How to resolve the algorithm Compare a list of strings step by step in the R programming language
How to resolve the algorithm Compare a list of strings step by step in the R programming language
Table of Contents
Problem Statement
Given a list of arbitrarily many strings, show how to:
Each of those two tests should result in a single true or false value, which could be used as the condition of an if statement or similar. If the input list has less than two elements, the tests should always return true. There is no need to provide a complete program and output. Assume that the strings are already stored in an array/list/sequence/tuple variable (whatever is most idiomatic) with the name strings, and just show the expressions for performing those two tests on it (plus of course any includes and custom functions etc. that it needs), with as little distractions as possible. Try to write your solution in a way that does not modify the original list, but if it does then please add a note to make that clear to readers. If you need further guidance/clarification, see #Perl and #Python for solutions that use implicit short-circuiting loops, and #Raku for a solution that gets away with simply using a built-in language feature.
Let's start with the solution:
Step by Step solution about How to resolve the algorithm Compare a list of strings step by step in the R programming language
Source code in the r programming language
all(strings == strings[1])
all(strings == sort(strings))
manyStrings=list(
"a",
c("a", "b", "c"),
c("a", "c", "b"),
c("A", "A"),
c("a", "A"),
c(123, "A", "Aaron", "beryllium", "z"),
c(123, "A", "z", "Aaron", "beryllium", "z")
)
for (strings in manyStrings) {
print(strings)
print(all(strings == strings[1]))
print(all(strings == sort(strings)))
}
"a"
TRUE
TRUE
"a" "b" "c"
FALSE
TRUE
"a" "c" "b"
FALSE
FALSE
"A" "A"
TRUE
TRUE
"a" "A"
FALSE
TRUE
"123" "A" "Aaron" "beryllium" "z"
FALSE
TRUE
"123" "A" "z" "Aaron" "beryllium" "z"
FALSE
FALSE
You may also check:How to resolve the algorithm Special characters step by step in the Mathematica/Wolfram Language programming language
You may also check:How to resolve the algorithm Roman numerals/Encode step by step in the Zoea programming language
You may also check:How to resolve the algorithm Fibonacci word/fractal step by step in the Icon and Unicon programming language
You may also check:How to resolve the algorithm Stack traces step by step in the Clojure programming language
You may also check:How to resolve the algorithm Terminal control/Cursor positioning step by step in the Scala programming language