Displaying 4 results from an estimated 4 matches for "yield2".
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2006 Jul 07
2
dotplot (lattice) with panel.segments and groups
...panel.dotplot' call (commented) generates the error 'Error in
NextMethod("[") : argument "subscripts" is missing, with no default'. The
other problem is that the colors alternate between the levels of the 'site'
variable, rather than 'year'.
barley$yield2 <- with(barley, yield + 5)
dotplot(site ~ yield | variety, data=barley, groups=year,
yield2=barley$yield2, col=c("gray", "black"),
panel=function(x, y, subscripts, yield2, ...) {
## panel.dotplot(x, y, ...)
panel.segments(x, as.numeric...
2002 Jun 13
2
text and expressions in labels
...#39;m having difficulty combining text and an
expression in the same label.
I just trying to get Yield (kg ha-1) and have the -1 as superscript. What
I came up with doesn't work. I'm stuck at trying to concatenate it with
any other regular text.
yield1 = "Yield (kg ha"
yield2 = expression(^-1)
yield3 = ")"
ylabel = paste(yield1, yield2, yield3)
boxplot(yield.kgha.st~env,data=lsmeans1,
boxwex=0.3,
main='Chinese Hybrids',
ylim=c(0,5300),
sub='',
ylab=ylabel,
xlab='')
any help appreciated,
Josh
-.-.-.-.-.-.-.-.-.-...
2004 Mar 17
0
NLS question:Quadratic plus plateau fit
...termine Economical Optimum Nitrogen
Rates.
The segmented (quadratic + plateau) model only works with some y's, in some
cases I get a "singular gradient" error.
I'll appreciate any ideas in how to solve the singular gradient error.
Thanks,
Jose
# The following code works using yield2 in the nls model but not using yield.
# Economical constants, nitrogen price in dollars per lb and corn price in
dollars per bushel
nprice <- 0.17
cprice <- 2.25
ratio <- nprice/cprice
# Example data,
nrate <- c(0,60,90,120,150,180)
yield2 <- c(161.7,187.1,188.5,196.6,196.0,196.5...
2009 Nov 10
3
HEEELP!!!!
...ymbol is not in the keyboard, so I select it from spetial
characters,
and then i selected with shift an <>key, and still, it doesn?t works
I attached th file with the data. i hope you can help me!!!!!
Ana.
-------------- next part --------------
FERTIL YIELD YIELDM VARIETY SEX DBH FLOWERS YIELD2
1 6.27 25.12 1 2 174 234 6.27
1 5.36 17.25 1 1 171 110 5.36
1 6.39 26.42 1 2 212 512 6.39
1 4.85 16.08 1 1 187 133 4.85
1 5.99 22.15 1 2 227 1107 5.99
1 7.14 15.92 1 1 274 624 7.14
1 5.08 40.25 2 2 86 8 5.08
1 4.07 35.25 2 2 161 333 4.07
1 4.35 31.98 2 1 285 637 4.35
1 4.95 36.52 2 1 182 225 4.95
2...