R help - Feb 2021 - Need help using lattice

I have a dataframe comprising a vector of E. coli concentrations, a vector of
months when the samples were taken, and a vector of sampled sites.  I?d like to
produce a lattice with sites along the horizontal axis, and months on the
vertical.  Each site-month box would then contain concentrations ranging along
its x axis.



I think this would use dotchart (or possibly stripchart) in the lattice.  I?ve
been reading the lattice and xyplot documents and I?m overwhelmed.  I?d
appreciate help in how to write the call.



David


	[[alternative HTML version deleted]]

Hi

Please do not use HTML formating.
Please provide some toy data if you want to get reasonable help.

You could also look at ggplot package, e.g.

https://ggplot2.tidyverse.org/reference/facet_grid.html

Cheers
Petr
> -----Original Message-----
> From: R-help <r-help-bounces at r-project.org> On Behalf Of
Parkhurst, David
> F.
> Sent: Sunday, February 7, 2021 8:02 PM
> To: r-help at r-project.org
> Subject: [R] Need help using lattice
> 
> I have a dataframe comprising a vector of E. coli concentrations, a vector
of
> months when the samples were taken, and a vector of sampled sites.  I?d
> like to produce a lattice with sites along the horizontal axis, and months
on
> the vertical.  Each site-month box would then contain concentrations
ranging
> along its x axis.
> 
> 
> 
> I think this would use dotchart (or possibly stripchart) in the lattice. 
I?ve
> been reading the lattice and xyplot documents and I?m overwhelmed.  I?d
> appreciate help in how to write the call.
> 
> 
> 
> David
> 
> 
> 	[[alternative HTML version deleted]]