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Which of the following is valid syntax for if else statement in R?

Which of the following is valid syntax for if else statement in R? Correct Answer

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The height of a tree is defined as the number of edges on the longest path in the tree. The function shown in the pseudocode below is invoked as height(root) to compute the height of a binary tree rooted at the tree pointer root. int height (treeptr n) { if (n == NULL) return -1;   if (n →  left == NULL)        if (n →  right == NULL) return 0;        else return ; \(\boxed{B1}\);     // Box 1 else { h1 = height (n →  left);          if (n → right == NULL) return (1+h1);          else { h2 = height (n → right);          return ; \(\boxed{B2}\)   // Box 2                        }            } } The appropriate expressions for the two boxes B1 and B2 are
Consider the following statements.
1. All valid arguments have only true premises.
2. A sound argument must be valid.
3. An argument with a false conclusion can't be valid.
4. All arguments with true conclusion are valid.
Which of the following statements is/are correct?
Consider the following statements
1. All valid arguments have only true premises.
2. A sound argument must be valid.
3. An argument with a false conclusion cannot be valid.
4. All arguments with true conclusion are valid.
Which of the statements given above is/are correct?
Propositions are
1. Gift made during marz-ul-maut to a heir is valid without the consent of other heirs under Sunnite law
2. Gift made during marz-ul-maut to a heir is valid without the consent of other heirs under Ithna Ashari law
3. Gift made during marz-ul-maut to a heir is valid only with the consent of other heirs, under Sunnite law
4. Gift made during marz-ul-maut to a heir is valid only with the consent of other heirs under the Shia law.
Which amongst the following is correct
In an election, three candidates are participating. 25% voters didn’t cast their votes and  6.66% of the total votes are invalid. C got 2450 valid votes which is 40% more than the valid votes got by B. If A got only 40% of the total valid votes, then find the individual valid votes of A, B and C respectively.
In an election two candidates are contesting. 30 percent of the valid votes were in favour of the losing candidate whereas the winning candidate got 50 percent of the valid votes and rest of the valid votes were considered as illegal. The winning candidate won by 4500 votes. Calculate the total number of voters if 90 percent of the total votes are considered valid.
What does the "else" statement in an "if-else" statement block indicate?
Find out the correct statement(s) from the following:
(1) A void marriage remains valid until a decree annulling it has been passed by a competent Court.
(2) A void marriage is never a valid marriage and there is no necessary of a decree annulling it.
(3) A voidable marriage is regarded as a valid subsisting marriage until a decree annulling it has been passed by a competent Court.
The following program is to be tested for statement coverage: begin       if (a ==b) {S1; exit;}       else if (c == d) {S2;}        else {S3; exit;}      S4; end The test cases T1, T2, T3 and T4 given below are expressed in terms of the properties satisfied by the values of variables a, b, c and d. The exact values are not given. T1 : a, b, c and d are all equal T2 : a, b, c and d are all distinct T3 : a=b and c !=d T4 : a !=b and c=d Which of the test suites given below ensures coverage of statements S1, S2, S3 and S4?
What is the purpose of the 'else' statement in C's 'if-else' control structure?