Final answer:
To assign the variable 'nummatches' with the number of elements in 'uservalues' that equal 'matchvalue', you need to iterate through each element in 'uservalues' using a loop.
Step-by-step explanation:
To assign the variable 'nummatches' with the number of elements in 'uservalues' that equal 'matchvalue', you can use a loop to iterate through each element in the 'uservalues' array. Inside the loop, you can check if the element is equal to 'matchvalue', and if it is, increment the 'nummatches' variable. Finally, 'nummatches' will hold the number of elements in 'uservalues' that equal 'matchvalue'.