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