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Grouping functions (tapply, by, aggregate) and the *apply family
...so you will end up with either the exact expected output or an informative error. On the other hand, sapply will try to simplify the output following rules that aren't always obvious, and fall back to a list otherwise. For instance, try to predict the type of output this will produce: sapply(list(1:...
Generate 'n' unique random numbers within a range [duplicate]
... k is larger than len(population), you need to be prepared to catch a ValueError:
>>> try:
... random.sample(range(1, 2), 3)
... except ValueError:
... print('Sample size exceeded population size.')
...
Sample size exceeded population size
...
How can I record a Video in my Android App.?
...his is a great example. I had some trouble getting it to work at first. My error was related to file output size of 0 bytes. I started debugging and the culprit turned out to be record.prepare(). I was not setting a new outputfile for the recorder so it was overwriting my existing video every time I...
Where can I find my Facebook application id and secret key?
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After Use this App Id my application i am getting error like "You are not logged in".
– SANDEEP
Dec 19 '16 at 9:34
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What are App Domains in Facebook Apps?
...nds the user to "www.supposedlymaliciouswebsite.com/PAGE_HERE", then a 191 error is thrown saying that this wasn't part of the app domains you listed in your Facebook application settings.
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Manipulating an Access database from Java without ODBC
...class was stuck with this issue believing it to be a file system privilege error. Helped me loads and it took a surprising amount of digging to realize Oracle done away with the JDBC-ODBC bridge from Java 8.
– wilbomc
Jan 22 '15 at 1:23
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Convert array to JSON
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I decided to use the json2 library and I got an error about “cyclic data structures”.
I got it solved by telling json2 how to convert my complex object. Not only it works now but also I have included only the fields I need. Here is how I did it:
OBJ.prototype.toJSON ...
Escape Character in SQL Server
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@MichaelMunsey try it for yourself: select ' returns the error Unclosed quotation mark after the character string ''. Nowhere in my answer do I use " only two ', not sure why mine is the only answer with down votes.
– Seph
Aug 19 '15 at 12:23
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How to get a float result by dividing two integer values using T-SQL?
...understand that CASTing to FLOAT is not allowed in MySQL and will raise an error when you attempt to CAST(1 AS float) as stated at MySQL dev.
The workaround to this is a simple one. Just do
(1 + 0.0)
Then use ROUND to achieve a specific number of decimal places like
ROUND((1+0.0)/(2+0.0), 3)
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How to get access to HTTP header information in Spring MVC REST controller?
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Should mention, you'll get a 400 bad request error as a response in case if request will not contain such header. More flexible way is direct access to request headers as described in: stackoverflow.com/a/28209710/1828296
– lospejos
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