Standard Deviation Formula Without Forms?
Oct 10, 2010Sub Main()
Dim NumberofItems As Double = InputBox("enter a number", "enter a number")
Dim Number As Double
[Code]......
Sub Main()
Dim NumberofItems As Double = InputBox("enter a number", "enter a number")
Dim Number As Double
[Code]......
I seem to figure out why my code is not for finding mean and st dev because the code i wrote for finding the sum is working and mean = sum/N so im confused i think i might have the wrong formula/code for standard deviation tho..i just found it online..
Private Sub btnDisplayMean_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDisplayMean.Click
Dim Mean As Integer
Dim Sum As Integer
For J = 0 To MyArray.Count - 1
[Code]...
How will i compute Standard Deviation in LINQ? How do i convert Average in decimal in LINQ? I'm working on the code below. I already got the Average but it's in whole value not decimal. I need a four point decimal for my Average. Help please.
Private Sub Compute_VIT_MeanSD()
Dim decAverage As Decimal
Dim msg As String = ""
[code]....
I can't figure out how to compute the standard deviation from SCORES.TEXT, data(1) Here is my code so far:
[Code]...
Im working on writing a program for doing standard deviation and as of right now im running into one slight issue with subtracting my mean from the original numbers. I will post most of my code so you can get an over view but i mostly just want help on this one little part for now. Im going to be making a website for school and put some programming stuff on it so i wanted to make just some random programs for it so this is school related but not really homework. It's line 26 and 27 that this is relating to. When i put a stop in my code and look at the result of arrayDifferences it gives me 0.0 when it should be -1. I know i can go this route and say arrayDifferences(1) = arrayDifferences(1) - arrayAvg but seeing as how i want this to be a random number of numbers input by the user i cant do that.
CODE:
What is the standard font to use on forms? The default font in vb.net is "Microsoft Sans Serif" size - 8.5, but it looks small, and users complaining on too small font. When changing to size - 9 or bigger it looks not proffesional. Also, I have tryed other fonts and they don't look standard.
View 5 RepliesI've run into an issue with Access Key in either Visual Basic or C#... also happens whether on my windows 7 64 but laptop or my Windows Vista 32 bit laptop - in Visual Studio 2010 professional... I create an Access Key (for example E&xit)... while the underline under the x shows up in the development area, it does NOT show up when I run the application NOR does it work... for example, press alt-x does not run the code associated with the exit (nor does a break into that code show it gets into that code).When I try it in a menu, it is a little different at first the underline under the access key does not show up but then after I access something by hand, it sometimes shows up and is usable.
View 1 RepliesI build program to launch application(launch application can as local profile or can as network credentials) using Advapi32 "Create Process WithLogonW".but I got the problem, I can't capture message of standard output(Stdout) and Standard Error(stderr).could everyone help me how to capture message and the code?
View 1 RepliesI usually use standard button and do the settings like causevalidation etc if required.
i decided to use toolstrip and inserted some buttons but end up that it doesn't do the validation for control and also doesn't call leave event of textbox control.
so my question is, anyway to use regular button functionality for toolstripbutton or there is a way to add regular button on toolstrip.
I want to place two radio buttons in so I can select one of them to use one formula, and then select the other to use another formula. I want to use the I=P(1+r)^n formula and I=P(1-r)^n formula with the radio button text showing Appreciation and Depreciation.
Heres my copy of the original code.
Public Class Form1
Private Sub cmdExit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdExit.Click
End
End Sub
[CODE].......................
I am trying to add a TabPage containing a UserControl to a TabControl at runtime, because the number of TabPages to add are determined at runtime.
The UserControl (objDataInfo) is just two Textboxes, two labels and two Radiobuttons, nothing too exciting...
The TextBoxes have their Anchor properties set to Left, Up, Right so they scale with the width of the usercontrol.
The TabPages are added in the constructor of the form, which takes the number of tabpages to create (n) as an argument:
vb.net
Dim cList As List(Of objDataInfo)
Public Sub New(ByVal n As Integer)
[Code]....
So... How can I get the standard BackColor of a standard TabPage?
(I tried leaving out the usercontrol all-together, but the TabPage still has a gray background...)
I noticed that adding a MenuStrip (from the Toolbox) to my form design doesn't yield a menu bar like many native Windows applications. Instead I get a menu bar like Visual Studio's own. None of the style settings for MenuStrip appear to mimic the much more common native menu bar.Is there a way to add a menu bar to my Windows Forms application that looks the same as the one you see in Notepad, Task Manager and others? (Preferably with the designer, but I wouldn't mind adding it programmatically either.)
View 3 Replies1) Can anyone post a link or tell me the differences between these versions of VISUAL STUDIO please? >>
Standard, Professional, Team Suite, Team Foundation Server Standard & Team Foundation Server WorkGroup Edition
2) I imagine Team Foundation Server WorkGroup Edition is the most expensive and therefore has the most functionality?
3) Are there any others I have not mentioned?
check the attached 2 file. one is .docs file another is .bmp file. Problem is that i want add that formula in database through vb.net. what will be data type in sql serve? and how to manage in vb.net??
View 1 RepliesI use the following columns stored in a SQL table called tb_player:
Date of Birth (Date), Times Played (Integer), Versions (Integer)
to calculate a "playvalue" (integer) in the following formula:
playvalue = (Today - Date of Birth) * Times Played * Versions
I display upto 100 of these records with the associataed playvalue on a webpage at any time.
My question is, what is the most efficient way of calculating this playvalue given it will change only once a day, due to the (today-date of birth) changing? The other values (times played & versions) remain the same.
Is there a better way than calculating this on the fly each time for the 100 records? If so, is it more efficient to do the calculation in a stored proc or in VB.NET/C#?
I am reproducing a program written in C to vb.net and I am getting different results on a math formula. I am sure it is something simple that I am overlooking. Here is the formula in C
num = (10 * 9 * 80900 * 0501) & 0xffff;
Here is the same formula in vb.net
num = (10 * 9 * 80900 * 0501) AND &HFF
how to generate the formula. want to use arraylist to store and for loops to loop the formula til the system can detect which staff it should giv the ticket to..below is the scenario:this is a helpdesk system..so each ticket they submit muz be auto assigned to a staff to attend their ticket..each staff has a different quota..so i came out wid this algorithm on hw to determine who the ticket shld go to..
for ex: i set one ticket's quota is 7%
staff A's quota - 47% staff B's quota - 35% staff C's quota - 18% so to knw how many tickets A get den B getx 1 ticket and how many tickets B get den C gets 1i came out wid a calculation like this -
Staff A - 47% / 7% = 6.7(max no.of tickets he can receive foe a period of time)
Staff B - 35% / 7% = 5
Staff C - 18% / 7% = 2.5
so first i compare A&B whr i took 6.7/5 = 1.3 -> so every 1.3 ticket A gets,B gets 1 ticket den i compare B&C whr i took 5/2.5 = 2 -> so every 2 ticket B gets,C gets 1 ticket i wanna implement this concept in my code..but i dunno how to come up wid this formula..
First the requirements: By management requirements, I can't use open source code. I need the users to define their own formulas for a project. My users don't know how to code. The formulas need to be saved somehow, and being read later. I need to debug the formulas written, so I need to be able to see and understand them. The formulas used are quite specialized and specific (actuarial formulas). Adding new formulas (functionality) must be done in fast and maintainable way.
[Code].....
I need a code that will convert decimal to binary. My current code doesn't work and just crashes, any suggestions on what I should do
For i = 1 To 17
Me.lstDec.Items.Add(i)
[code].....
Using VB.Net (Windows Application)[cod]e...
f1 = a + b * c means i have to pass the value a = textbox1.text, b= textbox2.text, c = textbox3.text
I have a formula, found in an Excel sheet that I have to convert to vb.net...I can't figure it out, eventhough it's seems a quite easy formula to me.the formula is: Mod(X + Int(Y/100000);20)In fact if I render some values...and use the Mod function in Excel or in VB.NET it gives me other results.
View 2 RepliesI have made calculator in visual basic that can calculate the costs of products. You first select the type of product. Then you insert the dimensions. After that it calculates de costs. The type op products are stored in a Access database. In this database is stored a formula as a string. The problem is that i can't caculate the selected string with the formula and the given dimensions.
View 10 RepliesIn the user input of a textbox I would like that the user can input a formula to make it easier for him. So instead of inputing 400 I would like the user to have the possibility to input as 8*50. Is there a command for vb2008 to calculate the answer of this formula inputed by a string ?
View 2 RepliesI'm trying to create a calculator that does this formula : Amount=Principal*(1+InterestRate) The point of it is to Calculate the compound interest earned over however many years the user selects between 1-15 from a listbox. The user also inputs the investment & interest rate. When calculate is clicked the results show in another listbox below.
year 1 $$$$$$
year 2 $$$$$$
etc
[Code]....
I stopped the code at Year 2 as it repeats the ElseIf to EndIf unitl selectedIndex = 15 & intYear 16.
it works for Year 1 but the problem comes with Year 2-15. it needs to take the value from the previous result in lstOutput and use it in the formula for principle.
It's possible to calculate a string that has a formula something like:
dim val as integer
dim formula as string = "(5/1.5) + 10"
val = formula
And the result should be 13.33
I have created crystal report for billing summary purpose in windows application.I have sorted out my data on billdate. now i want to claculate subtotal on datewise in crystal report then how to write the formula for that.
View 3 RepliesI want to write a formula to SUM from column B4 to M4, this should be done using vb.net programming.
I tried using the following stuff:
oXLWsheet.Range(4, 14).Formula = "=SUM(oXLWsheet!$B$4:M$4)"
"=SUM(B4:M4)"
"=SUM(B4,C4,D4,E4,F4,G4,H4,I4,J4,K4,L4,M4)"
Nothing is working for me. I'm getting the following error when I run the code:
"Exception from HRESULT: 0x800A03EC".
I have a text box for user key in a formula,like '1+3-5',and i need to solve and display the answer.
Also need to handle the brackets,like '9+(2*4)'.
Operation is plus,minus,multiply,devide.
I want to create an algorithm or formula that gives me the following combinations below. I have manually printed out all the combinations for the example containing 4 tables with respective values.
This is not permutation because i need the combinations to always follow the unique format [code]...
I am using Crystal Report 10.5.3700.0. I have created a report which is using stored procedure. Now from vb.net code (in VS2005) I set the selection formula like: proSaleByPerson;1.PersonsId=1
But when the report load its giving following error "Query Engine Error 'ADO Error Code:0x'", Failed to open a rowset. Keep in mind that all other reports are working fine only that reports creat problem which are using stored procedure, when setting the selection formula.