Sorting An Array - Loop To Find The Mean And The Median
Nov 21, 2009
I got this project for school and im stuck! Ill just make this simple here is a link to what im trying to accomplish.[url] I have quite a bit a code already , and i know i need a do for loop to find the mean and the median , but how I write these loops a little confusing to me , also what sub routines i put them in because there are quite a few and how to write these numbers from the array to the labels.
Public Class frmStatistics
Private Sub btnEnterData_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnEnterData.Click
[CODE]...
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Oct 14, 2010
There are few steps to find out the half slopes of the graph.
Step 1: Rank the data The independent variable is required to rank it from the lowest to the highest.
Step 2: Divide the data Divide the sample size into 3 roughly equal parts, which is the lowest, middle and the highest parts. If n/3 has remainder of 1, +1 into the middle part. If n/3 has remainder of 2, +1 into the lower part.
Step 3: Find the median The size of each part = n, find the ((n+1)/2)^th value for both dependent and independent variables. If the ((n+1)/2)^th is not an integer, sum up the 〖n/2〗^th value and ((n+2)/2)^th value and divide the total by 2 to make it as median. The median, m1 for independent variable in lower part indicate as XL , middle part median, m2 as XM and the highest part median m3 as XH. For the dependent variable the median is indicate as YL, middle part as YM and the highest part as YH . Figure 3.2 Example of median m1, m2 and m3
Step 4: Find the half slope Find the half slope for the lower half, b_L=(Y_M-Y_L)/(X_M-X_L ) and for the upper half, b_H=(Y_H-Y_M)/(X_H-X_M ) .
Step 5: Find the half slope ratio, b_0=b_L/b_H . If the ratio is negative, the dependent variable need to add with a constant, c in order to make the slope same direction.
Step 6: Identify transformation. Depend on the graph pattern pick one type of transformation which is nearest to the original of the variable.
Step 7: New half slope Find out the new half slope ratio, b1 by repeat step 4 and 5 with the transformed variable.
Step 8: Repeats steps Repeat step 6 and 7 with choose the transformation which is nearest to previous transformation and find the new half slope ratio, b2, b3,�, bn. Repeating this step until |1-b_i |≤|1-b_j |, for i<j, i and j = 1,2,3,
Step 9: Result bi is chosen. The data transformation used in bi is the most closest to be normality.
How to make it into visual basic and let it run by the program?
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Jun 19, 2009
I'm trying to sort an array based on a structure but whenever I do this, it basically erases all the data in the entire array.I have verified that the array is populated correctly, it is when using array.sort that everything returns blank.
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Feb 23, 2012
Although I have no errors in my code; however, I am not able to find the time it required to do the shell sortwhat am I missing in these codes?
[code]....
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Mar 12, 2011
I am trouble in sorting 2 dimensions array in vb.net. One row has 5 columns. Original array have 3000 rows.How can I get the effective sorting with pdtId. I tried to find googling, cannot get the right answer to me.
(0, 0) = pdtId "string"
(0, 1) = brand name
(0, 2) = category Id
(0, 3) = url
(0, 4) = date
[Code]...
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Jun 3, 2011
I'm trying to bubble sort an array then display it in a list box. When I click the button the program crashes.
Here is my code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If Not TextBox1.Text = "" Then
ListBox1.Items.Add(TextBox1.Text)
[code]....
And the compiler gives me this error: A first chance exception of type 'System.IndexOutOfRangeException' occurred in WindowsApplication1.exe
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Oct 22, 2010
I have a 2 column database....looks a little something like this:
Column A Column B
972CL 86.20716105
972CL 58.71034089
972CL 64.15368376[code].....
In column A there are 5 different variables (i have shown 3)....My goal code a macro to sort these by column A, calculate the average of the corresponding values in column B and ultimately end up with 5 variables that are the names of column A. e.g
972CL = average of all the 9721CL variables
972V = average of all the 972V variables
A caveat is that i will not know the names of the variables...i'm not sure if this code below is the right way:
For Row2 = 1 To 100
If Worksheets("Sheet2").Cells(Row2, Col2).Value = Worksheets("Sheet2").Cells(Row2 + 1, Col2 + 1).Value Then
testno = Worksheets("Sheet2").Cells(Row2, Col2).Value[code].....
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Apr 15, 2012
Is there at all a way to sort (numerically) a multidimensional array?
I have an array that is as follows `dim points(23,1) as String`
The first dimension of the array has the players names in, the second dimension of it has their cumulative points, so I want to sort the array by points and maintaing the correlation of players name to points
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Apr 9, 2010
I am writing an auto insurance application.I need to sort a three dimensional array in descending order based on an integer value in third field in the array.The CalcPremium function returns an integer value.
Dim CarDriverArray(3, 3)
CarDriverArray(0, 0) = "D1"
CarDriverArray(0, 1) = "C1"
[code].....
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Dec 2, 2008
I need to be able to sort in ascending and descending order the information in the (9,5) array, but sort it by the 0-5 dimension.
[Code]...
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Jun 23, 2011
sorting list of files in a folder. Below is a snipet of code from a program. The logic is dependant on the files coming in in alphapetical order. I did post about this earlier but I got pulled away and did not get a chance to follow the thread all the way through. The code is complete and it works. However I know it is not guarenteed to pull in alphabetical order so as my final step I wanted to sort the list of files. I thoughr using the array.sort command might work but I am not sure how to use it.
sLine = SetupNames(0)
Dim di As
New IO.DirectoryInfo(sLine)
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Jan 13, 2011
Is there a way to sort an array in VB that would put J10 and J11 after J9?
J1 (PN= 605848)
J10 (PN= 605987)
J11 (PN= 605987)
[code].....
This is what I get after I run myArray.sort()
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Nov 1, 2010
I want to sort a decimal array (currency with the places). I'm sure that I could find a bubble sort and modify it to suit my needs but it would seem that there would be a clean solution out there so I don't have to reinvient to wheel.
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Mar 31, 2012
Each array string represents a text file in a folder. I want the array to be sorted based on what the text file contains. How would I do that?
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Jul 7, 2009
i have a array like below. Dim sTemp() as string={"CCC1", "CCCs10", "CCCx11", "CsCC2", "CffffCC3"} I have to sort this array depends on the prefix(nymber)
sTemp() ={"CCC1", "CsCC2", "CffffCC3", "CCCs10", "CCCx11"}
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Dec 30, 2009
I want program to do Graphical Representation of array Sorting in vb.net with bars/shapes.
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Dec 29, 2009
Does anyone know of a program that visualizes array Sorting in vb.net (Bubble sort,selection sort etc)?
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Feb 12, 2010
Lets say I have the following String Array:
Code:
dim strArr(3) as String
strArr(0) = "15 Joseph"
strArr(1) = "24 Nick"
strArr(2) = "3 Mike"
[Code]...
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Mar 29, 2009
I have create a structure type array. sort the array so i can display the sorted array in a listbox. I want to be able to either sort by last name or the student with the highest score. Here's what I have so far:
Structure student
Dim firstName As String
Dim lastName As String
[Code]....
I heard about the IComparer thing but I didn't know how to implement it into my project.
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May 27, 2012
I have the following code that sorts a number of names in alphabetical order(A to Z) Q,
1-How do I change it and make it from Z to A??
2-How do I cut back on the number of loops by placing -1 or whatever, because when I do that I tend to get a messy order
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim student(10)
[Code].....
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Jun 3, 2010
I made an Array of Structure as given below. Now I want to sort them using different parameters.
"Array.Sort(ArratName)" or "Array.Reverse(ArrayName)" didn't work as I expected.
Structure
CheckRecord
Dim
CheckNumber As
Integer
[Code] .....
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Aug 12, 2011
I've just converted my VB.NET application from .NET 1.1 to 3.5, and I'm getting the warning message
Access of shared member, constant member, enum member or nested type through an instance; qualifying expression will not be evaluated.in
[Code]...
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Nov 16, 2010
I am trying to sort an array of ListViewItems, here is my code for setting is up:
vb.net
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim Apps(), Owners() As String
Apps = {"App2", "App1", "App4", "App3", "App5"}
Owners = {"AOwner2", "BOwner1", "COwner4", "DOwner3", "Owner5"}
Dim ListViewItemArray(Apps.Count - 1) As ListViewItem
[Code] .....
I know I can have the ListView be sorted but I want the item "All" to stay at the top. I have tried sorting the array with:
vb.net
Array.Sort(ListViewItemArray)
But I get this error: "Failed to compare two elements in the array.".
I also tried:
vb.net
ListViewItemArray.Sort()
But it says there is invalid number of arguments. Is it possible to sort this array or is there an easier way to accomplish what I am trying to do?
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Dec 14, 2011
I am trying to sort my array in ascending&Descending order, BUT im having trouble because the code to enter numbers and the code to sort the array was given to me by my professor but i changed the code to enter numbers into the array, so i think that's what messing my code to sort arrays up because the codes aren't matching up.. Dim J As Integer = 0 Dim MyArray As New List(Of Integer)
[Code]...
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Oct 5, 2010
I am trying to sort an array of processes by the process name. I fill the array by doing the following:
Dim proc() As Process = Process.GetProcesses
Then I tried doing
Array.Sort(proc)
, but that gives me an error.
I see there are a ton of overloads for the sort method, but I dont know which one will work, if any.
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Jul 25, 2009
In the past, I have learned by reading three or four other people's coding and once I gained understanding of how it worked, I could easily write my coding. I've got I will say this is a school project, so I don't expect anyone to just throw coding at me. I'd like to actually learn this stuff! Also, I HAVE read my book (over and over) and also requested help from the instructor, but as I'd like to meet the deadline on this project, I'm having problems waiting on his availability or lack thereof.
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Jun 23, 2010
I'm killing myself and dehydrating trying to get this array to sort.I have an array containing directories generated by;Dim Folders() As String = Directory.GetDirectories(RootPath)
I need them to be sorted so they appear like in windows explorer in win7 / vista. -- numerically and alphabetically by folder names.The folder names contain both letters and numbers, sometimes letters only or numbers only.
[Code]...
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Dec 16, 2010
I have the array dimensioned as public to the form. I populate the array on Form1_Load.When I click the button btnReversingAnArray the first time all are sorted in reverse except for Wendy and it is the last item shown. ie..(The book I am even shows an image of the list Box and their example also shows Wendy as the last item)
Richard
Michelle
Jay
Harriet
Wendy
Then I do nothing else except I click the button btnReversingAnArray again and then it displays correctly.
Wendy
Richard
Michelle
[code]....
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Jan 16, 2009
Im trying and failing to do the following: I have 90 textboxes named N1, N2, N3, N4 etc. I am generating a random number from 1 to 90 on the press of a button. If 1 is the number randomly generated then i would like the textbox N1 to to change its behaviour for example change background color. Apart from a Massseeeeeev if statement is there no way to loop through all these textboxes until the number generated matched the number in the name of the textbox? In VB 6 i used a control array so N(1), N(2), etc.
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Oct 6, 2009
I have a VBS script that allows me to do a recursive search through a specific registry key to find a key value in multiple of the key directories. And unfortunately it dosn't want to work properly with vb.net in my visual studio even when i try to make the syntax changes
just look through the HKLM\MICROSOFT key to search for any occurences of "DigitalProductID"
Const numRoot = &H80000002
Const strRoot = "HKEY_LOCAL_MACHINE"
Const myRoot = "SOFTWARE\Microsoft"
[Code].....
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