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How to avoid the “divide by zero” error in SQL?
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This seemed to be the best fix for my situation when trying to address dividing by zero, which does happen in my data.
Suppose you want to calculate the male–female ratios for various school clubs, but you discover that the following query fails and issues ...
Understanding FFT output
... are negative while the magnitude of the frequency itself is positive (see my answer to question 1). I suggest that you read up on complex numbers. Explaining how they work (and why they are useful) exceeds what is possible to explain in a single stackoverflow-question.
Note: You may also want to ...
Adding System.Web.Script reference in class library
I am currently moving code from my app_code folder to a class library. I have tagged several methods with [System.Web.Script.Serialization.ScriptIgnore] attributes. My class library cannot see this namespace. My add references dialog cannot see this namespace. How do I properly use this tag fr...
Git: cannot checkout branch - error: pathspec '…' did not match any file(s) known to git
...l "master" somehow, so although "git fetch" got me closer, I had to delete my local master first ("git branch -d master"), before switching to the remote master ("git checkout master"). In case that helps anyone else who is as silly as me!
– Jamie Brown
Oct 23...
How to find the largest file in a directory and its subdirectories?
...ursively if they're normal files, sorts by the 7th field (which is size in my find output; check yours), and shows just the first file.
find . -type f -ls | sort +7 | head -1
The first option to find is the start path for the recursive search. A -type of f searches for normal files. Note that i...
Is it possible dynamically to add String to String.xml in Android?
...g formatted string where the gray parts are inserted programmatically.
My sister Mary is 12 years old.
string.xml
<string name="my_xml_string">My sister %1$s is %2$d years old.</string>
MyActivity.java
String myString = "Mary";
int myInt = 12;
String formatted = getString(R.str...
CSS vertical alignment text inside li
... Great solution - I set the li 'line height' to be the same as my min-height, and the text is vertically aligned - at least close enough for a visual inspection. The 'table' solution above is certainly not semantic, and is hackish in nature. Any time we are doing that, we are increasing ...
“Large data” work flows using pandas
...wer to this question for many months while learning pandas. I use SAS for my day-to-day work and it is great for it's out-of-core support. However, SAS is horrible as a piece of software for numerous other reasons.
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How to get CRON to call in the correct PATHs
...ault PATH set in /etc/crontab as shown by @chrissygormley, and also set in my (Ubuntu) crontab, is different from the path in /etc/environment, specifically it puts /sbin and /bin ahead of /usr/sbin and /usr/bin. I have now changed this in my /etc/crontab to make it the same as the user environment....
How can I post data as form data instead of a request payload?
...t you to parametrizing your data object for $http service calls; i.e. with my solution you can simply continue to pass actual data objects to $http.post(), etc. and still achieve the desired result.
Also, the top rated answer relies on the inclusion of full jQuery in the page for the $.param() func...