[R] read.xlsx - write.xlsx: reading/writing numbers as character

jim holtman jholtman at gmail.com
Thu Jan 14 17:29:16 CET 2016

Take a look at the data coming in since you may have something that looks
like characters (maybe 'blanks').  What you think is numeric in EXCEL might
not be.​

Jim Holtman
Data Munger Guru

What is the problem that you are trying to solve?
Tell me what you want to do, not how you want to do it.

On Thu, Jan 14, 2016 at 11:20 AM, Mohsen Jafarikia <jafarikia at gmail.com>

> Hello:
> I am reading some excel files (each with one sheet) and trying to write
> them all in one file. I am not sure if read.xlsx reads some of the columns
> as character or write.xlsx writes them as character where they are not
> characters. I have 12 columns (2 character and 10 numbers). From 10 number
> columns, with float and integer numbers, only 3 of them are recognized
> correctly. I was wondering how can I define the the column format for
> read.xlsx - write.xlsx.
> Here comes a simple example of my code:
> ifn1 <- "A.xlsx"
> dat1  <- read.xlsx(ifn1, sheetName="A.csv", header = TRUE)
> ifn2 <- "F.xlsx"
> dat2  <- read.xlsx(ifn2, sheetName="F.csv",header = TRUE)
> write.xlsx(dat1,  file="AF.xlsx", sheetName="A",   showNA=FALSE,
> row.names=FALSE, append=FALSE)
> write.xlsx(dat2,  file="AF.xlsx", sheetName="F",   showNA=FALSE,
> row.names=FALSE, append= TRUE)
> Thanks in advance!
> Mohsen
>         [[alternative HTML version deleted]]
> ______________________________________________
> R-help at 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.

	[[alternative HTML version deleted]]

More information about the R-help mailing list