Write A Program To Calculate Tajima Estimator In R

Tajima’s estimator is a statistical measure used to estimate the effective population size from genetic data. Calculating Tajima’s estimator in R is crucial for understanding genetic diversity and evolutionary history.

1. Enter the mean, standard deviation, and sample size of your genetic data.
2. Click ‘Calculate’.
3. View the results and chart below.

The formula for Tajima’s estimator (D) is:

D = (∑(xi – μ)² / n – 1) / (s² * (n – 1) / (n – 2))

where xi is the frequency of the ith allele, μ is the mean allele frequency, n is the sample size, and s² is the variance of allele frequencies.

Comparison of Tajima’s Estimator in Different Species

Species	Mean	SD	Sample Size	Tajima’s Estimator

• Ensure your data is from a randomly mating population.
• Consider using a bootstrap approach for more accurate estimates.
• Interpret results with caution, as Tajima’s estimator can be sensitive to demographic changes.

What is Tajima’s estimator used for?

Tajima’s estimator is used to estimate the effective population size from genetic data, providing insights into genetic diversity and evolutionary history.

Learn more about Tajima’s estimator

Read the original paper by Tajima