Displaying 4 results from an estimated 4 matches for "veolia".
2007 Nov 30
1
formula substitution by its calculated value
...) = f_ox*(1-f_inox)
I want to replace f_ox*(1-f_inox) by 0.1
Further more, I can not manage to understand the formula type, which I guess would correspond to the kind of things I am dealing with.
Would you have any clue or insights on this?
Pascal Boisson
Assainissement - Traitement Biologique
Veolia Environnement - Centre de Recherche sur l'Eau
Anjou Recherche
Chemin de la Digue - BP 76
78603 Maisons Laffitte Cedex
Tel. :? +33 (0)1 34 93 81 44
Fax. : +33 (0)1 34 93 31 10
pascal.boisson at veolia.com
?
Please consider your environmental responsibility before printing this e-mail
__________...
2007 Mar 08
2
sending a vector of characters as arguments for a function
Dear all,
It seems to be a recurrent problem to me and I am asking your help to
get over it once for all ...
My idea is :
I have variables C_1, C_2, C_3 ... that corresponds to vectors of size
n, and I would like to cbind them.
I get a vector of their names using : temp<- ls(pat="C")
And I like to find a way to use this vector temp as an argument to
cbind.
2009 Sep 21
1
RODBC : using and passing queries that use " in some arguments
Dear R users,
I am trying to connect R to data that is in a Access Database but I have problem with the construction of queries using special characters.
I am using RODBC package.
The following is working :
> MyQuery<-paste("SELECT first( (DateHeure) ) , avg(NNO3_AT322_OUT_moy) AS Cond FROM Colonne_3 ")
> Col3<-sqlQuery(con, query=MyQuery)
> Col3
2009 Feb 26
1
gplot problems with faceting
Dear R-Listers,
I am very confused with what seems to be a misuse of the faceting options with gplot function and I hope you might help me on this.
z contains various simulation results from simulations with different set of parameters.
I melt my data to have the following data.frame structure :
> str(z)
'data.frame': 12383 obs. of 5 variables:
$ vID : num 1 2 3 4 5 6 7 8