Hello I have a question. I made an r-script and did a few commands needed to make some new variables. They all work out well, and when I run the commands, the new variables appear in the dataset. I can also work with these new variables to make other new variables from them. Also, when I use summary(dataset), those new variables appear in the summary of the dataset. But, when I do summary(new variable) => error: variable not found. For example: summary(couple_id) => Error in summary(couple_id) : object 'couple_id' not found. What can I do about this?
R-script: attach(ipumsi_00008_dta) library(tinytex) library(dplyr) library(ggplot2) library(tidyr) library(knitr) library(forcats) library(mice) library(pander) library(ggcorrplot) library(lubridate) # true/false code when sploc is greater than zero and sprule is equal to 1 or 2 ipumsi_00008_dta <- mutate(ipumsi_00008_dta, rule_union = sploc>0 & (sprule==1 | sprule==2)) ## creating numeric code for rule_union & rule_unionn: 1 when sploc is greater than zero and sprule is equal to 1 or 2, 0 if not. ## This is neccesary because otherwise it is a logical code and we cannot multiply with it, which is needed ipumsi_00008_dta <- ipumsi_00008_dta %>% mutate(rule_union_numeric = as.numeric(rule_union)) ### creating unique numeric code for sploc / pernum variables ipumsi_00008_dta <- mutate(ipumsi_00008_dta, sploc_pernum_code = pernum*(sex==1) + sploc*(sex==2)) #### dividing serial by 1000, otherwise, the ultimate couple_id is too large, and it works in this dataset because the serials start at 1000 (I will have to check if this works for other datasets) ipumsi_00008_dta <- mutate(ipumsi_00008_dta, serial_divided = serial%/%1000) ##### creating unique union identifier ipumsi_00008_dta$union_id = paste0(ipumsi_00008_dta$country, ipumsi_00008_dta$year, ipumsi_00008_dta$serial_divided, ipumsi_00008_dta$sploc_pernum_code) ipumsi_00008_dta <- ipumsi_00008_dta %>% mutate(union_id_numeric = as.numeric(union_id)) ipumsi_00008_dta <- mutate(ipumsi_00008_dta, couple_id = union_id_numeric*rule_union_numeric) ###### Understanding the couple_id variable summary(couple_id) summary(ipumsi_00008_dta) I also attached my dataset. Thank you very much for the answer! Hannah Van Impe ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.