Hi,

Thanks for realizing my mistakes
Sorry for the typo mistakes, first i m storing the array then doing the
operations. But that is not my issue, i m suppose to fill the area of plot
wherever a2>a3 . May be through polygon it would be tough to complete .
Looking for some hep through ggplot2

2011/11/19 Uwe Ligges <ligges@statistik.tu-dortmund.de>

>
>
> On 18.11.2011 23:48, avinash barnwal wrote:
>
>> Hi,
>>
>> I am looking forward to fill the plot using conditions on variables a2 and
>> a3. Whenever variable(a2) goes above variable(a3) i fill it with some
>> color
>> .
>>
>> I am storing the coordinates of a2 and a3 in x and y as well as time where
>> it is occurring . But it is not producing properly. I must be wrong
>> in assigning  coordinates.
>> What should be the correct way to produce the desired plot?
>>
>> Thanks in advance
>> ##############################**##############################**
>> ##############################**############
>> x<-vector()
>> y<-vector()
>> temp_time<-vector()
>>
>
> Defining *empty* vectors is almost never what you really want to do.
>
>  for(i in 1:length)
>>
>
> Running a loop 1:length is dangerous if a length is < 1, run it
> seq_along(.).
>
>
>  {
>> if(a2[i]>a3[i])
>> {
>> j<-j+1
>> x[j]<-a2[i]
>> y[j]<-a3[j]
>>
>
> You meant a3[i], I guess.
>
>  temp_time<-time[i]
>> }
>> }
>>
>
> At the end of this loop, this obviously simplifies to:
>
> l <- a2 > a3
> x <- a2[l]
> y <- a3[l]
> temp_time <- time[length]
>
>
>
>  time<-q[,1]
>> a2<-q[,3]
>> a3<-q[,4]
>> plot(time,a2type='l',col='red'**,ylab='',xlab=" ",axes=FALSE)
>> lines(time,a3,col='blue',ylab=**'',xlab=" ")
>> polygon(c(time[1:j],time[1:j])**,c(x,y),col="grey")
>>
>
> Since you don't use anything from inside your loop here, why do you run
> that at all? Is this homework?
>
> Uwe Ligges
>



-- 
Avinash Barnwal
Final year undergraduate student
Statistics and informatics
Department of Mathematics
IIT Kharagpur

	[[alternative HTML version deleted]]

