Stata - r-class command - Guidance - stata

Is there anybody who could give me a first hint on how to program an r-class command in Stata? Also a helpful link containing instructions or guidance would be useful.

The original and in many ways best introduction is in the later chapters of the User's Guide. That's bundled with Stata as a .pdf. See also Kit Baum's text http://www.stata.com/bookstore/stata-programming-introduction/

Related

NGS Analysis: How can I extract the different variants in two VCF files

I am currently working on my thesis and I am trying to analyze the results of NGS sequencing Illumina. I am not really familiar with bioinformatics and in this part of my project, I am trying two compare two vcf files corresponding to the results of healthy tissue and tumor tissue. I want to compare these vcf files and remove their similarities. More specifically I want to remove the information of the healthy tissue from the tumor one. Have you any suggestions on which tool I should use or any way that I can do my analysis? If you can help me I would be more than thankful. Thank you in advance!
I understand your problem. First thing I would recommend is to use Unix software (I don't know which OS you're running) called VCFtools. It's pretty simple to use. But if You want to do all the processing with, for example python, you can use the pandas library for python which helps to process data in column format or PyVCF library, which is a parser for VCF files. I can help you more if you can provide some example data you're processing.

spseg- Reardon and O'Sullivan's spatial segregation package

Does anyone know if the spseg command was ever implemented in Stata? I was reading Reardon and O’Sullivan (2004) paper and came across a PowerPoint lecture where Maurizio Pisati describes the spseg command in Stata. I tried to implement it, but it doesn't seem to exist in Stata and there isn't any documentation on it. I know that R has a similarly named package, but was wondering if the package was ever implemented in Stata. I’d prefer to use the Stata package, if that’s available.
According to Maurizio Pisati, it was never implemented.

How to Show C++ Results in Excel

I am trying to create C++ code that allows User Input in selecting a variety of fields, then it will calculate many different angles and show the users the results, as well as a graph.
However, it has been suggested to us by our lecturer that it may be a good idea to write the code to these calculations etc in C++, then input the results into Excel.
Does anyone have any idea how to do this? Literally looking for a way for the user to fill in the required values on C++ and then to be AUTOMATICALLY taken to the excel file to show the results in the table and graph format.
If this is not possible, is there a way to display the results in the table and graph format through C++?
Thanks very much in advance
Excel provides COM interface which you can use from your C++ application.
This can be done in the way described in this article:
http://support.microsoft.com/kb/216686
This link might also be useful:
http://www.codeproject.com/Articles/10886/How-to-use-Managed-C-to-Automate-Excel
I think the second link would be better for you as its more of a step by step guide which should help you to workout the answer.
Use COM Automation to automate excel.
The best way to do this is to use the vole library by Matthew Wilson at
http://vole.sourceforge.net/
Take a look at the examples. I do not think there is an example for excel, but there is one for microsoft word at http://www.codeproject.com/KB/COM/VOLE_word.aspx
I have used vole in the past, and it makes it a whole lot easier

Output and Input in SML

I am trying to understand TextIO to write and read files line by line. Most resources online start without some introductory texts. I do not have any previous knowledge with file handling and no advanced knowledge with SML. I do not know how to deal with signatures if that is needed.
Any Link or detailed description would be of great help.
Thank You.
Mabye this will help you.....
http://www.cs.cornell.edu/courses/cs312/2006fa/recitations/rec09.html

How to search wikipedia and get input or info in C++?

I want my program to search wikipedia and get the info it searches for and put it into a large string and output into a file. How can I do that in C++? Any info please tell? need more anwsers please
Use wget with the query URL
wget --output-document=result.html http://en.wikipedia.org/wiki/Special:Search?search=jon+skeet&go=Go
This searches for jon skeet and stores the result in result.html
To use it from C++ you can e.g. use the system() call to execute wget in a seperate process.
libcURL is pretty popular. I don't know that the interface is especially object-oriented, but it's certainly usable from C++.
There are a number of client APIs for MediaWiki (the wiki engine that powers Wikipedia). Here's a listing. They provide the ability to create/delete/edit/search articles. Nothing in straight C++ but it still may be useful.
DotNetWikiBot was quite useful on one project that I had...