Displaying 7 results from an estimated 7 matches for "nrate".
Did you mean:
rate
2004 Mar 17
0
NLS question:Quadratic plus plateau fit
...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)
yield <- c(163.4,178.1,179.6,178.2,184.4,184.5)
data.1 <- data.frame(nrate = nrate, yield = yield)
plot(data.1)
qp.nls.fit<- nls(yield ~ (b0 + b1*nrate + b2*I(nrate^2))*(nrate <= x0)
+ (b...
2004 Nov 23
2
Quadratic curve on a loop
...version
_
platform i386-pc-mingw32
arch i386
os mingw32
system i386, mingw32
status
major 2
minor 0.1
year 2004
month 11
day 15
language R
###################################################################
# some data
site <- c(1,1,1,1,1,1,2,2,2,2,2,2)
nrate <- c(0,60,90,120,150,180,0,60,90,120,150,180)
yield <-
c(161.7,187.1,188.5,196.6,196.0,196.5,160.7,186.1,189.5,194.6,195.0,198.5)
site <- as.factor(site)
# file name
fname <- levels(site)
i <- nchar(fname) == 1
fname[i] <- paste("0", fname[i], sep = "")
fname...
2013 Jan 12
2
Getting the R squared value in asymptotic regression model
Please help getting the R squared value in asymptotic regression model
I use the code below
model1<-nls(GN1~SSasymp (nrate,a,b,c), data = data.1 )
and R produced the modell coefficients without the R squared value?
--
Ahmed M. Attia
Research Assistant
Dept. Of Soil&Crop Sciences
Texas A&M University
ahmed <ahmedatia@zu.edu.eg>.attia@ag.tamu.edu
Cell phone: 001-979-248-5215
[[alternative HTML vers...
2013 Jan 14
1
Fwd: Help with nonlinear regression
...below is the equation of the model (Reference the R book page 662)*
y = a - b e^-cx when I compensate x with 50 for instance, I get a very high
value does not match the graph produced by the same model (Asymptotic
regression model).
below is the output analysis from R;
Formula: GN1 ~ SSasymp(nrate, a, b, c)
Parameters:
Estimate Std. Error t value Pr(>|t|)
a 12.8190 0.4407 29.09 8.92e-05 ***
b 5.7249 0.2803 20.42 0.000257 ***
c -4.6697 0.1703 -27.41 0.000107 ***
---
Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
Residual standard error: 0.2874 on...
2018 May 21
5
Looking for better fax handling
...calstationid)=${sender_num})
same => n,SendFax(${faxfile},d)
same => n,Set(STATUS=Status: ${FAXOPT(status)})
same => n,Set(STATUS=${STATUS}\nRemote ID: ${FAXOPT(remotestationid)})
same => n,Set(STATUS=${STATUS}\nMaxrate: ${FAXOPT(maxrate)})
same => n,Set(STATUS=${STATUS}\nMinrate: ${FAXOPT(minrate)})
same => n,Set(STATUS=${STATUS}\nECM: ${FAXOPT(ecm)})
same => n,Set(STATUS=${STATUS}\nnumber of pages: ${FAXOPT(pages)})
same => n,Set(STATUS=${STATUS}\nRate: ${FAXOPT(rate)})
same => n,Set(STATUS=${STATUS}\nResolution: ${FAXOPT(resolution)})
same => n,G...
2020 Oct 17
10
[RFC] treewide: cleanup unreachable breaks
...r;
return scnprintf(str, PRIV_STR_SIZE,
"size=%u\naddr=0x%X\n", buff->size,
buff->addr);
}
- break;
case OID_TYPE_BSS:{
struct obj_bss *bss = r->ptr;
return scnprintf(str, PRIV_STR_SIZE,
"age=%u\nchannel=%u\n"
"capinfo=0x%X\nrates=0x%X\n"
"basic_rates=0x%X\n", bss->age,
bss->channel, bss->capinfo,
bss->rates, bss->basic_rates);
}
- break;
case OID_TYPE_BSSLIST:{
struct obj_bsslist *list = r->ptr;
int i, k;
k = scnprintf(str, PRIV_STR_SIZE, "nr=%u\n&qu...
2020 Oct 17
10
[RFC] treewide: cleanup unreachable breaks
...r;
return scnprintf(str, PRIV_STR_SIZE,
"size=%u\naddr=0x%X\n", buff->size,
buff->addr);
}
- break;
case OID_TYPE_BSS:{
struct obj_bss *bss = r->ptr;
return scnprintf(str, PRIV_STR_SIZE,
"age=%u\nchannel=%u\n"
"capinfo=0x%X\nrates=0x%X\n"
"basic_rates=0x%X\n", bss->age,
bss->channel, bss->capinfo,
bss->rates, bss->basic_rates);
}
- break;
case OID_TYPE_BSSLIST:{
struct obj_bsslist *list = r->ptr;
int i, k;
k = scnprintf(str, PRIV_STR_SIZE, "nr=%u\n&qu...