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what is the most efficient way of counting occurrences in pandas?
...g values. (Compare with size.)
In any case, value_counts has been specifically optimized to handle object type, like your words, so I doubt you'll do much better than that.
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How to round the minute of a datetime object
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This does not work at all for me for long periods. e.g. roundTime(datetime.datetime(2012,12,31,23,44,59,1234),roundTo=60*60*24*7) vs roundTime(datetime.datetime(2012,12,30,23,44,59,1234),roundTo=60*60*24*7)
– CPBL
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Why is an MD5 hash created by Python different from one created using echo and md5sum in the shell?
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echo appends a \n since you usually do not want lines not ending with a linebreak in your shell (it looks really ugly if the prompt does not start at the very left).
Use the -n argument to omit the trailing linebreak and it will print the same checksum as ...
Date format Mapping to JSON Jackson
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Tried all these solutions but was not able to store a Date variable of my POJO into a Map key value, also as Date. I want this to then instantiate a BasicDbObject (MongoDB API) from the Map, and consequently store the variable in ...
MySQL show status - active or total connections?
...W STATUS WHERE `variable_name` = 'Threads_connected';
This will show you all the open connections.
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td widths, not working?
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inline css is a bad idea unless you really only need it in one place. also, td width has been depreciated for some time. see answer below
– kristina childs
Jun 18 '12 at 20:46
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How to pass an object into a state using UI-router?
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Actually for passing objects this is quite a nice hack :)
– Tek
Nov 1 '14 at 19:25
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How to add 10 days to current time in Rails
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Generally, it's best to use Time.zone.now in place of Time.now.
– x-yuri
Aug 8 '18 at 20:44
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Avoiding instanceof in Java
...is entry from Steve Yegge's Amazon blog: "when polymorphism fails". Essentially he's addressing cases like this, when polymorphism causes more trouble than it solves.
The issue is that to use polymorphism you have to make the logic of "handle" part of each 'switching' class - i.e. Integer etc. in ...
Boolean.hashCode()
...ite objects it's common to add the hash codes for the components. If too small values are used in a hash set with a large number of buckets there's a risk of ending up with an uneven distribution of objects.
Do collisions matter? Booleans just have two different values anyway?
Maps can contain bool...