A data frame with 434 observations on the following 29 variables.
POSa factor indicating the survey location: POS1 (town centre) or POS2 (shopping centre)
timea numeric vector containing the code for the time period the interview was conducted
datea POSIXct containing the date the interview was conducted
POS_traffica numeric vector containing the code for the traffic mode the respondet used to come to the supply location
POS_staya numeric vector containing the respondents' duration of stay at the supply location
POS_expena numeric vector containing the respondents' expenditures at the supply location
POS1_freqa numeric vector containing the frequency of visiting the supply location POS1
POS2_freqa numeric vector containing the frequency of visiting the supply location POS2
gro_purchase_codea factor containing the destination of the last grocery shopping trip
gro_purchase_branda factor containing the brand (store chain) of the destination of the last grocery shopping trip
gro_purchase_channela factor containing the shopping channel of the destination of the last grocery shopping trip: ambulant, online and store
gro_purchase_expena numeric vector containing the expenditures corresponding to the last grocery shopping trip
cloth_purchase_codea factor containing the destination of the last clothing shopping trip
cloth_purchase_branda factor containing the brand (store chain) of the destination of the last clothing shopping trip
cloth_purchase_channela factor containing the shopping channel of the destination of the last clothing shopping trip: mail order, online or store
cloth_purchase_expena numeric vector containing the expenditures corresponding to the last clothing shopping trip
ce_purchase_codea factor containing the destination of the last shopping trip with respect to consumer electronics (CE)
ce_purchase_branda factor containing the brand (store chain) of the destination of the last CE shopping trip
ce_purchase_channela factor containing the shopping channel of the destination of the last CE shopping trip: online or store
ce_purchase_expena numeric vector containing the expenditures corresponding to the last CE shopping trip
resid_PLZa factor containing the customer origin (place of residence) as ZIP code
resid_namea factor containing the customer origin (place of residence) as name of the corresponding city or city district
resid_name_officiala factor containing the customer origin (place of residence) as official names of the corresponding city or city district
resid_codea factor containing the customer origin (place of residence) as internal code
age_cata numeric vector containing the age category of the respondent
sexa numeric vector containing the sex of the respondent
weekdaya numeric vector containing the weekday where the interview took place
holidaya numeric vector containing a dummy variable which indicates whether the interview was conducted on a holiday or not
surveya factor reflecting the mode of survey: main is the main survey while pretest marks the cases from the pretest