xlconnect

I have data saved in .xlsx file, and in the data the columns date and time separated. However, I type the code; data1<-readWorksheetFromFile("file.xlsx", sheet="Sheet1") to retrive data into R. As a consequence, I am getting the time column in the R environment, with nonsense date attached to it. So the time column in R looks like 1899-12-31 16:07:11 , what I want only the take the time as 16:07:11 in this case. How can that be done ? Martin Studer XLConnect uses POSIXct to represent date-time values in a data.frame . If you only want to extract the time component you may use strftime(your

I have an Excel workbook of which I want to edit/fill some particular cells using R, without changing any of the formatting. So far I've tried XLConnect package and it seems it could do what I'm looking for, I just didn't find a way to do it. My straightforward approach to the problem: wb <- loadWorkbook("file1.xls") data1 <- readWorksheet(wb, "Sheet1", header=TRUE) ## adding a value to a particular cell: data1[11,12] <- 3.2 ## rewriting old data: writeWorksheet(wb, data1, "Sheet1") saveWorkbook(wb, "new_file1.xls") However, this way the new workbook loses all of the previous formatting

A couple of months ago I found on the Internet information about an R package to connect R with Excel and the other way around (doing basically what xlsx and XLConnect do). However, the main difference with respect to the two above mentioned solutions was that the package wasn't designed to use the JVM (which keeps giving me some trouble). I've been spending quite some time trying to find the reference for that package, without success. Can you help me? Many thanks. You may want to check out openxlsx : openxlsx: Read, Write and Edit XLSX Files Simplifies the creation of .xlsx files by

I have a macro-enabled template in excel that I wish to populate programmatically from R. I have an R process that retrieves different set of data for every item I with to process, processes them, and then I want it to duplicate and populate the template for each data set, bypassing the need to fill the template out by hand for every set of data. I have been using the XLConnect R package, however it does not support .xlsm files. I thought about using RExcel, but I want to run the program from an R environment, not from within Excel (also I had many difficulties trying to install RExcel). This

I am trying and failing to get the following process to complete in R Version 3.1.2: library(RCurl) library(XLConnect) yr <- substr(Sys.Date(), 1, 4) mo <- as.character(as.numeric(substr(Sys.Date(), 6, 7)) - 1) temp <- tempfile() temp <- getForm("http://strikemap.clb.org.hk/strikes/api.v4/export", FromYear = "2011", FromMonth = "1", ToYear = yr, ToMonth = mo, `_lang` = "en") CLB <- readWorksheetFromFile(temp, sheet=1) unlink(temp) I have been able manually to export the requested data set and then read it into R from a local directory using the same readWorksheetFromFile syntax. My goal now is

I updated my Java version and deleted the older versions of Java. Now my XLConnect package will not load in R because XLConnectJars won't load. Here is the error message. Loading required package: XLConnectJars Error : .onLoad failed in loadNamespace() for 'rJava', details: call: fun(libname, pkgname) error: No CurrentVersion entry in Software/JavaSoft registry! Try re-installing Java and make sure R and Java have matching architectures. Error: package ‘XLConnectJars’ could not be loaded Is the only solution to reinstall an older version of Java? Try to define the path options(java.home="C: