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r_workshop5 [2018/11/14 16:28] katherinehebert [for loop] |
r_workshop5 [2018/11/14 16:29] katherinehebert [for loop] |
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| </code> | </code> | ||
| - | Tip1. To loop over the number of rows of a data frame, we can use the function ''nrow()'' | + | **Tip 1.** To loop over the number of rows of a data frame, we can use the function ''nrow()'' |
| <code rsplus> | <code rsplus> | ||
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| </code> | </code> | ||
| - | Tip2. If we want to perform operations on the elements of one column, we can directly iterate over it | + | **Tip 2.** If we want to perform operations on the elements of one column, we can directly iterate over it |
| <code rsplus> | <code rsplus> | ||
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| </code> | </code> | ||
| - | The expression within the loop can be almost anything and is usually a compound statement containing many commands. | + | **Tip 3.** The expression within the loop can be almost anything and is usually a compound statement containing many commands. |
| <code rsplus> | <code rsplus> | ||
