search for: my_data_fram

...head=TRUE) my_data=0 num.rows=length(mydata[,1]) num.cols=965+805+1 my_data=matrix(0,nr=num.rows,nc=num.cols) for(i in 1:num.rows) { nb=mydata[i,2] np=mydata[i,3] my_data[i,nb]=1 my_data[i,965+np]=1 my_data[i,1+1770]=mydata[i,1] } #convert matrix to data.frame # convert to data frame my_data_frame<-as.data.frame(my_data) #check data frame headers head(my_data_frame) #load dataframe into mldata with choice variable mldata<-mlogit.data(my_data_frame, varying=NULL, choice="V1771", shape="wide") #V1771 = dependent var #V1-V965 = variable 1 dummies #V966-V1700 = vari...