Indian Political Action Committee Data Analyst Interview Questions and Answers

k-Means clustering is a popular unsupervised machine learning algorithm used for grouping similar data points together.

• It is used for clustering similar data points together based on their similarity.

• The algorithm works by iteratively assigning data points to clusters and updating the cluster centroids.

• The number of clusters is determined by the value of k.

• It is widely used in image segmentation, customer segmentation,...read more

Vlookup is simpler but Index Match is more flexible and efficient.

• Vlookup searches for a value in the leftmost column of a table and returns a corresponding value from a specified column.

• Index Match uses the Index function to find the position of a value in a table and the Match function to return the corresponding value from another column.

• Index Match is more flexible as it can search for values in any column and can ...read more