Displaying 2 results from an estimated 2 matches for "od600".
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d600
2011 Jun 09
0
Help creating a scatterplot with errorbars using gplot
I am having a problem creating a scatterplot with error bars using gplot.
This is only my second day using R so I am very much a newbie.
My x-values (OD600) are:
0.00400000 0.01866667 0.04733333 0.08733333 0.22466667 0.42400000 0.82066667 1.39233333 1.61100000
My y-values (cellconc) are:
2e+06 5e+06 1e+07 2e+07 5e+07 1e+08 2e+08 5e+08 1e+09
And my standard deviations (stdev) are:
0.001154701 0.003000000 0.002081666 0.009865766 0.015716234 0.04025...
2004 Aug 25
3
Beginners Question: Make nlm work
Hello,
I'm new to this and am trying to teach myself some R by plotting
biological data. The growth curve in question is supposed to be fitted
to the Verhulst equation, which may be transcribed as follows:
f(x)=a/(1+((a-0.008)/0.008)*exp(-(b*x)))
- for a known population density (0.008) at t(0).
I am trying to rework the example from "An Introduction to R" (p. 72)
for my case and