Displaying 2 results from an estimated 2 matches for "plavix".
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planix
2010 Dec 12
1
Tukey HSD not working
Drug US1 US2 Aptecha
Celebrex 235.54 269.99 121.02
Detrol LA 157.99 190.99 55.3
Flomax 166.00 190.99 93.45
Lipitor 174.99 200.99 137.7
Novaldex 108.6 129.99 22.48
Norvasc 186.66 203.99 161.93
Plavix 107.99 106.99 64.53
Prevacid 117.39 134.99 59.83
Prilosec 115.99 126.99 57.75
Zyrtec 181.1 200.99 58.79
US1=c(235.54,157.99,166,174.99,108.60,186.66,107.99,117.39,115.99,181.10)
US2=c(269.99,190.99,190.99,200.99,129.99,203.99,106.99,134.99,126.99,200.99)
Aptecha=c(121.02,55.30,93.45,137.70,22.48,1...
2005 Oct 19
1
nlme Singularity in backsolve at level 0, block 1
Hi,
I am hoping some one can help with this.
I am using nlme to fit a random coefficients model. It ran for hours before returning
Error: Singularity in backsolve at level 0, block 1
The model is
> plavix.nlme<-nlme(PLX_NRX~loglike(PLX_NRX,PD4_42D,GAT_34D,VIS_42D,MSL_42D,SPE_ROL,XM2_DUM,THX_DUM,b0,b1,b2,b3,b4,b5,b6,b7,alpha),
+ data=data,
+ fixed=list(b0 + b1+b2+b3+b4+b5+b6+b7+alpha~1),
+ random=b0+b1+b2+b3+b4+b5+b6+b7~1|menum,
+
+ start=c(b0=0,b1=0,b2=0,b3=0,b4=0,b5=0,b6=0,b7=0,alpha=5)
+ )
Ca...