search for: constrante

Displaying 4 results from an estimated 4 matches for "constrante".

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2005 Oct 19
5
Range plots (lattice or base?)
...quite a while for me to modify the bwplot code to get what I want and create a new graph type, assuming I could get it to work at all. Does anyone know of an easier way to get what I want, with and example? Lattice, grid, base, whatever, I don't especially care what tools I need to use. My only constrante is that I feed it the values required as a dataframe rather than calculate it on the fly so if we change our minds about UCL method or percentiles there is no problem. Thanks in advance, Mike Michael Bock PhD ENVIRON International Corporation 136 Commerical Street, Suite 402 Portland, ME 04101 p...
2006 Apr 23
1
help! A quetion about the Elasticnet package in R
Can anybody help me to run the Elasticnet package of R to build some model, i am a freshman to R language , when i use the Elasticnet package to my data, it always reture a error, but i can't settle that problem. I consider if there is any constrant of the data to that package? Can anyone help me to run the elasticnet and check my data as you convenient? I put the data in attachment. Thank
2009 May 26
1
R for arma mdel with constraints on parameters
Hi, i am learning R recently and find it very helpful in time series model. In ARMA model, given (p,q) it can get the estimation of a[i] and b[j] easily with arima() function. X[t] = a[1]X[t-1] + ... + a[p]X[t-p] + e[t] + b[1]e[t-1] + ... + b[q]e[t-q] but in my recent data model, i met a problem. In the ARMA model, p and q are fixed, but there are some constraints in the parameters
2006 Jun 12
0
table relationships
is it correct that even if the database doesn''t support or tables were not configured for Foreign Keys and / constrants , that you can still manage the relations using Rails, using model methods like, "belong_to", "has_one", and "has_many"? TIA Stuart -------------- next part -------------- An HTML attachment was scrubbed... URL: