[R] warning message while plotting taylor diagram

[yssp03]

Dear all
I am new to R and not know much about it.
However through googling I am able to plot taylor diagram.

Here is the message from R
*> taylor.diagram(obs,M3,pos.cor=FALSE,add=FALSE,pcex=1,col="darkgreen")
Warning messages:
1: sd(<data.frame>) is deprecated.
 Use sapply(*, sd) instead. 
2: sd(<data.frame>) is deprecated.
 Use sapply(*, sd) instead. 
3: mean(<data.frame>) is deprecated.
 Use colMeans() or sapply(*, mean) instead. 
4: mean(<data.frame>) is deprecated.
 Use colMeans() or sapply(*, mean) instead. 
5: mean(<data.frame>) is deprecated.
 Use colMeans() or sapply(*, mean) instead. 
6: mean(<data.frame>) is deprecated.
 Use colMeans() or sapply(*, mean) instead.*

I am worried about these warning messages.will this effect my taylor diagram
or they are just warnings.

Thanking you in anticipation



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