Rank: 2862 based on 23 downloads (last 30 days) and 3 files submitted
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Daniel

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Files Posted by Daniel View all
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30 Apr 2013 pushNaNs Pushes NaNs to the bottom of each column of X. Author: Daniel nan, order, sort, remove, column 7 3
18 Jan 2013 GetGoogleSpreadsheet Download a google spreadsheet as csv and import into a Matlab cell array. Author: Daniel google, spreadsheet, import, csv 8 0
14 Jan 2012 Tiedrank_(X,dim) Like MATLAB's tiedrank function, but works along dimension dim of ND-array. Author: Daniel rank, correlation, tied, tiedrank, sort 8 1
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5.0 | 1 rating
Comments and Ratings by Daniel View all
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01 May 2013 pushNaNs Pushes NaNs to the bottom of each column of X. Author: Daniel

Vanessa,
Sorry to disappoint, but I think you're probably more or less right. The situation in which I thought the function would be useful turned out to be entirely avoidable, after much TLC to the script in question (wading through someone else's lazy coding).
Actually I wrote the function after I'd already realised it wasn't needed, I was just curious to see how it could be done neatly and reckoned there may occasionally be a need for it.

31 Jan 2012 Rankings Calculate Rankings with five different methodologies Author: Francesco Pozzi

You might like my tiedrank_(X,dim) function: http://www.mathworks.com/matlabcentral/fileexchange/34560-tiedrankxdim
The code is fully vectorised and runs pretty fast.
31 Jan 2012 colAUC Calculates Area under ROC curve (AUC) for a vector or for each column of a matrix. Author: Jaroslaw Tuszynski

For ND-array tiedranks you might like http://www.mathworks.com/matlabcentral/fileexchange/34560-tiedrankxdim
31 Jan 2012 Spearman Rank Correlation It calculates the Spearman rank correlation coefficient. Author: Alexandros Leontitsis

If you want to compute tied ranks along a specific dimension of an ND-array see http://www.mathworks.com/matlabcentral/fileexchange/34560-tiedrankxdim.
09 Dec 2011 Determine and count unique values of an array Very fast function to determine and count unique values of numeric, logical, char, cell arrays. Author: Anthony Kendall

I haven't actually tried this yet, but how about using the 'sparse' parameter in accumarray? And why not add a 'dim' parameter to your function...I think it's still possible to do this with accumarray.
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02 May 2013 pushNaNs Pushes NaNs to the bottom of each column of X. Author: Daniel Vanessa

thanks :) I'm definitely not disappointed... just curious! I agree that sometimes it is fulfilling to code up something spontaneously without having a solid application for it, but knowing that it might be useful in the future.

01 May 2013 pushNaNs Pushes NaNs to the bottom of each column of X. Author: Daniel Daniel

Vanessa,
Sorry to disappoint, but I think you're probably more or less right. The situation in which I thought the function would be useful turned out to be entirely avoidable, after much TLC to the script in question (wading through someone else's lazy coding).
Actually I wrote the function after I'd already realised it wasn't needed, I was just curious to see how it could be done neatly and reckoned there may occasionally be a need for it.

01 May 2013 pushNaNs Pushes NaNs to the bottom of each column of X. Author: Daniel Vanessa

I'm curious what this script would be used for? it's usually pretty easy to index the NaNs and then manipulate them that way, and given that indices usually have meaning, I'm wondering why I'd want to push the NaNs to the bottom and corrupt the ordering. Thanks!
06 Jun 2012 Tiedrank_(X,dim) Like MATLAB's tiedrank function, but works along dimension dim of ND-array. Author: Daniel Pozzi, Francesco

Very useful indeed! Thank you for that.
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sort, column, correlation, csv, google
Files Tagged by Daniel View all
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Updated   File Tags Downloads
(last 30 days) 		Comments Rating
30 Apr 2013 pushNaNs Pushes NaNs to the bottom of each column of X. Author: Daniel nan, order, sort, remove, column 7 3
18 Jan 2013 GetGoogleSpreadsheet Download a google spreadsheet as csv and import into a Matlab cell array. Author: Daniel google, spreadsheet, import, csv 8 0
14 Jan 2012 Tiedrank_(X,dim) Like MATLAB's tiedrank function, but works along dimension dim of ND-array. Author: Daniel rank, correlation, tied, tiedrank, sort 8 1
  • 5.0
5.0 | 1 rating

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