Changes in new version

Version agricolae 1-2.1 (August 25, 2014)
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1. Move packages from Suggests to Imports
2. AUDPS. The Area Under the Disease Progress Stairs.
3. AMMI stability value (ASV) and Yield stability index (YSI)
4. Design youden
5. Now the PBIB.test function uses missing values.

Version agricolae 1-2.0 (June 30, 2014)
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1. AMMI: aditional parameters PC=FALSE or TRUE, output principal components, check error equal cero.
2. plot.AMMI: graphic aditional parameters lwd = 1.8, length = 0.1 to arrow function 
3. simulation.model: aditional parameter console=FALSE or TRUE, output in console
4. resampling.model: aditional parameter console=FALSE or TRUE, output in console
5. stability.par: aditional parameter console=FALSE or TRUE, output in console
6. stability.nonpar: aditional parameter console=FALSE or TRUE, output in console

Version agricolae 1-1.9 (June 17, 2014)
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1. PBIB new parameter: group=TRUE
PBIB.test(block,trt,replication,y,k, method=c("REML","ML","VC"), 
test = c("lsd","tukey"), alpha=0.05, console=FALSE, group=TRUE)
when you have many treatments to use group=FALSE.
2. design.rcbd(..., continue=FALSE) 
continue=TRUE or FALSE, continuous numbering of plot.
3. Median.test. New function for multiple comparisons of treatments with Median.
4. Now, AMMI function checks the minimum number of environments and genotypes.
Now use console=TRUE or FALSE to output in screen. the graphs are produced by 
the plot function.
5. plot.AMMI() or plot() functions generate plot of the AMMI with others principal components.
type=1 (biplot), type=2 (triplot) and type=3 (influence genotype)
6. Changed parameters by default "first = TRUE" in designs: rcbd, ab, split and lsd.
7. Now vignettes in agricolae.
8. change name ogive.freq by ojiva.freq, the parameters are same.
9. AUDPC the evaluation parameter  now can be numeric vector. To see help(audpc)  

Version agricolae 1-1.8 (February 21, 2014)
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* zigzag(outdesign)
The new function applied to designs: rcbd, lsd, graeco, split, strip, ab, alpha, bib, cyclic,
lattice, dau. The outdesign is the output book the function design.###().
The function zigzag change the order number plots in serpentine form.
# Randomized complete design.
trt<-LETTERS[1:5]
outdesign<-design.rcbd(trt,r=4, serie=2)
book<-outdesign$book
> t(matrix(book[,1],5))
     [,1] [,2] [,3] [,4] [,5]
[1,]  101  102  103  104  105
[2,]  201  202  203  204  205
[3,]  301  302  303  304  305
[4,]  401  402  403  404  405
fieldbook <- zigzag(outdesign)
> t(matrix(fieldbook[,1],5))
     [,1] [,2] [,3] [,4] [,5]
[1,]  101  102  103  104  105
[2,]  205  204  203  202  201
[3,]  301  302  303  304  305
[4,]  405  404  403  402  401

* Now, all design functions have two output objects: parameters and book, the parameters contain initial values that will allow reproduce the design and book contain field book.
* The alpha and lattice designs have additionally two objects: statistics and 
field sketches. 
* BIB have the statistics with parameters and field book.
* Cyclic have the stetches with parameters and field book.


