Displaying 3 results from an estimated 3 matches for "irea".
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2011 Aug 23
1
histogram with mean for every break
...to produce a histogram where for every breaks there are the mean of the data.
I tried tu use the function >hist(x, break=20 ... ) but this return the numerosity for every breaks, not the mean.
Any hint?
Thanks in advance,
francesco
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Francesco Nutini
CNR-IREA
Ist. per il Rilevamento Elettromagnetico dell'Ambiente
Via Bassini 15, 20133 Milano (Italy)
Tel: +39-02 23699 297
http://www.irea.cnr.it
nutini.f@irea.cnr.it
Skype: uitko@hotmail.it
Univ. mail: francesco.nutini@unimi.it
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2009 Mar 31
1
help about: anova and population no normal
Dear R-Helpers,
Parametric statistics are statistics where the population is assumed to fit any
parametrized distributions (most typically the normal distribution).
My problem is:
1) if my polulation is no normal
2) if the sample data of all replications and treatments were well fitted from
the Weibull distribution (shape and scale parameters).
Can be The shape and scale parameters compared
2011 May 20
5
regression coefficient for different factors
Dear R-helpers,
In my dataset I have two continuous variable (A and B) and one factor.
I'm investigating the regression between the two variables usign the command
lm(A ~ B, ...)
but now I want to know the regression coefficient (r2) of A vs. B for every factors.
I know that I can obtain this information with excel, but the factor have 68 levels...maybe [r] have a useful command.
Thanks,