[R] Illustrating kernel distribution in wheat ears

[Carl-Göran CG. Pettersson]

Dear all

R2.10  WinXP

I have a dataset dealing with the way different wheat cultivars build their yield.
Wheat ears are organised in spikelets where the spikelets can be numbered from the bottom, with even numbers on one side and odd on the other.
I know how many kernels there were in each spikelet after some months spent counting them...

Now I want to illustrate the differences between the cultivars in how the kernels are distributed in the ears.
In the best of all possible worlds it would be possible to place histograms or boxplots on adjecent sides of vertical lines representing different cultivars.
I have done some experimenting using boxplot() but I am stuck and out of ideas right now.

All ideas are welcome!
/CG


Here is a sample dataset with the countings of kernels for the first 14 spikelets:

cn      spl01   spl02   spl03   spl04   spl05   spl06   spl07   spl08   spl09   spl10   spl11   spl12   spl13   spl14
Lans    1.8     3.1     3.5     3.8     3.8     4.1     4.2     4.3     4.4     4.5     4.2     4.1     3.9     3.8
Kranich 0.6     2.4     3.4     4.2     4.5     4.7     4.9     4.9     4.8     4.7     4.4     4.1     4.1     3.9
Loyal   1.1     2.7     3.6     3.7     4.1     4.4     4.4     4.6     4.3     4.5     4.3     4.1     3.8     3.7
Boomer  NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA
Oakley  NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA
Hereford        0.6     2.3     3.3     3.6     3.9     4       4.2     4.1     4.1     3.9     3.9     3.6     3.4     3.2
Kranich 0.3     2.5     3.6     4       4.4     4.5     4.3     4.8     4.7     4.6     4.4     4.3     4.1     4
Oakley  0.5     2.1     3.2     3.4     3.8     4.4     4.3     4.3     4.3     4.2     4.2     3.9     3.8     3.6
Loyal   1.6     3.3     3.9     4.2     4.3     4.4     4.4     4.6     4.6     4.5     4.3     4.3     4.2     4
Hereford        NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA
Oakley  0.5     2.1     3.2     3.6     4       4       4.1     4.4     4.4     4.2     4.1     3.8     3.8     4
Kranich NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA
Lans    1.4     3       3.3     3.8     3.9     4.3     4       4.3     4.3     4.3     4       4.1     4       4
Hereford        1.2     2.7     3.6     3.8     4       4       4.1     4.2     4.1     4.1     3.9     3.6     3.8     3.3
Boomer  0.3     2.5     3.1     3.8     3.9     4.4     4.1     4.2     4.3     4       4.2     4       3.8     3.7
Lans    NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA
Boomer  0.2     1.9     3       3.4     3.7     3.9     3.9     4       4       4       3.8     3.8     3.6     3.4
Loyal   NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA
Boomer  NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA
Kranich NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA
Kranich 0.3     1.1     2.9     3.5     3.9     4.3     4.4     4.4     4       4.2     4.2     4       3.9     3.8
Hereford        0.5     2.1     3.1     3.6     3.7     3.9     4       3.8     4       3.8     3.6     3.6     3.1     3
Loyal   NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA
Boomer  0.3     0.8     2.8     3       3.6     3.7     3.8     4       3.8     3.5     3.3     3.2     3.2     2.9
Oakley  0.5     2.7     3.4     3.8     4       3.9     4.2     4.5     4.3     4.4     4       4       3.9     3.9
Loyal   0.9     2.6     3.6     3.8     3.8     4.4     4.2     4.4     4.2     3.9     3.8     4       3.4     3.7
Oakley  NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA
Hereford        0.7     2.9     3.6     4       4       3.9     4       4       4       3.9     3.8     3.7     3       3
Hereford        NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA
Loyal   0.7     2.3     3.5     3.7     3.9     3.8     4.2     4.1     4.1     4.1     4       4       3.4     3.6
Boomer  0.7     2       3.3     3.5     3.9     3.7     4       3.9     3.8     4       3.7     3.8     3.5     3.4
Lans    NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA      NA
Lans    1.9     3       3.7     3.8     3.9     4       3.9     4.3     4.1     4.1     4.1     3.8     3.8     3.9
Lans    1.1     2.6     3.3     3.7     4.1     4       4.2     4.2     4.2     4       4.1     4.1     3.8     3.6
Kranich 0.5     1.3     2.9     3.8     3.8     4.3     4.3     4.4     4.4     4       4.3     3.9     3.6     3.4
Oakley  0.1     2       3.1     3.5     4.1     3.9     4.1     4.2     4.2     4.2     4.1     4       3.9     3.8