Displaying 20 results from an estimated 10000 matches similar to: "Reading Excel files from within R."
2001 Mar 05
2
Upgrading to new versions of R.
Whenever I update to a new version of R (by downloading the appropriate
binaries from CRAN), I lose whatever functions and datasets I have stored in
the saved workspace of the previous version of R that I was running. Is it
possible to source/input this workspace from the previous version of R into
the new updated version, so I don't lose anything? And if so, where could I
locate the workspace
2001 Apr 09
1
Julian dates
I am using the "chron" package. Can anyone tell me if there is a simple way
to convert a date object (obtained from the "dates" function) into a julian
date (using the "julian" function)?
Thanks, Al.
Al Merrifield
Energy Analyst
Energy Modelling & Statistics
Ministry of Economic Development
PO Box 1473
Wellington
NEW ZEALAND
Phone: (04) 470 2338
Fax: (04)
2010 Oct 18
7
excel parser (preferably perl)?
I'm getting tired of converting spreadsheets that someone else updates
to csv so my perl scripts can push the data into a mysql database. Is
there a better way? I haven't had much luck with
perl-Spreadsheet-ParseExcel (and find it odd that yum prefers the .32
version from epel over .57 from rpmforge anyway). Is the current CPAN
version better? Or the equivalent java tools? Or
2007 Dec 14
1
RJDBC to OpenOffice Calc as RODBC to MS Excel
Under Windows, I have used RODBC to connect to Excel spreadsheets as per
the example below:
library(RODBC);
connect = odbcConnectExcel("testdata.xls");
query = "SELECT [data$.ethn], [data$.sex], [data$.age],
[data$.height], [data$.weight],
[label$.label]
FROM [data$], [label$]
WHERE [data$.ethn] = [label$.ethn];"
data =
2007 Mar 13
2
RODBC Excel sqlQuery insert into
I have searched the archives for using insert into to update spreadsheets
using RODBC and have come up short. So, first off, is it possible?
I have put together a dummy xls table (c:\foo.xls)for exploring
possibilities of RODBC. Ultimately, I am interested in replacing much of
our previous use of vba macros with R ( I'd prefer elimination, but will
take what I can get ). In order to
2006 Jan 10
1
"Missing value representation in Excel before
I reproduce from memory my exhaustive look into this issue.
RODBC uses the Microsoft ODBC DLL's developed by Microsoft.
These DLL's perform an automatic determination of column type based on the contents of the first N rows of cells in each column, where N [0,16]. N may be set in the Windows system registry, and there are a few other things that may be set in the system registry which
2011 Feb 08
1
read.xls counts more rows than I really have in my Excel file
Hi,
i'm using read.xls, and it counts more rows in my Excel than I really have.
i've used both:
especie26 <- read.xls("especie26cargar.xls")
datos26 <- read.xls("especie26cargar.xls", header = TRUE, as.is = FALSE,
na.strings = "NA",
skip = 0, check.names = TRUE, fill = FALSE,
strip.white = FALSE, blank.lines.skip = TRUE)
when i
2007 Apr 18
10
importing excel-file
Dear R-experts,
It is a quite stupid question but please help me. I am very confuced. I
am able to import normal txt ant mat-files to R but unable to import
.xls-file
I do not understand the online help. Can please anyone send me the
corresponding command lines? The .xls-file is attached. In my file we
use commas for the decimal format (example: 0,712), changes might be
needed.
Thanks, Corinna
2007 Jan 17
12
Excel sheet generation
Hi,
Does anyone know of a package that will help with generation of
spreadsheets? (xls files, not csv)
Thanks,
Fredrik
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2011 Jul 08
2
Excel export date format
Hi folks,
I have been tormented for some time by Excel's habit of exporting dates
to CSV files as mm/dd/yyyy format even if the dates are formatted
dd/mm/yyyy in the display. What's worse, if there are dates that are of
ambiguous (6/6/2011) and unambiguous (16/6/2011) format in the same
column, Excel reformats the unambiguous dates and leaves the ambiguous
ones as they were! Yesterday
2008 Apr 19
7
Re ad From EXCEL
Hello!!!
I have been read a much about as read data from Excel File, but I haven?t
found the necesary information to read the data.
Now, I can create a channel : channel <- odbcConnectExcel("file.xls") but I
don?t know as read the data??
I hope that you could help me. Thank you very much.
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2010 Sep 07
5
how to you output a vector to a column in excel?
What is the syntax for this?
If you have: vector = c(1,2,3,4), how would you output this to column A of
an excel spreadsheet?
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2009 Jan 16
6
reading data from Excel Spread sheet
Hi all,
I tried to read data from Excel spread sheet with using
read.csv(file.choose())
and
read.delim(file.choose())
but its showing " *ÐÏ.à.*."
and also i tried with
read.table(file.choose())
then its showing " * V1
1 ÐÏ\021ࡱ* "
can any one suggest how to read data from Excel Spread sheet
2010 Dec 01
2
Problem in reading Excel spreadsheets
Hi folks,
Win 7 64bit
R 2.12.0 32bit
Problem in reading Excel spreadsheets
(the text file, research_databaseI.xls, was download on Internet)
> data=odbcConnectExcel(file.choose())
> sqlTables(data)
TABLE_CAT TABLE_SCHEM
1 C:\\Users\\satimiswin764\\Documents\\research_databaseI <NA>
2
2012 May 15
4
Reading Excel Formulas as values
When I read excel files using the read.xlsx() command any cells that have
formulas in them come up as NA.
Is there a way to read just the numeric value of the cell without using the
"paste value" command in Excel? I need to read in hundreds of Excel
spreadsheets and compile them into one large super spreadsheet
automatically. Hence the reason I cannot reformat each sheet manually.
2005 Nov 02
2
RODBC and Excel: Wrong Data Type Assumed on Import
The first column in my Excel sheet has mostly numbers but I need to treat it
as character data:
> library(RODBC)
> channel <- odbcConnectExcel("U:/efg/lab/R/Plasmid/construct list.xls")
> plasmid <- sqlFetch(channel,"Sheet1", as.is=TRUE)
> odbcClose(channel)
> names(plasmid)
[1] "Plasmid Number" "Plasmid"
2007 Jun 25
7
R-excel
Good morning to everybody,
I have a problem : how can I import excel files in R???
thank you very much
Dr.sa. Erika Frigo
Università degli Studi di Milano
Facoltà di Medicina Veterinaria
Dipartimento di Scienze e Tecnologie Veterinarie per la Sicurezza Alimentare (VSA)
Via Grasselli, 7
20137 Milano
Tel. 02/50318515
Fax 02/50318501
[[alternative HTML version deleted]]
2010 Jul 13
2
RODBC and Excel 2010 xlsx
Hi List, just to know if the issue is only a problem of mine or if it is a
general issue due to the new MS Office pack. I'm using R 2.11.1 32 bits in a
Windows 7 x64 with the MS office 2010 x64 installed. I can import .xls files
normally (the same way I did with my Excel 2007 32 bits). But the function
odbcConnectExcel2007 isn't able to import .xlsx files now that I have the
new version of
2011 Nov 07
1
Problema with Excel files
Hi,
I have a Excel file with three spreadsheets: PlanA, PlanB
and PlanC.
I'm trying to read the three spreadsheets and then adding
them together.
But, when I try read the PlanA there is an error message:
rm(list=ls())
setwd('C:/Test/Dados/Teste')
require(RODBC)
Arquivo = odbcConnectExcel('T070206_1347.xls')
(Geral = sqlFetch(Arquivo, 'PlanA'))
(Lactacao =
2009 Mar 09
3
Creating an Excel file with multiple spreadsheets
DeaR all,
I'd like to know how to create an Excel file with multiple spreadsheets from
R. I searched the help files and found [1] but it is not what I want to do.
Let's say I have a data frame called DF as in the following code
# Some data
set.seed(123)
ID<-sample(5,100,replace=TRUE)
X<-rnorm(100)
Y<-rpois(100,10)
Z<-X*Y
DF<-data.frame(ID,X,Y,Z)
str(DF)
I'd like to