KrisKusano

KrisKusano

function tableout = quote_delim_table(tablein, delimiter, varargin)
%% wrap all strings in table that contain a delimiter with a quote character
% SYNTAX
%   tableout = quote_delim_table(tablein, delimiter)
%   tableout = quote_delim_table(tablein, delimiter, quotechar)
%
% DESCRIPTION
%   tableout = quote_delim_table(tablein, delimiter) all character columns in
%   tablein, and wraps strings containing delimiter with a double quote ('"')
%

KrisKusano

function auc = AUC(pred, act)
%% compute the AUC for Kaggle competitions
% auc = AUC(pred, act) returns the AUC value on [0, 1]. pred is the predicted 
% class membership, {0, 1}, and act is the actual class membership, also {0, 1}
%
% Sources:
%   http://link.springer.com/article/10.1023%2FA%3A1010920819831
%   http://www.kaggle.com/c/SemiSupervisedFeatureLearning/forums/t/919/auc-implementation/6130
%
% Kristofer D. Kusano - 6/24/14

KrisKusano

function table = tabulate_wgt(x, frequency)
%TABULATE Frequency table.
%   TABLE = TABULATE(X, FREQUENCY) takes a vector X and returns a matrix, TABLE.
%   The first column of TABLE contains the unique values of X.  The
%   second is the number of instances of each value.  The last column
%   contains the percentage of each value.  If the elements of X are
%   non-negative integers, then the output includes 0 counts for any
%   integers that are between 1 and max(X) but do not appear in X. The counts
%   (second column) and percentage (third column) use frequency.
%

KrisKusano

function p = chutes_and_ladders()
%% Chutes and ladder game
% Plays chutes and ladders game on a 10x10 board. All players start off the
% board (position 0). Players take turns rolling a 6-sided dice and moving up
% the board. There are 10 chutes and 9 ladders that can skip players ahead.
% Rolling a 6 allows the player to roll again. Rolling 3 consecutive 6's,
% however, sends the player back to space 1. The player is stuck at space 1
% until they roll a 6 again.
%
% chutes_and_ladders.m