Date: Sun, 25 Mar 2012 17:54:11 +0400<br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
From: Aleksey Khudyakov <<a href="mailto:alexey.skladnoy@gmail.com">alexey.skladnoy@gmail.com</a>><br>
Subject: Re: [Haskell-cafe] Mathematics and Statistics libraries<br>
To: <a href="mailto:haskell-cafe@haskell.org">haskell-cafe@haskell.org</a><br>
Message-ID: <<a href="mailto:4F6F2383.6070404@gmail.com">4F6F2383.6070404@gmail.com</a>><br>
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On <a href="tel:25.03.2012%2014" value="+12503201214">25.03.2012 14</a>:52, Tom Doris wrote:<br>
> Hi Heinrich,<br>
<br>
And of course data visualization. Only library I know of is Chart[1] but<br>
I don't like API much.<br></blockquote><div><br>There is the plot[1] library which provides for updateable plots from GHCi REPL and has a gnuplot-like interface. I wrote it for this very reason, a mathematics/statistics development environment.<br>
<br>It uses Data.Vector.Storable, which provides for compatability with both statistics and hmatrix packages (as well as hstatistics).<br></div><blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<br>
I think talking about data frames is a bit pointless unless we specify<br>
what is data frame. Basically there are two representations of tabular<br>
data structure: array of tuples or tuple of arrays. If you want first go<br>
for Data.Vector.Vector YourData. If you want second you'll probably end<br>
up with some HList-like data structure to hold arrays.<br>
<br></blockquote><div>Matrices from hmatrix are easily converted to rows or columns of Data.Vector.Storable and can be sliced and otherwise manipulated.<br><br><br>
<a href="%20%20[1]%20http://hackage.haskell.org/package/plot"> [1] http://hackage.haskell.org/package/plot</a><br><br>Vivian<br>
<br></div></div>