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Implement your own version of the Nadaraya–Watson estimator in R and compare it with nw. Focus...

Implement your own version of the Nadaraya–Watson estimator in R and compare it with nw. Focus only on the normal kernel and reduce the accuracy of the final computation up to 1e-7 to achieve better efficiency. Are you able to improve the speed of nw? Use the microbenchmark::microbenchmark function to measure the running times for a sample with n = 10000 .

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