Differences
This shows you the differences between two versions of the page.
Both sides previous revision Previous revision | |||
spatialspecial [2019/04/15 16:57] qcbs [Exercice 5] |
spatialspecial [2019/04/15 16:58] (current) qcbs [Exercice 7] |
||
---|---|---|---|
Line 314: | Line 314: | ||
#data2=tapply(Layer$new_area,Layer$IHO_Sea,mean) | #data2=tapply(Layer$new_area,Layer$IHO_Sea,mean) | ||
library('dplyr') | library('dplyr') | ||
- | library('sf') | ||
Layer=data.frame(Layer) | Layer=data.frame(Layer) | ||
data2=Layer%>%group_by(IHO_Sea)%>%summarize(mean=mean(new_area)) | data2=Layer%>%group_by(IHO_Sea)%>%summarize(mean=mean(new_area)) |