Useful tips for everyday
What does the contrast command in Stata do? Stata can perform contrasts involving categorical variables and their interactions after almost any estimation command. contrast can…
Why is my extension not working on Magento 2.0? For example, a lot of extensions made for M 2.1 may be not working for 2.0.…
What does OSS in Telecom mean? operations support system An operations support system (OSS) is a software component that enables a service provider to monitor,…
Should you close iOS apps? The official line from Apple is you shouldn’t bother closing an app down unless the app has frozen. Apple said:…
How do I count the number of rows in multiple tables? To achieve this for multiple tables, use the UNION ALL. select sum(variableName. aliasName) from…
How are custom annotations implemented in Java? To create a new custom annotation and start using it in your automation test cases, please follow the…
How do you use K means clustering for customer segmentation? K Means Clustering Algorithm Specify number of clusters K. Initialize centroids by first shuffling the…
What is the difference between a table constraint and an assertion? The difference between the two is that CHECK CONSTRAINTS are, in a sense, much…
What is a unipolar scale? Unipolar or Five-point Likert Scale Also known as the five-point scale, this is a more commonly used Likert scale. Unipolar…
Do you train an algorithm or a model? The simple answer is — when you train an “algorithm” with data it will become a “model”.…