R check if a list of TRUE/FALSE values evaluate to TRUE
list, predicate, r, vector
Solution
Maybe try the `all` function:
> x <- c(rep(TRUE, 5), FALSE)
> y <- c(rep(TRUE, 6))
> all(x)
[1] FALSE
> all(y)
[1] TRUE
As its name says, it checks if all the values are TRUE.
Problem
I am relatively new to R so sorry if this is basics. I have this loop that have a condition inside that compares between 2 lists and return a vector of TRUE/FALSE values. What I really need to check is if this vector includes ONLY TRUE values (meaning the 2 lists are identical) ``` for ( i in 1:(length(sessions_items_list)-1)){ if (sessions_items_list[[i]]==sessions_items_list[[i+1]]){ identical_sessions_df [i,1] <- names(sessions_items_list[i]) identical_sessions_df [i,2] <- names(sessions_items_list[i+1]) #identical_sessions_df [i,3] <- sessions_items_list[[i]] #identical_sessions_df [i,4] <- sessions_items_list[[i+1]] } } ``` Here is some data: ``` > sessions_items_list[[2]] [1] "111502665618" "111505397996" "121238758674" "121480200508" "131159477858" "161469302097" "161474935929" "171526802604" "231197187139" "231381216285" "251502101205" "261650031415" [13] "261652085962" "261652452940" "271538491767" "281398254987" "291227243345" "311065441334" "321561638226" "321566237993" "331042848072" "331251405185" "331366646532" "361096154736" [25] "381043841996" > sessions_items_list[[3]] [1] "111502665618" "111505397996" "121238758674" "131159477858" "161469302097" "161474935929" "171526802604" "231197187139" "231381216285" "251502101205" "261647474153" "261650031415" [13] "261652085962" "261652452940" "271538491767" "281398254987" "291227243345" "311065441334" "321561638226" "321566237993" "331042848072" "331251405185" "331366646532" "361096154736" [25] "381043841996" ``` Here is the condition result example: ``` > sessions_items_list[[2]]==sessions_items_list[[3]] [1] TRUE TRUE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE TRUE TRUE TRUE TRUE TRUE TRUE TRUE TRUE TRUE TRUE TRUE TRUE TRUE TRUE ``` Is there a simple function to check of this list of predicates evaluate to TRUE (all values are TRUE)?