Re: Question on modeling data?
>I am trying to construct a model that regresses company revenue (by
>product line) to direct mail volume and some other independent
>variables over time such as online ad spending. I want to show what
>effect that changes in different mail volume and ad spending would
>have in product line revenue. There are 6 product lines and 7 years
>data(2000-2006), so the dataset has 42 observations. But since the
>independent variables vary over the year but don't vary from product
>line to product line, it's not quite a TSCS...Model Revisions
First of all, I want to take this opportunity to thank all the people
that take the time to answer all the questions, the good
and the bad ones.
How do you keep track of the latest revision levels in the model?
When I go to Info>Relationships & Parameters, I see ProI_revision="A",
but how do I change the rev level to B or higher.
I tried: Tools>Parameters>Modifiy, but ProI_revision is not listed to
make the change.
In the drawing, I change the rev letter in the title block going thru
the Properties, but I don't think this the correct way of doing...US-TX-Austin: Database Architect/Admin, Data Modeling, SQL, UMS, Model 204; 1Y (45284957638)
US-TX-Austin: Database Architect/Admin, Data Modeling, SQL, UMS, Model 204; 1Y (45284957638)
Position: Database Architect/Admin
Location: Austin TX
Skills: Experience designing and developing enterprise-wide database
Skilled in the use of queries and analysis tools to interface
with legacy data in support of both internal and external
BS in Compu...help with coding model
If someone out there can send back a couple of lines of
matlab code so I can run this model that would be cool.
dN_i/dt = r*N_i - Sum(over j)*Beta_i-j*N_i*B_ j +
(mu*Q/2)*(N_i+1 + N_i-1) - mu*N_i
dB_i/dt = Sum(over j)*alpha_i-j*N_ j*B_i
So the model is a 2D ODE
Pathogen of type i = N_i(t)
B-cell of type i = B_i(t)
In my notation, N_i = density of pathogen of type i,
B_i = " " B-cell
All I need is the first lines of code that define the above
...US-TX-Austin: SR. RF System Eng., WPAN chipsets, OFDM/802.11 standards; Perm (45336914403)
US-TX-Austin: SR. RF System Eng., WPAN chipsets, OFDM/802.11 standards; Perm (45336914403)
Position: SR. RF System Eng.
Location: Austin TX
Skills: BSEE and 7 yrs of architecture and system engineering
experience in Wireless Personal Area Network (WPAN) chip
sets and integrated RF communications design employing OFDM
and 802.11 standards, and Matlab, Simulink, and Agilent ADS.
4+yrs exp in RF...dynamic simulation model of the vector controlled PM brushless AC drive
1. how to get the block diagram for u<umax ? which block i need to
2. anyone can teach me how to design this model?
...My Model: make your own model and use fit
I some data which I am fitting. It is not important what model we use
so if you have a good suggestion feel free to let me know. My goal is
to repoduce the ripples in my data at high frequency and force it
through a point at zero frequency- so I am not sure I can use
polyfit(but I am sure I am wrong about that). I saw some algorithms
on here to do it. But I think you could just do it using fit?
Here is how I thought to do it-
fitoptions('Method','LinearLeastSquares','Robust','on',...Loop Filter Modelling
Hallo, I am relatively new to RF electronics,I need some support fo
modelling my blocks in PLL.The block we have problem is third orde
LoopFilter (L.F). Here we go --->
The Transfer Function (T.F) for L.F -> (ds+1)/s(as**2+bs+c)
we deduced the above T.F -> k1/s + k2/(s-r1)+k3(s-r2)
where r1 and r2 are the roots of the quadratic equation in T.F & a,b,c,
And I reduced it to time domain as k1+k2*e(pow(-r1*t))+k3*e(pow(-r2*t)).
and finally Vo across the output cap is ->
Vo = [k1+k2*e(pow(-r1*t))+k3*e(pow(-r2*t))]* Current_In
Current_In is the current flowing into...TRS-80 Model II Emulator? / 200,000 Model I's?
HAS ANYONE CREATED A TRS-80 MODEL II EMULATOR?
Since the model 4 is emulated with CP/M supported and since the Model
II was sold in smaller numbers (niche machine) is there any benefit for
doing a Model II emulator?
At one time I think portions of source code for Kim Watt's Model 2/16
DOSPLUS II OS were on Ira's site.
Business people might be less nostalgic in wanting to review 8"
diskettes of a 1982 inventory and docs describing the sale of 100
widgets. Nonetheless, if anyone out there has the talent and interest
in doing a M2/16 emulator I'd love to hear abou...xilinx spice models
I' ve registered my account into xilinx form for downloading
the spice models for rocket io etc etc that xilix give on the site.
However these models are encrypted.
How can i use them if they are encrypted. What else i need for using them?
Can i use them in a spice3f5 or LTspice or Orcad environment?
They may only be used in an hspice environment.
Depending on the device, there are also nspice encrypted format models
available, as well as Mentor's spice format.
The only model that is worth anything at all for MGTs is a spice model,
and since we (and others) do n...iSeries model 810 & OS/400 V5R1
Is it possible to use OS/400 V5R1 on an iSeries model 810?
Thanks for any reply,
Yes model 810 is a risc model and fairly new I might add.
(All else fails READ THE INSTRUCTIONS)
"Jep" <hazhazhazhazhaz@spam@is@niet@email@example.com> wrote in message
> Is it possible to use OS/400 V5R1 on an iSeries model 810?
> Thanks for any reply,
> Jeroen Wernsen
You need V5R2 for an 810.
read APAR II13365 http://www.as400service.ibm.com
"Bill" <bwragg@<nospam...ARMA MODEL
Now I need to estimate function with several unknown cofficients.
Probably, I have to use ARMA MODEL. Do you know matlab offers this function
Thank you very much!
yang hong wrote:
> Hi, friends:
> Now I need to estimate function with several unknown cofficients.
> Probably, I have to use ARMA MODEL. Do you know matlab offers this
> function or not?
Take a look at the GARCH Toolbox. The GARCH Overview on this page contains
an example of how to use the toolbox to do this.
http://www.mathworks.com/access/helpdesk/...PROC MODEL Question
Ready to channel your inner PROC MODEL guru?
I am trying to build a model very much like the one described in the
(http://support.sas.com/onlinedoc/913/docMainpage.jsp) PROC MODEL Example
20.2 "A Consumer Demand Model" and I have some questions I was hoping
someone here could answer. Shares of three goods add up to one for every
individual. The model is being built to predict the shares based on the
prices of the three goods. So, the procedure is to model two of the
shares explicitly with a seemingly unrelated regressions model as follows:
title1 ...Re: finite mixture model for SAS #6
you can try both mclust and mixtools in R as pre compiled macros/packages to make a single line code for making mix models in R
The single line command would be mlcustbic(parameters...)
I am not sure which SAS / license or Macro can make mix models
its funny I was working on mix models but using parallel processing on Open MPI this morning for a project on a 1500 cluster.
SAS pricing for multiple clusters is too high even for academics ( >100,000). Thats one reason the nearby Oakridge Lab with 100,000 processors or even UTenn's Kraken cant use SAS for HPC even for academic ...Model Evaluation
I'm in the process of trying to verify how good model output is in
relation actual observed data.
In an effort to do this, I'm attempting to calculate the Root Mean
Squared Error as follows:
First of all - does this make sense? I just want to confirm that my
syntax is appropriate.
Second - is there a built-in function to do this? I know that using
regstats the mean squared error can be found... would it be the same
to simply find the square root of this value for the RMSE?
I should add that when I square t...[rfc-dist] RFC 5591 on Transport Security Model for the Simple Network Management Protocol (SNMP)
A new Request for Comments is now available in online RFC libraries.
Title: Transport Security Model for the
Simple Network Management Protocol (SNMP)
Author: D. Harrington, W. Hardaker
Status: Standards Track
Date: June 2009
I-D Tag: draft-ietf-isms-transport-security-model-14.txt
URL...simulink model and processor model integration
i am trying to work on a combined model of different automotive components whose models are freely available in matlab simulink. with this system, i would like to add a processor model, where i would like to write a code (i assume it typically to be a simulator of that processor). is this interfacing of simulink models with a processor model possible?
Duplicate but the answer's the same:
...Interpolating 3D surface models
I'm trying to find a way to resample surface models to a higher (or
even, in principle, a lower) density of points.
I have mesh models of, say, cars. These are described by a list of
x,y,z points. I also have triangular facet data allowing the model to
be described as a mesh, which may or may not be useful for the
present purposes. Other information, such as textures, materials,
semantic etc is discarded - it's merely the surface shape that is of
interest to me.
I want to resample the surface, generally so that I have a higher
density of points describing it. I tried the meshgri...Verification of SImulink model #3
I'm looking for a simple method to verify a given Simulink
model in terms of availability of parameters. The problem
is as follows: I'm given any Simulink model that contains
some parameters from the Workspace. As the model is not
created by myself I have to check whether all parameters
are already in the workspace. As this process should be
automated I'm looking for a tool that fulfills these
Maybe there exists the ability to something like an error
vector from Simulink when starting the simulation
by 'run...'. This vector s...garchset() modeling thick tailed data
1 - I'm trying to model thick tailed data using garchfit(). In garchset() I tell it to use the t distribution. However when I run the qqplot on the Innovations (residuals) after I do so, the qqplot again indicates that my data is thick tailed!? Shouldn't that have been picked off in the model? Compare the qqplots for the model that is gaussian, and the model that is t distributed. They come out pretty much the same.
2 - Also, can I tell garchset() to use a specified degrees of freedom for the t distribution? How does it by default choose the DoF?
3 - I'm new to Matlab, so ple...How to predict value using the model reg procedure
I am using the reg procedure to build multiple linear regression model for
a dataset. Now I dont know how to use the result model of reg to predict
value. Does anyone know? Thanks a lot!
>I am using the reg procedure to build multiple linear regression model for
>a dataset. Now I dont know how to use the result model of reg to predict
>value. Does anyone know? Thanks a lot!
Do you mean that your data are a time series and you want to predict
into the future? If so, you are using the wrong proc. You need PRO...Shaky monitor on Model III
Ok, the ol' M3 works great. Except the shaky display on the monitor. Not
there all the time, but often. Test is still easy to read, but it's annoying
as hell when it's jumping around about a quarter inch!
Doesn't seem to be a vibrational thing, maybe power related? Haunted?
Ideas, advice welcome.
"jim" <jimbo304ZZZ@comcast.net> wrote in message
> Ok, the ol' M3 works great. Except the shaky display on the monitor. Not
> there all the time, but often. Test is still easy to read, but it'...Modelling question
I need to write a small java-application. I have to build the user-interface
Swing-components (for most users) and out of Awt-components (for users who
How can i model/do this?
- The user-interface is an instance of a direct subclass of java.awt.Frame
- I wanna use the following awt-components: Label, List, TextArea, TextField
- I wanna use the following swing-components: JLabel, JList, JTextArea,
Thanks for your advice,
I'm not really sure I understand what you mean by "model" in your question.
If it wa...Conceptual modeling like in the book
I've just finished reading the nice book: "Data Modeling and
Relational Database Design Volume 1 - Student Guide", by Jan
Speelpenning, Patrice Daux and Jeff Gallus, published by Oracle
University. I really like the way they do their drawings for their
conceptual models (see below for the features of Oracle's book's
conceptual models). In fact, it's a notation that could apply to any
RDBMS and that'S what I'd like to do. But I searched, and searched,
and searched but found no software doing exactly it. I found many
variations of it but not ...[OT] 3D models
Take a look to this link, for those who are interested to 3d models: