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Check if table exists and if it doesn't exist, create it in SQL Server 2008
...d and which do not. This is extremely valuable and for scripts that run to setup and update an operational database when there are multiple of the same database running on the same instance, this is the key! Great information.
– Nelda.techspiress
Dec 29 '17 at ...
Random row selection in Pandas dataframe
...n integer random_state, equivalent to using np.ramdom.seed. So, instead of setting, for example, np.random.seed = 0, you can:
df = df.sample(n=k, random_state=0)
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xcopy file, rename, suppress “Does xxx specify a file name…” message
This seems pretty simple and maybe I'm just overlooking the proper flag , but how would I, in one command, copy a file from one directory to another and rename it in the destination directory? Here's my command:
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Sample random rows in dataframe
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Remember to set your seed (e.g. set.seed(42) ) every time you want to reproduce that specific sample.
– CousinCocaine
Apr 10 '14 at 8:47
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How to refer to relative paths of resources when working with a code repository
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If you are using setup tools or distribute (a setup.py install) then the "right" way to access these packaged resources seem to be using package_resources.
In your case the example would be
import pkg_resources
my_data = pkg_resources.resou...
How to use ng-repeat without an html element
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The important point: for tags used for ng-repeat-start and ng-repeat-end set ng-if="0", to let not be inserted in the page. In this way the inner content will be handled exactly as it is in knockoutjs (using commands in <!--...-->), and there will be no garbage.
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Matplotlib different size subplots
... I like subplots better than gridspec as you don't have to deal with settings up the list for the axis anymore (with gridspec you still need to make the axis and the plots one by one). So subplots is cleaner and faster to use indeed
– Eelco van Vliet
Mar ...
Undo changes in entity framework entities
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Query ChangeTracker of DbContext for dirty items. Set deleted items state to unchanged and added items to detached. For modified items, use original values and set current values of the entry. Finally set state of modified entry to unchanged:
public void RollBack()
{
va...
How can I profile Python code line-by-line?
...decorator I wrote: gist.github.com/kylegibson/6583590. If you're running nosetests, be sure to use the -s option so stdout is printed immediately.
– Kyle Gibson
Sep 16 '13 at 17:14
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Rails 4 multiple image or file upload using carrierwave
How can I upload multiple images from a file selection window using Rails 4 and CarrierWave? I have a post_controller and post_attachments model. How can I do this?
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