Displaying 4 results from an estimated 4 matches for "m_d".
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2013 Mar 02
3
if value is in vector, perform this function
...=seq(1,60, by=0.5) #all time values, experiment ran for 60 days
#feeding sequence - every "3.5 days"
feed_days = seq(1,60,by=3.5)
Daphnia <- function(t,x,params){
C_D = x[2];
C_A = 0;
for(t %in% feed_days){
if t == TRUE {
C_A = 1.5
}
else{
C_A = 0
}}
gamma = params[1]; m_D = params[2]; K_q = params[3]; q_max = params[4];
M_D = m_D * C_D
I_A = (C_D * q_max * C_A) / (K_q + C_A)
r_D = gamma * I_A
return(
list(c(
- I_A,
r_D - M_D
)))
}
library(deSolve)
results <- ode(init, t, Daphnia, params, method = "lsoda")
Let me know if there's any othe...
2008 Aug 11
1
Logistic regression on aggregate data
Hi,
I want to run a logistic regression on summary data and I was not able to
find the adequate R function to do so. The data is summarized daily and
instead of the binary y_t I have n_d and m_d, where is the number of
instances in which a choice could have been made and m_d is the number of
instances in which the choice was made. The other characteristics have been
averaged throughout the day.
sample file:
impression clicks pos
5049 1 16.68251
4983 1 16.75457
4908 1 16.76956
5093 0 16.70...
2011 Jul 27
1
Converting F-value from ANOVA to cohen's d in meta-analysis (metafor-package)
Dear R-experts!
Running a meta-analysis (using the magnificent metafor-package), I use
cohen's d as a main outcome measure in a random-effects model.
For most of the samples cohen's d is derived form a comparison of two groups
(A & B). However some studies report results from an ANOVA (one-factor with
three levels: C,D,E) whereas two groups (C,D) correspond to one group in the
other
2006 Oct 03
1
HP Toolbox kills Samba
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