Displaying 20 results from an estimated 5000 matches similar to: "RODBC vs gdata"
2013 Apr 02
1
gdata selectively not working
I can use gdata to successfully read in the example Excel file, but not any
other excel files. Why might this be the case? It seems that the problem
has something to do with opening the database but no indication as to what
the problem is. So i'm at a loss of how to fix it.
> library(gdata)
gdata: read.xls support for 'XLS' (Excel 97-2004) files ENABLED.
gdata: read.xls support
2012 Aug 14
3
self-starter functions for y = a + b * c^x
Hi
there are some predefined self-start functions, like SSmicmen, SSbiexp,
SSasymp, SSasympOff, SSasympOrig, SSgompertz, SSflp, SSlogis, SSweibull,
Quadratic, Qubic, SSexp (nlrwr)
Btw, do you know graphic examples for this functions?
The SSexpDecay (exponential decay) for y = (y0 - plateau)*exp(-k*x) +
plateau from
2009 Jul 08
1
Import xlsx file in Ubuntu 9.04
Hi list,
By the entire last 2 weeks I was looking for a way to directly import xlsx
files to R in a Linux OS (Ubuntu 9.04). I already read the R Import/Export
guide, and I know how to use gdata to import xls files and read.table to
import .csv. My problem is that all data that I receive is in the xlsx
format, and I have to convert all the files to xls.
Well, when I was using Windows Vista OS,
2012 Sep 17
3
eval(parse(...)) only once in a function
Hi
I would like to have something like
str <- "df$JT == 12"
fun <- function(df) {
b <- eval(parse(str))
return(b)
}
but for performance "eval(parse(a))" should not be evaluated at each
function call, but should work as
fun <- function(df) {
b <- df$JT == 12
return(b)
}
Do you have an idea how I can implement this?
Thx
Christof
2012 Oct 02
3
lattice xyplot, get current level
Hi
xyplot(y ~ x | subject) plots a separate graph of y against x for each
level of subject. But I would like to have an own function for each
level. Something like
xyplot(y ~ x | subject,
panel = function(x,y) {
panel.xyplot(x,y)
panel.curve(x,y) {
# something that dependents on the current subject
...
}
})
How I get the current
2012 Jul 16
1
RODBC connection to locked Excel2010 files
Hi,
I am trying to connect to an Excel2010 file while another user is entering
data. (Obviously it would be better to set up a SQL database, but this is
not an option at this point.). Typically we are not working on the same
sheets. However, if possible I like to read the most current excel file
into R.
RODBC works great as long as the other user has not open the file. I tried:
channel <-
2012 Jan 20
3
break an axis.POSIXct
Hi
I like to use "axis.POSIXct" to plot days from 2006 till 2008. But I
only have datas for the summer months. Is it possible to get two axis
breaks, to have not so long distances without points?
thx
Christof
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
2012 Oct 09
8
gdata
Estimados.
Encuentro el siguiente error pero no logro darme cuenta de cómo se resuelve
o dónde está el inconveniente (el dir está ok):
> library(gdata)> redes <- read.xls("Base_EncuentrosRedes.xls", sheet = "CAPS")Error en findPerl(verbose = verbose) :
perl executable not found. Use perl= argument to specify the correct
path.Error en file.exists(tfn) : argumento
2012 May 29
1
RODBC, Excel, and data truncation when writing
Hi,
I am hoping to use the RODBC package to write a dataframe to an Excel .xlsx
file. The dataframe contains at least one field with character elements
that exceed 255 bytes, which appears to be the cell width limit in Excel.
Below is example code and the warning message received:
library(RODBC)
d <-
2014 Feb 24
3
Error gdata and gplots packages
Hi, I just installed Ubuntu 12.04.4. I installed R by following
instructions from CRAN after modification into my /etc/apt/sources.list file
sudo apt-get update
sudo apt-get install r-base
sudo apt-get install r-base-dev
When I try to load library(gdata) ou library(gplots), I have error
message :
library(gdata)
gdata: read.xls support for 'XLS' (Excel 97-2004) files
2011 Nov 26
2
simplify source code
Hi
I would like to shorten
mod1 <- nls(ColName2 ~ ColName1, data = table, ...)
mod2 <- nls(ColName3 ~ ColName1, data = table, ...)
mod3 <- nls(ColName4 ~ ColName1, data = table, ...)
...
is there something like
cols = c(ColName2,ColName3,ColName4,...)
for i in ...
mod[i-1] <- nls(ColName[i] ~ ColName1, data = table, ...)
I am looking forward to help
Christof
2010 Nov 28
3
Where is gdata?
Hi folks,
Win 7 64 bit
R 32 bit
> install.packages("gregmisc")
Installing package(s) into ‘C:\Users\satimiswin764\Documents/R/win-library/2.12’
(as ‘lib’ is unspecified)
--- Please select a CRAN mirror for use in this session ---
also installing the dependency ‘gmodels’
trying URL
'http://cran.ms.unimelb.edu.au/bin/windows/contrib/2.12/gmodels_2.15.0.zip'
Content type
2011 Dec 04
3
RODBC connect to Excel (64-bit Windows 7)
Hi to all.
I have a problem to connect to an Excel database using RODBC.
Namely, I am using 64-bit R 2.14.0, under Windows 7 and I tried following:
library(RODBC)
> channel <- odbcConnectExcel("results.xlsx")
Error in odbcConnectExcel("results.xlsx") :
odbcConnectExcel is only usable with 32-bit Windows # ok this is
clear why it doesn't work
> channel
2013 Jul 16
2
Importing data by odbcConnectExcel in 64 bit
I have probably an old question.
I have R.3.0.1 installed in 64 bit windows 7. The odbcConnectExcel in RODBC
library does not work. Tried odbcConnectExcel2007 still does not work.
Any ideas.
Thanks
Melissa<-sqlFetch(odbcConnectExcel2007("F:\\Cotton2012\\validation.xlsx"),sqtable
= "Sheet3",
+ na.strings = "NA", as.is = TRUE)
Error in
2013 May 01
1
Trouble with methods() after loading gdata package.
Greetings to r-help land.
I've run into some program crashes and I've traced them back to methods()
behavior
after the package gdata is loaded. I provide now a minimal re-producible
example. This seems bugish to me. How about you?
dat <- data.frame(x = rnorm(100), y = rnorm(100))
lm1 <- lm(y ~ x, data = dat)
methods(class = "lm")
## OK so far
library(gdata)
2012 Oct 26
2
connect points in charts
Hi
is there a automatic way that long distances between points are not
connected. I have something like
plot(x,y,type="o",...)
atx <- seq(as.Date("2009-04-01"),as.Date("2011-04-01"),"month")
axis.Date(1, at=atx,labels=format(atx, "%b\n%Y"), padj=0.5 )
but I do not want lines between points whose distance is greater than
two weeks.
thx
2012 Jul 02
2
save conditions in a list
Hi
how would you save conditions like
a = "day > 100"; b = "val < 50"; c = "year == 2012"
in a list? I like to have variables like "day", "val", "year" and a list
of conditions list(a,b,c). Then I want to check if a & b & c is true or
if a | b | c is true or similar things.
Greetings
Christof
2015 Mar 26
2
Conectividad con Excel
Hola amigos, buenos días
Esto sigue avanzando. Estoy ahora tratando de establecer la conectividad de
R con Excel y he seguido dos viídeos en YouTube de una profesora llamada
Bebilda que se explica muy bien.
Con ambos tengo el mismo problema así que planteo uno de ellos, éste es:
https://youtu.be/_pSJQO_9I4k?list=PL7DA3FDA21A1A6310
Pero os lo explico brevemente:
Cargo el paquete RODBC >
2009 May 28
4
Read & name multiple excel sheets using RODBC
I'd like to be able to read multiple sheets from an excel workbook and use
the sheet name to name the resulting dataframe using RODBC. at the moment
i've figured out how to do it the long way (see below) but feel sure that
there is a speedier & possibly automatic way to do it in R. i've tried to
run a loop using sqlTables but it seemed to break the connection. unless
i've