### Merging multiple files columnwise

Here's a little parser script, to merge multiple files. Each file has a header and a time course. I need all time courses in a single file, next to each other.

basedir = "./MassSpectrum/"

allData = [] # ms data from all files

filelist = Dir.new(basedir).entries
filelist.each {|f|
if f !~ /\.txt/ # f is not a data file
next
end

data = [] # ms data from this files
massToCharge = 50
readData = false # set to true once we are reading in ms data
File.open( basedir+f).each { |line|
case line
when /^SPECTRUM/
next
when /raw/
data.push line.chop.rstrip
puts ":#{line.chop.rstrip}:"
next
when /^Mass/
puts "starting"
next
end

if readData # we are reading ms data, should go from 50 to 650
arr = line.split
while arr.first.to_i != massToCharge # a mass to charge ratio was skipped
data.push 0
massToCharge = massToCharge + 1
end
data.push arr.last
massToCharge = massToCharge + 1
end
}
allData.push data
}
open("results.xls","w") { |out|
for i in 0..allData.first.size do
allData.each{ |l|
out << l[i]
out << "\t"
}
out << "\n"
end
}



### Latex: Centering table larger than textwidth

Usually, you can center tables with \center. But when the table is longer than the \textwidth, it will be align with the left side margin. You can temporarily adjust the textwidth.

% allows for temporary adjustment of side margins
\usepackage{chngpage}

\begin{table}
\begin{center}
\begin{tabular}{|c|}
\hline
And here comes a very long line. And here comes a very long line. And here comes a very long line.  \\
\hline
\end{tabular}

\caption{This Table is longer than the text width. And its caption is really long, too. This Table is longer than the text width. And its caption is really long, too. This Table is longer than the text width. And its caption is really long, too. This Table is longer than the text width. }
\label{myTable}
\end{center}
You can easily submit data in an html form via jQuery's $.post. But you need to do a little more to upload a file. I suggest the jQuery Form Plugin. Here is the HTML form: <html> <head> <title>Title</title> </head> <body> <form action="/test.cgi" enctype="multipart/form-data" method="post"> <input name="myFile" type="file" /> <div id="results"> </div> </form> </body> </html> This is the Javascript file myFrom.js:$(document).ready(function() { $('form').ajaxForm( { beforeSubmit: function() {$('#results').html('Submitting...'); }, success: function(data) { var $out =$('#results'); $out.html('Your results:');$out.append('<div><pre>'+ data +'</pre></div>'); } …