Displaying 3 results from an estimated 3 matches for "cottonwood".
2009 Sep 29
1
vectors levels are carried through to subsets...
...Emergent 25x75 Hydroseed 25x75 Hydroseed 25x75 Hydroseed
25x75
[19] Hydroseed 25x75 Hydroseed 25x75 Hydroseed 25x75 Hydroseed 25x75
Hydroseed 25x75 Hydroseed 25x75 Hydroseed 25x75 Hydroseed 25x75 Hydroseed
25x75
[28] Hydroseed 25x75 Hydroseed 25x75 Hydroseed 25x75 Hydroseed 25x75
25 Levels: Black Cottonwood Black Cottonwood Enhanced Emergent Emergent
25x75 Floodplain 1 Floodplain 2 Floodplain 3 Hydroseed 25x75 ... Western Red
Cedar Enhanced
This seems rather innocuous; however, when I run a by statement, it returns
a list with 25 entries, 23 of which are of course NA....is there a way to
avoid this?...
2009 Oct 21
1
How do I vectorize this loop....
...d I need to calculate
the square error based on the Expected Mean (ie, Survival). The code looks
up the expectation for each zone and applies for each sample in the zone
using a loop:
Data1 <- data.frame(Sample=1:6, Live =c(24,25,30,31,22,23), Baseline =
c(35,35,35,32,34,33),Zone = c(rep("Cottonwood",3),rep("OregonAsh",3)))
Data2 <- data.frame(Zone = c("Cottonwood","OregonAsh"), Survival =
c(0.83,0.76))
for (i in 1:nrow(Data1)) #####(Yi -Ybar*Yo)^2
Data1$SquaredError[i] <- (Data1$Live[i] -
Data2$Survival[which(Data1$Zone[i]==Data2$Zone)]*Data1$Baseli...
2007 Oct 09
3
which pci has the dell / hp
I'm trying to find the right Digium card for the
Dell 2950
Dell 2850
HP DL380 G3
HP DL360 G3
Are these 3.3v or 5.0v machines ? I am out of the office, and need to
buy a card today.
I am looking at either the TE407 or TE412, and would appreciate any help. :)
Julian