static void Main(string[] args)
{
//args = new[] {"unclean_data.txt", "code_mapping.txt", "8", "cs634_arif-gencosmanoglu_apriori_8.txt" }; // remove me when test is over
//args = new[] { "practice_data.txt", "8", "out.txt"}; // remove me when test is over
if (args.Length != 3 || args.Length != 4)
{
Console.WriteLine("You must enter either 3 or 4 different inputs.");
return;
}
List <Transaction> transactions = new List <Transaction>();
// get arguments
var support = int.Parse(args[args.Length - 2]);
var output = args[args.Length - 1];
if (args.Length == 4)
{
// clean transactions
transactions = CleanData.Unclean(args[0], args[1]);
}
else if (args.Length == 3)
{
transactions = CleanData.Clean(args[0]);
}
// run apriori
var candidates = new Candidates {
Level = 1
};
// add the header lines
var list = new List <string>
{
"Class Info: CS634-101 Data Mining",
"Author: Arif Gencosmanoglu",
$"File Name: {Path.GetFileName(output)}",
"Due: 11:59pm on Monday October 29",
"Purpose: Finding the frequently bought items based on transaction data"
};
//generate for candidates
candidates = candidates.GenerateFirstLevelCandidates(transactions)
.ScanCandidates(transactions)
.ReturnFrequentItemList(support);
candidates.Print();
list.AddRange(candidates.CandidateItems.Select(_ => $"{_.ItemSet} ({_.Count})").ToList());
// generate the rest candidates untill no candidate memebers exist
while (candidates.CandidateItems.Count != 0)
{
candidates = candidates.GenerateCandidates()
.RemoveDuplicates()
.ScanCandidates(transactions)
.ReturnFrequentItemList(support);
candidates.Print();
list.AddRange(candidates.CandidateItems.Select(_ => $"{_.ItemSet} ({_.Count})").ToList());
}
// write result in putput file
File.WriteAllLines(output, list);
Console.WriteLine("Press any key to end the application.");
Console.ReadKey();
}