[R] Help for boxplot

[adamshun]

Hi guys, 

I am doing a project to evaluate the 7 individual fund performance from a
portfolio compared with all fund performance utilizing the same strategy.

Lets say in total there are 10 strategies and in the portfolio there exist 5
strategies.

First, i use the BOXPLOT() and SUBSET() to produce the box plot of all the 5
funds performance individually: 

#identify funds in strategies within the portfolio
filteredFunds = subset(allfunds,Strategy %in% portStrats);

#create box plot
boxplot(NetReturn~Strategy,data=filteredFunds,horizontal=TRUE)

Though it produced these 5 box plot, while the Y-aix has all the 10 strategy
labels. 
*So the FIRST QUESTION is how to eliminate the other 5 strategies on the
Y-aix? *

Next, I used the POINTS() to plot the performance of specific funds in the
related box plot, which are from the portfolio. 
and used TEXTXY() to label its name. 

#label portfolio funds

for(i in 1:T){
#loop through all strategies 

#get strategy	
	strat = portStrats[i];

#identify all funds of that strategy
	idx = allFundStrats == strat;
	
#get returns of the all funds	
	rets = allFundRets[idx];
	
#identify portfolio funds of the same strategy

	portidx = fundStrats == strat;	
#get returns and names
	frets = fundrets[portidx];
	fnames = fundNames[portidx];
	
	N = length(frets);

#now figure out where to put the labels	
	s = 1 / N;
		for (j in 1:N){
			yy = j * s + i*2;
			points(x=frets[j],y=yy,col="red");
			textxy(X=frets[j]*-1,Y=yy,labs=fnames[j]);	
		}
		
}

*The ERROR is Error in xy.coords(x, y) : 'x' and 'y' lengths differ*
I think its because of the number of X&Y differs. 

Can you guy help me to fix it?

Thank you so much.

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