Useful tips for everyday
Does adding a column lock the table? Adding a column to a table will no longer require table locks except possibly brief exclusive locks at…
What is ground plane in microstrip? In microstrip antennas and printed monopole antennas an area of copper foil on the opposite side of a printed…
Are there sets in Golang? As you may know, there is no native implementation of sets in Go. A set is a data structure that…
How to use method lasso in Cox model using glmnet? I have the survival data includes 252 patients, 25 independent variables and 35 events. I…
How to get a covariance matrix for a multivariate normal? So for multivariate normals, either can be done in a fairly straightforward manner: With first…
When to use an index or primary key? Because they are unique and not null, these values (or value if your primary key is a…
How do you calculate solar energy usage? Divide your average hourly wattage requirement by the number of daily peak sunlight hours for your area. This…
What is the range of values used to estimate the parameter? interval estimate interval estimate: A range of values used to estimate a population parameter.…
How do I see history on iPhone 6? Viewing History in Safari on an iPhone 6 Open the Safari browser. Tap the book icon at…
How do I fix network capability is turned off? Go to the Start Menu and select Control Panel. Click the Network and Internet category and…