General Rweb interface

Example 1

First example, using the ade4 library and showing how to do a coinertia analysis :

Example 2

Here is the example showing how you can search sequence data banks for gene sequences, compute the codon frequences for these genes, and perform a correspondence analysis (CA) of the frequencies table. This example makes the CA of the codon frequencies in the coding sequences of Mycoplasma genitalium. The web page explaining this example is here.

Example 3

Here is a code example showing how an external data set can be used. You must use one of the three data entry methods to provide data table X, and the PCA of this table will be computed.

External Data Entry
Paste a dataframe here :

Temp Flow  pH Cond Oxyg Bdo5 Oxyd  Ammo  Nitr Phos
sp_1   10   41 8.5  295  110  2.3  1.4  0.12  3.40 0.11
sp_2   11  158 8.3  315   13  7.6  3.3  2.85  2.70 1.50
sp_3   11  198 8.5  290  113  3.3  1.5  0.40  4.00 0.10
sp_4   12  280 8.6  290  126  3.5  1.5  0.45  4.00 0.73
sp_5   13  322 8.5  285  117  3.6  1.6  0.48  4.60 0.84
sp_6   11  303 8.5  245  100  1.7  0.9  0.05  2.70 0.16
su_1   13   62 8.3  325   95  2.3  1.8  0.11  3.00 0.13
su_2   13   80 7.6  380   20 21.0  5.7  9.80  0.80 3.65
su_3   15  100 7.8  385   46 15.0  2.5  7.90  7.70 4.50
su_4   16  140 8.0  360   76 12.0  2.6  4.90  8.40 3.45
su_5   15  160 8.4  345   91  1.7  1.9  0.22 10.00 1.74
su_6   13  310 8.2  285   82  8.5  1.6  0.59  3.70 0.60
au_1    1   25 8.4  315   91  1.6  0.5  0.07  6.40 0.03
au_2    3   63 8.0  425   38 36.0  8.0 12.50  2.20 6.50
au_3    2   79 8.1  350   84  7.1  1.9  2.70 13.20 3.70
au_4    3   85 8.3  330  106  2.0  1.4  0.42 12.00 1.60
au_5    2   72 8.6  305   91  1.6  0.9  0.10  9.50 1.25
au_6    4  181 8.6  270  105  2.8  0.5  0.10  3.66 0.43
wi_1    3  118 8.0  325  100  1.6  1.2  0.17  1.80 0.19
wi_2    3  252 8.3  360  100  9.5  2.9  2.52  4.60 1.60
wi_3    3  315 8.3  370  100  8.7  2.8  2.80  4.80 2.85
wi_4    3  498 8.3  330  100  4.8  1.6  1.04  4.40 0.82
wi_5    2  390 8.2  330  100  1.7  1.2  0.56  5.00 0.60
wi_6    3  480 8.2  290  100  1.3  0.8  0.04  2.20 0.13

Or enter a dataset URL :
Or select a local file to submit:

Example 4

If you don't know how to program in R, here is a short code snippet that shows you a little bit about what R can do.

Home Page <www.math.montana.edu/~umsfjban>

Email <jeff@math.montana.edu>

Last Modified: 11-Feb-2004