Find Duplicates In A Array?

Mar 23, 2012

I have a huge unsorted array of strings like

vector = {"2421024141", "325216182","2463112099","2416997168","11114721047","4116940195","1191138134","231244164123 ",..........}

[code].....

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Find Duplicates Within An Array List Of Random Numbers?

Feb 22, 2012

I'm creating an application that creates a list of 20 ramdomly selected numbers within an array and displaying those numbers in a listbox. I then need to display the duplicate numbers in an adjacent listbox by clicking the find duplicates button. How would I be able to access those 20 numbers in order to find the duplicates?

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C# - Find Duplicates In ArrayList?

Jul 27, 2010

I have to check duplicate records in ArrayList. In ArrayList each item should have atleast 2 times before insert new Item. Per example

Example 1:

AL(0) = '1'
AL(1) = '1'
AL(2) = '2'

[Code]....

Method has to return = 'false', because '2' has 1 time in the list. So I dont
want insert '3' in ArrayList and return false.

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Find Duplicates In Two Arraylists?

Oct 28, 2011

I have searched high and low for a solution yet still no luck, I have two arraylists populate with FileInfo and I want to compare the two and write the duplicate (matching files) to a listbox.Here is how I have populated the arraylists but in terms of the comparison I have not found anything that works:

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim arraylist1 As ArrayList
Dim arraylist2 As ArrayList

[code]....

What can I do next to compare the two and write the duplicates to ListBox1.

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How To Find Duplicates In String

Mar 25, 2012

I am trying to find duplicates in a string. The code works more than I would. The purpose is to create a jagged array with values and positions like this one:

myString = "1123464263948465475965069068547363532627281901"
jagged= {{{1},{0,1,42,45}},{{2},{2,7,36,38,40}},{{3},{3,9,31,33,35}},{{4},{4,6,11,13,16,29}},.........}

Value Positions
1 0,1,42,45
2 2,7,36,38,40
3 3,9,31,33,35
4 4,6,11,13,16,29 ......... and so on with unique keys and multiple or not values.

My code do this, but looping all over the string there a moment when it repeats values and positions, because already found them earlier. How do I make to keep just the UNIQUES? How do I skip the loop when the value is already in?

My code below
Public Class Form1
Public myString As String = " "
Public jagged()() As Integer
Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
myString = "1123464263948465475965069068547363532627281901"
jagged = New Integer(myString.Length - 1)() {}
[Code] .....

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Find Duplicates In List(Of String) In Program?

Jun 27, 2012

I have a customers List(of String) on which I am trying to find the duplicate customers.[code]...

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Forms :: Find Duplicates In Arrays And Count Them

Dec 23, 2009

This is my problem: I have an array with dates in it and I want a list with the dates and how much that date is sequel to the amount of that dates in the array.

This is my code so far:
arrsVerschillendeDagen(iTellerke) is declared on moduleniveau
arriMaand(iTellerke) is declared on moduleniveau
arriJaar(iTellerke) is declared on moduleniveau

I have a subroutine too that redimension my arrays.
Private Sub FillArray()
For iCounter As Integer = 0 To arriDag.Length - 1
arrsVerschillendeDagen(iCounter) = arriDag(iCounter) & "/" & arriMaand(iCounter) & "/" & arriJaar(iCounter)
Next
'result: 14/10/2009, 20/12/2009, 20/12/2009, 14/12/2009, 14/12/2009, 14/12/2009
[Code] .....

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Compare The Two Data Table Columns And Find Duplicates?

Feb 15, 2012

i want to compare the two data table columns and find duplicates for example

dataTable1
autoid ponbr polinenbr quantity
1 0001 10 5
2 0002 12 6

[code]....

in the above two dataTable i would like to compare the ponbr and polinenbr column and find the duplicates and get the autoid..

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Remove Duplicates From An Array?

May 31, 2011

[Code]...

I build up the ItemList array with the above code. How do i remove any duplicates in this array?

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Array With No Duplicates - Count Field

Sep 29, 2010

I have an multi dimed array of stock sizes, material type and count. The array could have duplicate arrays. In the end I need an array that is condensed with no duplicate and the count field is how many there were in the array.
Example:
Original array
Material: STL TUBG Stock Size: 3" X 3" X 0.250" W/T X 254MM
Material: STL TUBG Stock Size: 3" X 3" X 0.250" W/T X 254MM
Material: STL TUBG Stock Size: 3" X 3" X 0.250" W/T X 254MM
Material: STL TUBG Stock Size: 3" X 3" X 0.250" W/T X 254MM
Material: STL TUBG Stock Size: 3" X 3" X 0.250" W/T X 102MM
Material: STL TUBG Stock Size: 3" X 3" X 0.250" W/T X 102MM
Material: HRS Stock Size: 1" X 4" X 175MM
Material: HRS Stock Size: 1" X 4" X 175MM
Material: HRS Stock Size: 1" X 4" X 175MM
Material: HRS Stock Size: 1" X 4" X 175MM
I need
Material: STL TUBG Stock Size: 3" X 3" X 0.250" W/T X 254MM Count: 4
Material: STL TUBG Stock Size: 3" X 3" X 0.250" W/T X 102MM Count: 2
Material: HRS Stock Size: 1" X 4" X 175MM count: 4

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Check Array For Duplicates Using A Do Until Loop?

May 9, 2010

How do I not return duplicate random numbers with Do Until loop?

Dim numbers(5) As Integer
Dim subscript As Integer
Dim searchSubscript As Integer
Dim randomNum As Integer
Dim randomGenerator As New Random
Dim isFound As Boolean

[Code]...

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Sort An Array And Remove Duplicates?

Sep 8, 2009

I have a semicolon delimited string (e.g. an EMail Address List returned from a database or a textbox). How do I separate the string into an array, sort, and remove duplicates? The code below works to separate the string and sort the results, but doesn't remove the duplicates. I could probably then loop through the array and copy to a new array to eliminate the duplicates, but there must be a better way to do this using the VB.Net Array, String, and Collections handling classes.

Dim s As
String =
"Test; Test8;Test1;Test2;Test3; Test8;Test4;Test5; Test6"

[code]....

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Flag Duplicates In Array / Data Grid?

Apr 21, 2010

I have a huge array, well Data Grid actually (unbound), but it can be populated into an array... 47 columns by 2000 rows. The data within is random, I need to check each row for duplicates...

essence is on the quickest method though as it will be called by the user. The data is populated by column, so I can not check for duplicates during population.

e.g.

DataFR1, DataBF2, DataJU3....... DataXN47
DataHY1, DataBF2, DataJU3....... DataXN47
DataFR1, DataBF2, DataJU3....... DataXN47 << This is a duplicate >>

I can perform the 'compare' but i'm struggling with the speed.. because row 2000 could be the same as row 1 I can only get my head around a solution that would be very slow

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VS 2010 Array Of Random Numbers Without Duplicates ?

Aug 4, 2011

I'm new to the forums and VB programming in general, so I only have a very basic understanding of VB commands, but I still have a good grasp on logic and the like. I'm doing this for a school assignment, and I am in a bit of a pickle.I am trying to generate an array of 6 random numbers from 1 to 30, making sure there are no duplicates.I think I'm pretty close to cracking it, but it still doesn't work.Here's what I have at the moment:[code]......

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Write A Function That Returns The Number Of Duplicates That Exist In An Array

May 18, 2009

Write a function that returns the number of duplicates that exist in an array.

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VS 2010 Array From VB6 - Can't Find Array(xxx,xxx,xxx)

Feb 1, 2011

Here is a code in my VB6 application.

Array(1,"P11","@P 100", "NEXT")

However, now I'm converting this program to VB.Net and I'm stuck at this point. Can't find Array(xxx,xxx,xxx) in VB.Net 2010. Is there any option or function for this?

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.net - Find Row Count In A 2D Array?

Jul 29, 2011

How to find the number of horizontal rows in a 2D array ?

I have :

Dim i(,) As Integer = {{2, 5, 6, 7}, {32, 5, 4, 2}}

Find the number of rows in i ?

For example :

// Here, array i has 2 sets of data i.e. 2 rows
// set1 = {2,5,6,7} and set2 = {32,5,4,2}
// So, I want the number of sets i.e 2 in this case !

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.NET Cant Find The Index Of An Array?

Apr 15, 2010

This is the code for my array (which is working)

Public numUsers As Integer
Public fNameUsers As String = ("......users.txt")
Public UserRecords As Usersclass() 'note... this line is in a module '

reader = New System.IO.StreamReader(fNameUsers)
numUsers = 0
'Split the array up at each delimiter of "," and add new objects '
Do While reader.Peek <> -1
ReDim Preserve UserRecords(numUsers)
oneline = reader.ReadLine

[Code]...

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Find Number In Array?

Jul 23, 2010

i have an array consist of ({9,2,10,5,7}) and i have a total = "17".

the question is, how do i find which sum of array that match the total ??

do you people know the algorithm or in vb.net language ??

the number in array not always the same and so the total is. that is just an example.

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Find Out If An Items Is Not In An Array?

Mar 19, 2011

Ok i just want to know if value x is not in my array .Heres what i have been trying .Im using VB.net and just need to know when x isnt in the array so i can take an action.

Dim L, Path(0) As Integer
Open = cleara(Open)
sealed = cleara(sealed)[code].....

Here is how this work so far

Add my location to open ,Create H,G,F for items in open list
Find lowest F

Find adjacent nodes

Loop through nodes

If node is not walkable then ignore

If in sealed ignore (this is where im stuck at)

If not in sealed and is walkable then if in open compare G scores else add to open

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Find String In An Array?

Jun 12, 2009

I'm working in VB.Net. I have a textbox in which the user enters a number of strings seperated by comma. I store this value in a string array like this

Dim Src() As String
Src = txtVals.Text.Split(",".ToCharArray)

I want to search a dynamic string in this array. How could I do it in the fastest way?

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Find String In Array

May 26, 2009

I'm working in VB.Net. I have a textbox in which the user enters a number of strings seperated by comma. I store this value in a string array like this Dim Src() As String Src = txtVals.Text.Split(",".ToCharArray) I want to search a dynamic string in this array. How could I do it in the fastest way?

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Find String In Array?

May 26, 2009

I'm working in VB.Net. I have a textbox in which the user enters a number of strings seperated by comma. I store this value in a string array like this

Code:
Dim Src() As String
Src = txtVals.Text.Split(",".ToCharArray)

I want to search a dynamic string in this array. How could I do it in the fastest way?

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How To Find All Peak Value Of Array

Oct 31, 2011

I have an array where it storing all the analyzed values. The ubound array is 2999 and if we plot a chart with y-axis as the values and x-axis as the number of array (0-2999), the chart will look like as similar to the chart shown in the link below. (sorry to say I'm not unable to upload my picture from my pc, no idea what is the problem).I'm able to search for the maximum value (~ -25dB) of my chart from my array with this simple routine:[code]But my problem is I do not know how to find my second peak value, as example, the value ~-63 dB as shown in the chart. How should i write the routine to get this value from the array?

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How To Find How Many Lines In An Array

May 16, 2012

i have a txt file:

118.97.75.226:8080,
218.14.227.197:3128
118.96.151.110:8080
219.83.100.205:8080

this in an array, how do i find how many lines are in this array (obviously there is 4 but i want it to automatically detect it because it may not always be four if i import a differnt txt file)

Dim lines() As String
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
lines = IO.File.ReadAllLines("fileName.txt")
Label1.Text = lines(0)

[code]....

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Built-in Way To Find All Permutations Of An Array?

Apr 15, 2010

built-in way to find all permutations of an array?

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C#: Find Index Of A Multidimensional Array?

Mar 16, 2011

if i have a multidimensional array:

dim test(,,) as string

how can i loop through the array to find if another variable is contained in the second dimension of the array

dim x as integer = test.indexof(OtherVariable)

obviously above won't work

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Find A Value In Two Dimensional Array On Program?

Feb 16, 2012

I declared my Array:

Dim invoice_discountitems(100, 100) As String[code]...

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Find All Indexes Of String In Array?

May 9, 2012

i'm having trouble getting indexes of found matches in array. I have array of 100,000+ entries with numbers, and some of them occur more than once in array. I'd like to get every index of found matching element in array.I'm struggling with:

Dim ID() As String 'then I ReDim Preserve this ID() to needed length, and fill it with values

[Code]...

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Find Average Of Array Not All Cells Used

Jun 6, 2011

i created an array of 100 cells, and the user inputs the value into them now i have to find the average of the array but not all of the cells are used how do i go to the last value, instead of the last cell? [code]

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