Useful tips for everyday
How do you compensate for missing data? Seven Ways to Make up Data: Common Methods to Imputing Missing Data Mean imputation. Substitution. Hot deck imputation.…
What is DirectX and GDI? * GDI is one of the core window subsystems and is used for drawing Windows, bitmaps, and some graphic images.…
Which is the correct equation for propeller efficiency? The equation for efficiency has other useful forms. Rearranging the terms, the equation for the thrust produced…
Where can I find the USGS earthquake data? The data obtained from active source studies are archived at IRIS and/or at the National Geophysical Data…
What can hackers do with an open port? Malicious (“black hat”) hackers (or crackers) commonly use port scanning software to find which ports are “open”…
What is the difference between highest and lowest count? The range is the difference between the highest and lowest value in a set of values.…
How do I change the color of a bar in Matlab? Try this: x = randi(10, [1,15])-5. xAxis = .5:length(x) hb=bar(xAxis, x, ‘BarWidth’, 0.95); set(hb,’FaceColor’,…
How do you summarize multiple columns in Excel? Sum multiple columns based on single criteria with an awesome feature Select Lookup and sum matched value(s)…
What is cumulative update for SQL Server? Cumulative updates Each new CU contains all the fixes that were included with the previous CU for the…
How do I use ModelBuilder in ArcGIS? Follow the steps below to see how this works. On the ArcMap menu, select Geoprocessing > Geoprocessing Options.…