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Suppose you have a for loop like so
for(n in 1:5) { #if(n=3) # skip 3rd iteration and go to next iteration cat(n) } How would one skip to the next iteration if a certain condition is met?
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Figure 2: for-loop with break Function. As shown in Figure 2, the loop stops (or “breaks”) when our running index i is equal to the value 4. For that reason, R returns only three sentences.
A next statement is useful when we want to skip the current iteration of a loop without terminating it. On encountering next, the R parser skips further evaluation and starts next iteration of the loop. The syntax of next statement is: if (test_condition) { next }
As we can see from the output, the loop terminates when it encounters the break statement. A next statement is useful when we want to skip the current iteration of a loop without terminating it. On encountering next, the R parser skips further evaluation and starts next iteration of the loop.
In R, an if-else statement tells the program to run one block of code if the conditional statement is TRUE, and a different block of code if it is FALSE. Here’s a visual representation of how this works, both in flowchart form and in terms of the R syntax:
for(n in 1:5) { if(n==3) next # skip 3rd iteration and go to next iteration cat(n) } If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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