Hello,
my question may be very simle, but I don't find any answer so I would like to ask, I have two different .txt files, which is:
idx_DGG_land.txt (1229504 obs., 1variable) & isea4h9.txt (2621450obs., 5 variables)
I succesfully import the files, but my next step is get the index of DGG over land in the isea grid
here it is my code as far:
#covers the land surfaces but also on the ocean surfaces
isea4h9<- read.table("C:/.../isea4h9.txt", quote=""", comment.char="")
#the indexes of points only on land surfaces
idx_DGG_Land<- read.table("C:/.../idx_DGG_land.txt", quote=""", comment.char="")
DGG_land<-isea4h9(idx_DGG_land,: )
And I get an error that says that isea4h9 is not a function
As data frame can not work because has different rows. How can I get only DGG over land are needed??
Thank you in advance,
Varvara