Using mapply to create sequence objects in R/TraMineR? -

i running code below generate list of traminer sequence objects. dataset can found [here][1].

library(traminer) sequences <- read.csv(file = "event-stream-20-l-m.csv", header = true, nrows=10) repo_names = colnames(sequences)  # 1. loop across , define 24 sequence objects & store them in sequence_objects colpicks <- seq(10,240,by=10) sequence_objects <- mapply(function(start,stop) seqdef(sequences[,start:stop]),                            colpicks - 9, colpicks) 

however, if run:

test <- sequence_objects[1] seqdist(test, indel=1, with.missing=false, norm="maxdist") 

the error message receive is:

error:  [!] data not state sequence object, use 'seqdef' function create 1 

how can mapply using seqdef not create list of sequence objects?

mapply default simplifies return value.

as per comment in previous question, try including simplify=false in mapply call.