Displaying 6 results from an estimated 6 matches for "samtani".
2010 Dec 15
5
Solution to differential equation
Hello,
I am trying to find the analytical solution to this differential equation
dR/dt = k1*(R^k2)*(1-(R/Rmax)); R(0) = Ro
k1 and k2 are parameters that need to fitted, while Ro and Rmax are the
baseline and max value (which can be fitted or fixed). The response (R)
increases
initially at an exponential rate governed by the rate constants k1 and k2.
Response has a S-shaped curve as a function
2010 Apr 08
1
Placing the ≥ symbol in the Trellis custom strip
Hello,
I am trying to use ≥ symbol in the Trellis custom strip. The ascii ALT Key
for this symbol is 242. However, when I try "\242 90 kg" I get the ¢ symbol
in the trellis custom strip. Can some one kindly help me?
Thanking you in advance,
MNS
[[alternative HTML version deleted]]
2010 Jul 16
1
Toggle between the various pages for multi-page figures
Hello,
I am a new R user having transitioned over from S-plus recently. I have a
question that is probably very trivial but I am having trouble finding a
solution. In S-plus, graphic pages are created as tabs when multi-page
figures are created. I have shown the R code for xpose.VPC (a function
within library xpose4 for R) where I want the figure from each Strata (STRT)
to displayed on a
2010 Jun 30
1
Solution to differential equation for nls function
Hello,
I am trying to find the analytical solution to this differential equation
dR/dt = k1*R (1-(R/Rmax)^k2); R(0) = Ro
k1, k2, and Rmax are parameters that need to fitted, while Ro is the
baseline value (which can be fitted or fixed). The response (R) increases
initially at an exponential rate governed by the rate constant k1.
Response has a S-shaped curve as a function of time and it
2013 Sep 26
1
Less than equal to symbol in ggplot2 legend text
Hello,
I am trying to add a less than equal to symbol in a ggplot2 legend text.
See sample code below. I have tried using the expression function and
\u2264. I also tried adding labels to legend.text under theme.
Neither of these 3 options work.
Please help,
Mahesh
++++++++++++++
Extra.column=ifelse(data[,covariate]>cutpoint,1,0)
Grp1 <- "\u2264 1.5"
Grp2 <-
2011 Jan 02
1
How to compute the density of a variable that follows a proportional error distribution
Hello,
I am trying to compute the density of a variable k that is either (1)
Normally distributed; (2) Log-Normally distributed; or (3) follows
proportional error distribution. I tried to search R-help and the answer for
normal distribution was easy to find (please see 1c). I am not sure if my
formula for dlnorm is correct (please see 2c below)? I really don't know
what function to use for the