[R] How can I create a loop for this? Please help me

Ivy Pieters icwpieter@ @ending from gm@il@com
Fri Oct 5 16:30:05 CEST 2018

Hey there,
I am very much a newbie in the R world. I have to work with R for my internship. I really hope that someone can help me out here, since it costs me ages to run and adjust the same script over and over again. 

I have a SpatialPointsDataFrame table (sent2field2 using data) that I would like to split into different SpatialPointsDataFrame tables. The first table needs to consist out of [1:13] columns, the second table needs to consist of [,c(1,14:25)] the third needs to consist of [,c(1,26:37)]. The name of the tables need to be Sent2Field2_1, Sent2Field2_2, Sent2Field2_3, etc etc… So only 1,2,3,4 etc need to change within the name. This loop needs to go on until there are no columns left anymore in the dataset. Then the next step needs to add coordinates to the table (see script below). The name of the tables need to be Sent2F2_1, Sent2F2_2, Sent2F2_3, etc etc… So only 1,2,3,4 etc need to change within the name. The last step projects the table with the added coordinates into a SpatialPointsDataFrame. See the script below: (up to now I am adjusting the names manually and running it time after time, i am getting crazy, but I really don’t know how to make a loop) For now the separate steps are working fine. I really hope someone can help me out. Looking forward to anyones reply. Thank you already in advance. 

Sent2Field2_1<-Sent2Field2 using data[,1:13]
coordinates(Sent2F2_1) <- ~long+lat

Sent2Field2_2<-Sent2Field2 using data[,c(1,14:25)]
coordinates(Sent2F2_2) <- ~long+lat

Sent2Field2_3<-Sent2Field2 using data[,c(1,26:37)]
coordinates(Sent2F2_3) <- ~long+lat

Sent2Field2_4<-Sent2Field2 using data[,c(1,38:49)]
coordinates(Sent2F2_4) <- ~long+lat

Sent2Field2_5<-Sent2Field2 using data[,c(1,50:61)]
coordinates(Sent2F2_5) <- ~long+lat


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