YouTipR Func Mapply
# R mapply() Function - Multivariate Application
[ R Language Examples](https://example.com/r/r-examples.html)
R mapply() function is a multivariate version of sapply(), which can apply a function to multiple lists/vectors simultaneously.
When you need to process multiple arguments element by element, mapply() can replace nested loops.
The syntax of mapply() function is as follows:
mapply(FUN, ..., MoreArgs = NULL, SIMPLIFY = TRUE)
**Parameter Description:**
* **FUN** The function to apply.
* **...** Multiple parameters to pass to FUN (list or vector).
* **MoreArgs** A list of fixed parameters (not involved in element-wise iteration).
## Example
# Generate sequence using mapply
result <-mapply(seq, from =c(1, 10, 100),
to =c(3, 15, 105))
print("Generated sequence:")
print(result)
# Process multiple parameters element by element
names<-c("Zhang San", "Li Si", "Wang Wu")
math <-c(88, 92, 76)
english <-c(90, 88, 82)
# Calculate total score for each student
total <-mapply(function(n, m, e){
paste(n, "Total:", m + e)
}, names, math, english)
print("Each person's total:")
print(total)
Executing the above code outputs the following result:
"Generated sequence:"[] 1 2 3[] 10 11 12 13 14 15[] 100 101 102 103 104 105 "Each person's total:" "Zhang San Total: 178" "Li Si Total: 180" "Wang Wu Total: 158"
[ R Language Examples](https://example.com/r/r-examples.html)