53" "44.06" >[3,] "45.82" "47.27" "47.5" "45.63" >[4,] "45.62" "46.06" "46.16" "44.73" >[5,] "45.05" "46.28" "46.5" "44.77" >[6,] "45.28" "44.8" "46.84" "44.53" > INFY Historical Data >[1,] "1805267" >[2,] "1536300" >[3,] "887774" >[4,] "944036" >[5,] "759898" >[6,] "1185402" > >THanking you, >Yours sincerely, >AKSHAY M KULKARNI > >________________________________ >From: Rui Barradas <ruipbarra...@sapo.pt> >Sent: Thursday, April 13, 2023 12:46 AM >To: akshay kulkarni <akshay...@hotmail.com>; R help Mailing list ><r-help@r-project.org> >Subject: Re: [R] converting a character matrix into numeric.... > >�s 19:57 de 12/04/2023, akshay kulkarni escreveu: >> Dear members, >> I have an xts object: >> >>> head(INFYTX) >> INFY Historical Data INFY Historical Data.1 INFY Historical >> Data.2 >> 2003-04-16 "47.26" "44.28" "47.56" >> 2003-04-17 "46.30" "44.92" "46.53" >> 2003-04-21 "45.82" "47.27" "47.50" >> 2003-04-22 "45.62" "46.06" "46.16" >> 2003-04-23 "45.05" "46.28" "46.50" >> 2003-04-24 "45.28" "44.80" "46.84" >> INFY Historical Data.3 INFY Historical Data.4 >> 2003-04-16 "44.28" "1805267" "5.77%" >> 2003-04-17 "44.06" "1536300" "-2.03%" >> 2003-04-21 "45.63" "887774" "-1.04%" >> 2003-04-22 "44.73" "944036" "-0.44%" >> 2003-04-23 "44.77" "759898" "-1.25%" >> 2003-04-24 "44.53" "1185402" "0.51%" >> >> But it is populated with character values and I want to convert them to >> numeric. THe following code doesn't work: >> >>> head(coredata(INFYTX)) >> INFY Historical Data INFY Historical Data.1 INFY Historical Data.2 >> INFY Historical Data.3 >> [1,] "47.26" "44.28" "47.56" >> "44.28" >> [2,] "46.30" "44.92" "46.53" >> "44.06" >> [3,] "45.82" "47.27" "47.50" >> "45.63" >> [4,] "45.62" "46.06" "46.16" >> "44.73" >> [5,] "45.05" "46.28" "46.50" >> "44.77" >> [6,] "45.28" "44.80" "46.84" >> "44.53" >> INFY Historical Data.4 >> [1,] "1805267" "5.77%" >> [2,] "1536300" "-2.03%" >> [3,] "887774" "-1.04%" >> [4,] "944036" "-0.44%" >> [5,] "759898" "-1.25%" >> [6,] "1185402" "0.51%" >> >>> class(coredata(INFYTX)) >> [1] "matrix" "array" >>> class(coredata(INFYTX)) <- "numeric" >> Warning message: >> In class(coredata(INFYTX)) <- "numeric" : NAs introduced by coercion >>> class(coredata(INFYTX)) >> [1] "matrix" "array" >>> head(coredata(INFYTX)) >> INFY Historical Data INFY Historical Data.1 INFY Historical Data.2 >> INFY Historical Data.3 >> [1,] "47.26" "44.28" "47.56" >> "44.28" >> [2,] "46.3" "44.92" "46.53" >> "44.06" >> [3,] "45.82" "47.27" "47.5" >> "45.63" >> [4,] "45.62" "46.06" "46.16" >> "44.73" >> [5,] "45.05" "46.28" "46.5" >> "44.77" >> [6,] "45.28" "44.8" "46.84" >> "44.53" >> INFY Historical Data.4 >> [1,] "1805267" NA >> [2,] "1536300" NA >> [3,] "887774" NA >> [4,] "944036" NA >> [5,] "759898" NA >> [6,] "1185402" NA >> >> Why is the coredata matrix not changing to numeric when the class is changed >> to numeric? How else to convert coredata into numeric? >> >> THanking you, >> Yours sincerely, >> AKSHAY M KULKARNI >> >> [[alternative HTML version deleted]] >> >> ______________________________________________ >> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html >> and provide commented, minimal, self-contained, reproducible code. >Hello, > >Those NA come from trying to coerce character strings with "%" to numeric. > >Try instead to first remove the unwanted characters. > > > >mat <- matrix(c(0.1, 0.2, "5.77%", "-2.03%"), ncol = 2L) > >mat[] <- apply(mat, 2, \(x) sub("%", "", x)) >class(mat) <- "numeric" >mat >#> [,1] [,2] >#> [1,] 0.1 5.77 >#> [2,] 0.2 -2.03 > > >Hope this helps, > >Rui Barradas > > > [[alternative HTML version deleted]] > -- Sent from my phone. Please excuse my brevity. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
