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How to get min/max of two integers in Postgres/SQL?
...(or minimum) of two integers in Postgres/SQL? One of the integers is not a column value.
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dplyr: “Error in n(): function should not be called directly”
I am attempting to reproduce one of the examples in the dplyr package but am getting this error message. I am expecting to see a new column n produced with the frequency of each combination. What am I missing? I triple checked that the package is loaded.
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Is SQL or even TSQL Turing Complete?
This came up at the office today. I have no plans of doing such a thing, but theoretically could you write a compiler in SQL? At first glance it appears to me to be turing complete, though extremely cumbersome for many classes of problems.
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Does Qt support virtual pure slots?
My GUI project in Qt has a lot of "configuration pages" classes which all inherit directly from QWidget .
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Where do gems install?
I'm trying to edit one of the gem's config files and I can't find it. I'm not sure how I did this in the past.
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Argmax of numpy array returning non-flat indices
I'm trying to get the indices of the maximum element in a Numpy array.
This can be done using numpy.argmax . My problem is, that I would like to find the biggest element in the whole array and get the indices of that.
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ruby convert array into function arguments
Say I have an array. I wish to pass the array to a function. The function, however, expects two arguments. Is there a way to on the fly convert the array into 2 arguments?
For example:
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How to generate random SHA1 hash to use as ID in node.js?
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Xcode stops working after set “xcode-select -switch”
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getMonth in javascript gives previous month
I am using a datepicker which gives a date in the format Sun Jul 7 00:00:00 EDT 2013.
Even though the month says July, if I do a getMonth, it gives me the previous month.
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