...] # Excludes every 3rd row starting from 0 df2 = df[df.index % 3 == 0] # Selects every 3rd raw starting from 0 This arithmetic based sampling has the ability to enable even more complex row-selections. This assumes, of course, that you have an index column of ordered, consecutive, integers star...

...n both usages should work, as per nose.readthedocs.io/en/latest/usage.html#selecting-tests. Your failure could be caused by tests not being a module in your setup? – michaeljoseph Mar 13 '17 at 10:04 ...

... this technique! It doesn't create a new instance for every element in the selector like you think you're doing, instead it creates only a single instance attached to the selector itself. View my answer for a solution. – Kevin Jurkowski Apr 10 '14 at 1:14 ...

... Make sure you have the correct Configuration selected in the dropdown at the top of the Property pages, i.e. the same configuration as the one you are trying to run. – Steve Smith Jan 4 '18 at 14:51 ...

...e want to unwind to Red from Green when the button is pressed: You must select the action which is defined in the view controller you want to unwind to: You can also unwind to Red from Blue (which is "two steps away" in the navigation stack). The key is selecting the correct unwind action. Be...

...edge might be out of date on this one, but to address both: Use dpkg --set-selections. Assuming nullidentd was the package you wanted to stay put, run as root echo 'nullidentd hold' | dpkg --set-selections Alternately, since you are building from source, you can use an epoch to set the version n...

...e this: Person 1 requests a code review. Person 2 adds comments and selects "Needs Work." Person 1 makes the necessary changes. Person 1 Updates the shelveset associated with the code review Person 1 adds comments to continue the discussion Repeat steps 2 - 5 until accepted H...

... If you add a selector to children, you can also check if an element has children that match a particular selector, like if you want to see if an element has a child of a particular class. – Muhd May ...

I have panel which I colored blue if this panel is being selected (clicked on it). Additionally, I add a small sign ( .png image) to that panel, which indicates that the selected panel has been already selected before. ...

...states "Hoare suggested partitioning around the median of several randomly selected lines. Sedgewick [...] recommended choosing the median of the first [...] last [...] and middle". This indicates that both techniques for 'median-of-three' are known in the literature. (Update 2014-11-23: The articl...