I'm having a persistant problem finding and implementing any packages capable of reading and writing XLS files in an OSX version of R.
Anyone have any suggestions?
I've gone so far as to try using Perl to implement WriteXls.
Thanks
I have had success with the Java based xlsx package. Available on CRAN. It does .xls as well as .xlsx.
read.xls in package gdata has worked for me in the past. You can get some further tips at the wiki page.
Another package to try is XLConnect.
Related
Does anyone knows a good Python library to parse MSDOS files and obtain metadata and start()'s bytecodes? Like an alternative version of pefile library but for MSDOS? I can't seems to find any via Google.
If there isn't, is there a good source to refer to on MSDOS's file format? This way, I can create my own parser instead. I know there are tools like IDA Pro and Reko decompiler but I need a MSDOS file parser to automate some stuff. Thank you in advanced!
Reko decompiler maintainer here. For what it's worth, you can use Reko's MS-DOS source code and translate it to Python. It's not a lot of code and MS-DOS executables aren't that complex to parse -- it's quite a simple format. The relevant files are:
https://github.com/uxmal/reko/blob/master/src/ImageLoaders/MzExe/ExeImageLoader.cs
https://github.com/uxmal/reko/blob/master/src/ImageLoaders/MzExe/MsdosImageLoader.cs
You could also try executing the Reko code directly from Python. The Reko binaries are available as a nuget package: https://www.nuget.org/packages/Reko.Decompiler.Runtime
Use the class Reko.ImageLoaders.MzExe.ExeImageLoader in the Reko.ImageLoaders.MzExe class. Integration could be done with http://pythonnet.github.io/
I need to read an excel file into Julia. I tried the package "ExcelReaders". However, the package requires additionally the Python or the xlrd package. Although it uses the conda.jl package to install these dependencies automatically, I keep on running into different installation problems. Is there a simple way to read excel into Julia? Has anyone tried the Taro.jl package?
There is only one pure-Julia v1.0-compatible Excel reader available:
XLSX.jl
It has no dependencies on Python or Java. Install it from the package manager by typing ]add XLSX in the console, then load it with using XLSX. Here is the tutorial document.
The Taro.jl package works well to read excel into Julia. You can install the package with Pkg.add(Taro). Once the package is installed, you can load it with using Taro; Taro.init(). You can use Taro.readxl() to read excel files. The following post provides a somewhat nice tutorial on how to read excel files in Julia using Taro.jl:
https://economictheoryblog.com/2018/01/03/how-to-read-an-excel-file-in-julia-language-an-example/
Taro works pretty well (even if I say so myself). You need java installed on the machine, but after that, Pkg.add(Taro) will install all the dependencies for you. And, I think you'll have better luck with Taro with more complex excel files.
If you are fine with saving in the ods format, you could also use the OdsIO.jl package.
It uses a python module (ezodf) as well, but it should install it automatically in both Windows and Linux when you install OdsIO.jl.
If you can save as a .csv then CSV.jl works well.
The ExcelReaders package is also available
https://github.com/davidanthoff/ExcelReaders.jl
I want to use D3DDDIFormat enumeration in my code. So I included "D3dukmdt.h" as given in the link "D3DDDIFORMAT
But when I do # include "D3dukmdt.h" in my C++ file, I see that the header file D3dukmdt.h is not recognized at all.
Can anyone kindly help me in this. Should I install anything in order to include this header file.
Thanks in advance.
It looks like you need the Windows Driver Kit (WDK) to get access to such things. It seems unlikely to me that you are trying to write a driver and don't appreciate you need the driver kit so you may be better off explaining what you are trying to do to get a workable alternative explanation
I want install TurboPower Abbrevia 3.05 from http://sourceforge.net/projects/tpabbrevia/ but its not working. :(
docu says:
_4. Open & compile the runtime package specific to the IDE being
used (e.g. B305vr2007.dpk for Delphi2007)
Start C++Builder2009 -> "Open Project..", select "B305vr2009.dpk" and click "open", but nothing happen. What is my mistake?
It's nice to see that someone is finally working on Abbrevia again, but looking at the Abbrevia web site I see that it still doesn't support modern versions of C++Builder. A few years ago I need to create Zips in an application and I found out that Abbrevia wouldn't work for me anymore. So, I compiled and linked in the Zip library from Info-ZIP, which worked very well. I didn't have much trouble adapting it to C++Builder as I recall, and it's still working fine today.
Info-ZIP's library only works with Zip files (no 7zip, etc.) but that's all we need here.
If you don't have RAD Studio, and only have C++Builder, you'll have to build it via the command line:
dcc32 -JL B305vr2009.dpk
You can then import the .bpl file generated from the Component->Import Component menu.
Abbrevia 3.05 didn't have C++Builder packages. The current release (5.0) supports C++Builder 2009-XE2 and has native .cbproj packages for it.
I am using the POSIX call nftw() for traversing a directory structure. The directory structure is flat - only 4 files and no subdirectories.
However when I call nftw() a lot of times on this flat directory then I get an error message after a while:
"too many open file handles".
It turned out that this happens when the flag FTW_CHDIR is used.
Would you agree that it is a bug in the Linux implementation of nftw() ?
UPDATE
A fix is now available in the glibc repositories.
here are some links to the source code I have used for testing:
main.cpp: http://sourceware.org/bugzilla/attachment.cgi?id=4586&action=view
Makefile: http://sourceware.org/bugzilla/attachment.cgi?id=4587&action=view
UPDATE
MacOS-X is also hit by the bug
Solaris9, Solaris10 and AIX 5.3 do not have the bug
For me it looks like there is really something wrong with the nftw implementation on linux.
I have filed a bug report, see here
UPDATE: A fix is available in the glibc repositories now.
It has the same behaviour on Mac OS 10.6.2. So probably somehow part of the specification, though I don't see how exactly.
Regarding Mac OS: bugreport submitted to Apple as radar #7640283. (No hyperlink possible, unfortunately.)