Built-in Way To Find All Permutations Of An Array?
Apr 15, 2010built-in way to find all permutations of an array?
View 2 Repliesbuilt-in way to find all permutations of an array?
View 2 RepliesI have a number of arrays (lets say two for the time being, but this needs to be scalable from 1-n). Each array represents a different "parameter" for the application I'm working on. I need to create a multidimensional array containing a set which represents each of the permutations of each of the "parameters". Effectively each row represents each permutation of the selected options for each "parameter" array.
For instance, say the first array of inputs is:
"Blue"
"White"
"Yellow"
And the second:
1
66
95
I need to create an array:
"Blue", 1
"Blue", 66
"Blue", 95
"White", 1
"White", 66
"White", 95
"Yellow", 1
"Yellow", 66
"Yellow", 95
The main work is in the "If Not (OutputTemp Is Nothing)" loop. Effectively I need to access the content in the first array with a "modulus" so that: (using the example above). I'm accessing the rows in the following method
OldArr,NewArr
11
12
13
21
22
23
31
32
33
worked it out.
Here is the code.
Public Class Permutation
Public TitlePrimary As String
Public TitleSecondary As String
Public Order As Integer = 0
Public Values() As Object
[Code] .....
I think what I'm trying to do is considered a permutation but I could be wrong. I've come across several examples of how to permutate a string as follows:
Permutations of {A B C}: {A B C}, {A C B}, {B A C}, {B C A}, {C A B}, {C B A}
What I'm needing are results similar to this (using the same input) with a repeat of each item to create a list of all possible combinations: {A A A}, {A A B}, {A A C}, {A B A}, {A B B}, {A B C}, {A C A}, {A C B}, {A C C}...and so on.
Below is some code that I found that almost gets me there with an exception of the repeated values:
'Generates all possible combinations from a series of words
Public Function PermutateString(ByVal input_string As List(Of String), Optional ByVal Base As String = "") As List(Of String)
Dim i As Long
[CODE]...
I have 36 numbers and I want to get all the possible 3 number combinations of these 36 numbers. This is what I have written. It's clunky and it gives repeats also. Any help?:
Dim first, second, third As String
Dim Triples() As String = Nothing
Dim count As Integer = Nothing
For i = 1 To 36
For j = 2 To 36
[Code]...
Is it possible to immediately use code that is built in a dynamically built assembly?I would like to create an instance of an ENUM built using.http:[url]......
View 4 Repliesi want to take a text file built like this;
[Code]...
and so on and i'm trying to load it into an array, without success. something to get me started in the right direction.
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?
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 !
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]...
I have a huge unsorted array of strings like
vector = {"2421024141", "325216182","2463112099","2416997168","11114721047","4116940195","1191138134","231244164123 ",..........}
[code].....
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.
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
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?
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?
View 6 RepliesI'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?
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?
View 3 Repliesi 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]....
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
I declared my Array:
Dim invoice_discountitems(100, 100) As String[code]...
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]...
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]
View 1 RepliesI need to find consecutive numbers in an array and return a string which tells the range and numbers that don't form a range.I found some of the already asked questions but none of them is in VB.Net:Add to array consecutive numbersIf the array of numbers looks like {11,12,67,68,69,70,92,97} then returned string should be of the form 11,12, 67 through 70, 92 and 97.
View 1 RepliesI am having trouble in finding duplicate numbers in an array.the first one is to create an array with duplicates and then display the number that has been duplicated and how many times it has been duplicated.
Here is my uncompleted code:
Dim arry(4) As Double
arry(0) = 4
arry(1) = 44
[code]....
Can I do this to find the lowest value in an array greater than zero?
Dim findLowest() As Integer = {right, left, backRight, backLeft}
Dim theMove As Integer = findLowest.Min > 0
Can't seem to find it on MSDN.
how do i find the Mode of an array of numbers.this is what i have so far, sacount1 is the max index
For j = 1 To SAcount1
If NFAI(j) = NFAI(j - 1) Then
x1 = x1 + 1[code].....
I've been assigned a homework assignment where I need to use LINQ to find certain numbers within an array. I've read through the book and some online tutorials, for some reason I just can't seem to understand it. I'm not asking anybody to do my homework for me... Just asking if anybody could explain it better, maybe in more detail?
View 2 RepliesHow can I find out the length of particular row of array?
Label1.Text = array.Length
This shows the length of whole array.
e.g. 30
0 1 2 3 4 5 6 7 8 9
0 1 2 3 4 5 6 7 8 9
0 1 2 3 4 5 6 7 8 9
I would like to get the length of 0 row.
0 1 2 3 4 5 6 7 8 9
I have an array in my application and I don't know how many values there will be in the array because it gets the data from a webpage. Filling the array with information from the webpage works except for the length, it always returns 999. This is my
dim Array() as string
Array = GBA(source, "<b>", "</b>")
Count = Ubound(Array)
How can I find out the length of my array?
I'm using vb10.
Public
Function RndNum(ByVal
NumLwr As
[code]...
I want to find which of the 64 elements has the highest number and which of the 64 elements has the lowest number?Is there a new command in vb10 to do this quick with little code?
I am working on a very basic draw poker program. I need to analyze the hands. So far I have been able to identify a a pair, straight, a flush , and a straight flush. I'm not sure how to find three of a kind, full house, etc I have a function that uses a hash table to find out if there are duplicates in my array. I can use it identfy a sequence of cards. (i.e. if it returns a 5, that would be five cards in sequence) I'm not sure how to/if at all to use this for a pair , three of kind etc.. Maybe a differant approach would be useful. I've tried various pseudo code idea on paper and just don't see it.
[Code]...