Statistics Extension: Is there any way to use Statistics Ext. with RealTime Graph.( On ChartFX For .NET 6.2) ?

[User (Legacy)]

Hello from Agilent,

1. Test case is to use and display HISTOGRAM for a Real Time Graph.

2. The ChartFx Statistics component provide this functionality, but the as

the enclosed example (with the component) exbhit,it is for analyzing an

offline/static set of data.

3. To accomplish the task to display or to use the Histograph in real time,

we need to be aware of a mechanism where we can supply real time data to the

component, and the component in turn can provide analysis displayed

4. Please provide us with anyone (all of them will be a big help..........)

of the mentioned:

    a. A demo code which can expose all the required mechanism to accomplish

the mentioned

    b. A document to explain the required interfaces to the component

    c. Directions where we can find more advanced information

Thanks

Rakesh kumar

for

Agilent technology International

/*************Example Given for Statistics Component *******************/

// Create the Statistics extension

// If the extension is created at design-time you don't need to create it

here

Statistics statistics1 = new Statistics();

statistics1.Chart = chart1;

//Populating the Chart with random data

chart1.OpenData(SoftwareFX.ChartFX.COD.Values,1,100);

int j;

Random rnd = new Random();

double d1 = rnd.Next(100)+100;

double d2 = rnd.Next(100);

double d3 = rnd.Next(10);

for (j = 0; j < 100; j++)

{

    int nSpecial = rnd.Next(40);

    if (nSpecial == 1)

        chart1.Value[0,j] = 200 + rnd.Next(100);

    else

        if (nSpecial == 2)

            chart1.Value[0,j] = rnd.Next(100);

        else

            chart1.Value[0,j] = 100 + ((Math.Sin(((j*10+d2))/d1) +

1)*40)+rnd.Next(10)+d3;

}

chart1.CloseData(SoftwareFX.ChartFX.COD.Values);

chart1.GalleryObj = statistics1.Gallery.Histogram;

statistics1.Gallery.Histogram.LimitLeft = 6;

statistics1.Gallery.Histogram.LimitRight = 14;

[Software FX]

I have never combined Real-Time chart with the statistical extension.

However, I don't see any reason why it wouldn't work.

A histogram, in particular will count the number of values for each

interval, so the number of bars (number of intervals) will remain constant

and can be specified by you, so unlike a regular bar chart, passing data to

it in real-time will not cause the chart to scroll but to recalculate the

intervals every time.

I don't have any samples or specific documentation about this combination,

you can find documentation about real-time chart in the Chart FX's

programmer's guide but you will have to combine that with the documentation

for the statistical extension.

This newsgroup is used to answer specific questions about the functionality

of the product, I think what you are looking for is more of a one-to-one

support. You can contact our support and pre-sales dept. either by e-mail or

phone and they can help you achieve what you want and direct you in the

right way.

-- 

FP

Software FX, Inc.

[User (Legacy)]

Hello from Agilent,

There are few query regarding Statistical Extension ( Histogram).

1.    Do we have any control over Y-Axis or Can we Scale it in terms of Max

, Min  and step Value ?

        I am scaling my Y-axis, But it wouldn't reflect back to me . Is

there any specific sequence , which we should follow to achieve this?

2.    On X-Axis we have control in terms of Intervals , Can we put label

there to show its actual value ?

3     As I already communicated that I am using this extension in with Real

Time Graph, Its work fine .

        But the Problem is , Whenever i get new Data point , I have to

initialize the Chart Component with all the Data Point. (Starting from first

data point to Latest one).

        Its work fine with small set of data point ( less then 10,000) ,

Create problem in terms of time delay , when the Data Set goes to one lakh

point.

        Is there any way , by which we can get the result without passing

the whole data set again and again?

Thanks

Rakesh kumar

for

Agilent technology International

"SoftwareFX Support" <support@softwarefx.com> wrote in message

news:hJ4g60ZxDHA.3808@WEBSERVER1...

> I have never combined Real-Time chart with the statistical extension.

> However, I don't see any reason why it wouldn't work.

>

> A histogram, in particular will count the number of values for each

> interval, so the number of bars (number of intervals) will remain constant

> and can be specified by you, so unlike a regular bar chart, passing data

to

> it in real-time will not cause the chart to scroll but to recalculate the

> intervals every time.

>

> I don't have any samples or specific documentation about this combination,

> you can find documentation about real-time chart in the Chart FX's

> programmer's guide but you will have to combine that with the

documentation

> for the statistical extension.

>

> This newsgroup is used to answer specific questions about the

functionality

> of the product, I think what you are looking for is more of a one-to-one

> support. You can contact our support and pre-sales dept. either by e-mail

or

> phone and they can help you achieve what you want and direct you in the

> right way.

>

> -- 

> FP

> Software FX, Inc.

>

>

[Software FX]

> 1.    Do we have any control over Y-Axis or Can we Scale it in terms of

Max

> , Min  and step Value ?

Actually I realized that you don't. The Y-Axis is calculated based of the

calculated data. However, we realized this is going to be a problem in some

cases so we are going to reset the Y-Axis ONLY if AutoScale is set to true

(default) but we will leave it untouched. Look for this change in the next

SP.

> 2.    On X-Axis we have control in terms of Intervals , Can we put label

> there to show its actual value ?

The Min and Max of this axis will be taken from the Y-Axis Min and Max at

the time of activation (your data range) or at the time new data is passed

(at CloseData). So you can control these on this way. You can control any

other properties in the X-Axis by obtaining it as an object.

The X-Axis in an interval chart (Histogram, Frequency Polygon, Ogive) is the

secondary X-Axis which can be obtained by doing:

Axis axisX = Axis(AxisItem.X2)

> 3     As I already communicated that I am using this extension in with

Real

> Time Graph, Its work fine .

>        But the Problem is , Whenever i get new Data point , I have to

> initialize the Chart Component with all the Data Point. (Starting from

first

> data point to Latest one).

>        Its work fine with small set of data point ( less then 10,000) ,

> Create problem in terms of time delay , when the Data Set goes to one lakh

> point.

Why do you pass the data again ? why don't you simply add to the current

data ? If you do:

OpenData(COD.Values,<number of series>,>number of values> + 1);

CloseData(COD.Values);

You will keep all the data and will have a new point at the end of each

series.

You should even be able to use Real-Time techniques (please refer to docs.

for details) to add points to the chart maintaining a pre-determine

buffer-size to improve performance.

-- 

FP

Software FX, Inc.

[User (Legacy)]

Hello from Agilent,

Thanks for the quick reply

I did some more R&D to accomplish the task using Statistics Ext.

There are few more query regarding the same.

1.     When would We expect the next SP with the implementation of Control

over Y-Axis?

2.     I did the same as you suggest me to over come the problem of passing

the data again..

        But its not behaving as it should be. Please find out the workspace

in Zip format , help me to come out with a solution.

Thanks

 Rakesh kumar

for

Agilent technology International

[Software FX]

> 1.     When would We expect the next SP with the implementation of Control

> over Y-Axis?

Since we are closing from Dec. 24 to Jan 5, we will not be releasing another

service pack until we come back. However, you can contact our support dept.

for a HotFix that includes these changes, a HotFix is not as well tested as

a service pack and it is not intended for deployment. If you decide to get

it, keep this in mind.

> 2.     I did the same as you suggest me to over come the problem of

passing

> the data again..

>        But its not behaving as it should be. Please find out the workspace

> in Zip format , help me to come out with a solution.

This is sort of related to 1). The Min and Max are being incorrectly reset

when you add new data. The service pack will fix this problem as well.

-- 

FP

Software FX, Inc.

[User (Legacy)]

Hi ,

Thanks for the reply.

There are few more query.

1.    From where I can get the Hotfix?

2.    Is this available on SoftwareFx web site ?

3.    What is the procedure to get this?

4.    Do we need to pay any thing for this Hotfix?

Thanks

Rakesh kumar

Agilent technology International

[Software FX]

Please contact us at support@softwarefx.com for details on how to obtain the

hotifix. Hotfixes, as well as Service Packs, are free of charge.

---

IG

Software FX

"Rakesh kumar" <rakesh_kumar5@agilent.com> wrote in message

news:I%23PhY4QyDHA.3808@WEBSERVER1...

> Hi ,

> Thanks for the reply.

> There are few more query.

>

> 1.    From where I can get the Hotfix?

> 2.    Is this available on SoftwareFx web site ?

> 3.    What is the procedure to get this?

> 4.    Do we need to pay any thing for this Hotfix?

>

>

> Thanks

> Rakesh kumar

> Agilent technology International

>

>

[User (Legacy)]

Hi,

Thanks for the reply.

These is one more thing I want to know about Statistical Extension.

*        We can Categories the X-Axis  into Interval, and we have control

over the number of interval.

          If we have a Data set having value in between  0 - 1 with the

precision of 6 digit.

          It divide the X-Axis into interval and show the number of Data

point fall into that interval .

          It would not show the  actual value range for the interval.

          Is there any way to show the Interval Range on X-Axis ?

*      Can we use this Statistical Ext as helper component to extract

information like Std Deviation , without attaching  with any Graph?

Thanks

Rakesh kumar

Agilent technology International

[User (Legacy)]

Hi ,

There are few more query regarding X-Axis scaling .

Scenerio : Take an Real time example, I am plotting a graph( Histogram ) for

a Power supply(5 Volt).

So there must be some noise and its value will fall between 4.999 to 5.11 at

resolution level 6th digit.

We want to plot this Dataset as a HISTOGARM , I did n't intialize  X-Axis

and assuming that the Max and Min will be internally handled.

The only thing I am providing is Interval .

Would this Extension is smart enough to divide the dataset into provide

number of interval and plot accordingly ?

I tried this but unfortunatly not able taste the success.

*    Is there any ways to achieve the above given functioanlity?

*     How you calculate Max and Min Value for X-Axis , when user wouldn't

set any thing?

Please go through the attached workspace , In this workspace I am using few

Dataset , The Extension would not able to plot Chart if the Data Range is

too less.

Thanks

Rakesh kumar

Agilent technology International

FYI: I am using the Hotfix for the  coming SP for Statistical  Ext.

charterror.bmp

[Software FX]

1) The interval range is shown in the X-Axis, the default number of decimals

displayed however is 2. You need to increase the number of decimals

displayed in the secondary X-Axis (the axis displayed at the bottom of your

histogram, as I explained in a previous posting).

> Can we use this Statistical Ext as helper component to extract

> information like Std Deviation , without attaching  with any Graph?2)

No. The data is extracted from the chart. You can use the Calculator class

to obtain these values without actually having to display them in the chart

but you do need a Chart. Chart FX Statistical is an Extension to Chart FX

and it is not intended to be used alone. It needs to be linked to a chart in

order to work.

-- 

FP

Software FX, Inc.

[Software FX]

> Would this Extension is smart enough to divide the dataset into provide

> number of interval and plot accordingly ?

As you said, the number of intervals is given by you. Intervals are taken

from Min to Max (Data) and divided equally. For example if your data goes

from 0 to 100 and you have 10 intervals the intervals will be 0 - 10, 10 -

20; 20-30,...

The Min and Max are taken from the data.

Did you get the HotFix ?

-- 

FP

Software FX, Inc.

[User (Legacy)]

Hi,

Yes I got the HotFix , and I am using it. Thanks

In my last Query I provided you a test workspace in which I tested

Statistical Ext HotFix with few DataSet.

Have you gone through it? Seems your reply do not reflect this.

Seems I was not able to describe the scenerio. Let me do it again:

I am using this Ext. with a Data Range which is very less (  may be change

at third decimal digit.)

I test the component for my requirement , But It fail.

In my workspace I providen few DataSet with different Data Range and the

result of that is provided in attached Excel sheet.

Please go through this sheet and workpace and tell me whether I can use this

component in the described scenerio.

Thanks

Rakesh kumar

Agilent technology International

FYI : Workspace is attached with my last query

[User (Legacy)]

Hi,

I am waiting for reply.

Thanks

Rakesh kumar

Agilent Technology International

StatExt Detail study.zip

[Software FX]

Add the following line to your code BEFORE setting the data:

chart1.AxisY.ForceZero = false;

By default, the Min is set to Zero regardless of the data, this setting will

prevent that.

After making your Chart a Histogram, add the following code:

chart1.Axis[(int)AxisItem.X2].LabelsFormat.Decimals = 5; // At least, you

need to display as many decimals as necessary to make the intervals

different from each other

chart1.Axis[(int)AxisItem.X2].Style &= ~AxisStyle.AutoFirstLabel; // Prevent

first label to be rounded

-- 

FP

Software FX, Inc.