How To Implement Linear Regression On Data

Apr 15, 2011

I'm looking for a reference showing how to implement linear regression on data in VB2005

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C# - Linear Regression/trend Line With Ms Charting

Jan 4, 2011

I have data that are numbers both on x and y and have charted them using mschart 4.0

I need to add a trend line/linear regression to a bunch of points I have. The data on x and y are both numbers (no dates anywhere), for instance (33.4,45.1) would be a point.

In the samples I downloaded from the first link I found a linear regression sample in the code files forecasting.aspx(.cs), and I found this ms documentation

I have added a linear regression line to the chart with the following line (once all other data it setup etc)

Chart1.DataManipulator.FinancialFormula(FinancialFormula.Forecasting, parameters, "Input:Y", "Forecasting:Y,Range:Y,Range:Y2");

The problem with both of these is that they assume dates are used. I went ahead and implemented it anyway, but my regression line starts at around the x value of 20, and will go to an x value of the max x value of one of the points (almost 70) if I give the parameter Period a value of 700. But since it doesn't start at x value 0 I don't trust it is correct.

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Is There A Graphic Regression Testing Tool That Anyone Knows Of

Mar 2, 2011

A long time ago. before .Net net existed, I used an automated and a graphical tool. It seens to me that it was made by Microsoft. Is there a graphic regression testing tool that anyone knows of?

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Jan 20, 2009

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For instance If I am checking for some airline reservation booking. After creating a booking, On view Booking Summary Page I am testing weather it is displaying cancel booking button or not. For this I am using the following code:
Try Assert.IsTrue(_internetExplorer.Button(Find.ById(New Regex("CBooking"))).Exists)
Catch ex As Exception d_logger.LogResultTextFile("Cancel Button does not Exist", True, False) End Try
I am checking this by running this in a loop for no of bookings created. I want to keep running the test even if in one booking it wont finds the button but keep checking for other bookings.

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VS 2005 : Generating A Folder Tree Using Regression?

Apr 1, 2010

This problem has been doing my head in all day and wouldn't mind a bit of advice. Basically I have a table in my db called tblTree which looks a bit like this :

TreeId, ParentId
1 0
2 0
3 2

Each row represent a folder.The TreeId is a unique Primary Key.The ParentId refers to the folder this belongs in so in the above example TreeId 3 is a folder created in the the folder represented by TreeId 2.The 0 in ParentId represents the root.How in Gods name am i supposed to create a folder structure using this table?

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Oct 25, 2011

I want to use VB for linear programming. Can any one tell me the best approach or give sample codes.

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IDE :: Horizontal Slider Bars - Fit A Regression To A Subset Of Data

Jan 18, 2010

I have a set of x, eg 288, data values. The user wants to fit a regression to a subset of this data, eg (2 - 200), then she wants to analyse within a subset of this fitted range, eg at 20 and 100. So, on my form are four Hor. Slider Bars, to set the lower and upper bounds to the fitting and the analysis. The two that set the lower bounds work fine. The two that set the upper bounds are getting corrupted somehow outside of my code and I do not know how to solve this problem. What happens is that when I click on the right hand arrow on the slider bar, the program runs through my function with the correct values whilst the arrow is down, goes out of my code and then immediately comes back into my code, but with the wrong value set into the Hor. Slider Bar fields that I am working with, eg the .Value field. The new value is always 9 below the maximum that it can be, but I can see no connection to this number.

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[2008] Linear Gauge Control?

Feb 28, 2012

Basically a vertical progress bar with a user settable scale configurable either vertically or horizontally. Fancier looking the better.There's a lot of nice ones in commercial packages, but they come bundled with 80 other controls and generally have a price tag of several hundreds to thousands of dollars - which is a hard sell to a manager when you only need one control from the bundle.My other option is to embark on writing my own; something I don't look forward to and don't expect to look nearly as slick or "3d" as some of the things out there.

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Non-linear Performance In Scaled Background Images?

Aug 5, 2011

I have a form that scales a background image. The form is painted 30 times a second (using Invalidate so it redraws the whole background image). When the window size is less than half my screen (1366x768), Task Manager reports that the program's CPU usage is 00. If I increase this a few pixels in width, all of a sudden the CPU usage jumps up to 50+. I can get up to about 606000 pixels in the client rectangle before it starts exhibiting this behavior

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VS 2010 Make A Mouse Path From A To B Non-linear?

Feb 26, 2011

i think the title says all what needs to be said, so i wanna make my mouse follow a random path from A to B, without straight lines..

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Write Xml Documents In A Linear Fashion Is To Use The XmlTextReader?

Mar 20, 2006

OverviewThe fastest way to read or write Xml documents in a linear fashion is to use the XmlTextReader and XmlTextWriter classes in the System.Xml namespace. If read- or write-only forward-only access is too limiting, however, the System.Xml.XmlDocument class provides the ability to easily modify existing documents (adding, removing, or modifying elements and / or attributes) and leverages the powerful search capabilities of XPath.

Getting StartedThe XmlDocument can load Xml from a string in memory, from a URL, or from a file path. There are two methods that enable this functionality: Load and LoadXml. To load a document from either a URL or file path, use the Load method. Following is an example of using the LoadXml method to load an Xml document from memory. (NOTE: we will be working with this particular document throughout this article)

[Code]...

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Oct 28, 2009

I need a VB.NET program to solve linear system with any number of equations

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Jun 1, 2012

I try to achieve to paint a form with a gradient backcolor and overlap an image with transparency. This is possible? I want using a tile background image with transparent background and paint the background with a custom linear gradient.

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Mar 14, 2011

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Apr 5, 2012

We have a vb.net application where we have implemented multithreading. We determined that we need to either implement .net remoting or WCF. After researching remoting in .NET on MSDN, Microsoft considers remoting legacy for .NET framework 4.0 and recommends using WCF instead. My question is: can we implement WCF functionality into our VB.NET application or do we need to rewrite the app from the ground up in WCF?

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Sep 1, 2010

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Imports System.Threading
Public Class frmAdjustments

Function LaunchForm() As Integer[code].....

I am new to .net programming and could use any suggestions you may have.  I'm trying to grasp the concept of multithreading apps and would like to have both my main form (Adjustments) and the (frmNewAdjustments) form to load concurrently.Here is the error I receive with the code above: Overload resolution failed because no accessible 'New' can be called with these arguments:

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Sep 3, 2010

How would you create an extension method which enables me to do the following (warning: exteme pseudo-code)...

class FooBar
{
Int32 Foo { get; set; }
String Bar { get; set; }
}
new FooBar().With(fb => new Func<FooBar, Object>(instance =>

[Code]...

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Mar 13, 2011

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public static void ShouldEqual<T>(this T actualValue, T expectedValue) {Assert.AreEqual(expectedValue, actualValue); }

[Code]...

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Mar 9, 2012

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C# answers are acceptable because it's not that hard to translate.

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Aug 4, 2010

In .net (c# or vb) expressions, how would you implement SQL's handy IN() functionality?i.e. value in (1, 2, 4, 7)rather than:

value = 1 or value = 2 or value = 4 or value = 7

There are obviously many ways, I'm looking for the most clean and simple!

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Mar 12, 2010

What is the best practice for when to implement IDisposable? Is the best rule of thumb to implement it if you have one managed object in the class, or does it depend if the object was created in the class or just passed in? Should I also do it for classes with no managed objects at all?

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Aug 7, 2009

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interface IEmissaryRoot : IDispatch {
id(0x68030000), propget]
out, retval] IActivityCol** );

[code]....

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Jan 14, 2012

i am using code to the value textbox2.text in the report and using the code like below [code]the textbox2 take various values in run time but when i run the code it display only the final value intermediated values are not displayed the whole situation is as follows.[code]

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Aug 12, 2011

I would like to use regex for a txt file as follows. What I want to do is to get the whole text if CRC is other than 00000000. The content of the file below has 2 blocks of data below. And I should get the second one after the regex operation.

[Code]...

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Jun 18, 2010

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How to implement Blowfish in VB 6 and VB.net

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[Code]...

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Nov 23, 2010

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Jun 22, 2010

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Apr 22, 2010

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Function Map(a,f)
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for each i in a
f(i)

[code].....

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Mar 10, 2012

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public static SqlInt32 MurmurHash3(SqlBinary data)
{
const UInt32 c1 = 0xcc9e2d51;
const UInt32 c2 = 0x1b873593;

[code].....

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[Code]...

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Care to suggest any good way of implementing messageboxes?

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I would like to be able to do something similar to the example below:

CODE:

Im doing this in Vb.net On Windows 7 .

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