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How to get the last N rows of a pandas DataFrame?

...dataframe df1 and df2 (df1 is vanila dataframe, df2 is indexed by 'STK_ID' & 'RPT_Date') : 3 Answers ...
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HTML5 Canvas 100% Width Height of Viewport?

I am trying to create a canvas element that takes up 100% of the width and height of the viewport. 7 Answers ...
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Styling HTML email for Gmail

...veloper! For reference, you can check the official gmail CSS docs. As a side note, Gmail was the only major client that didn't support style (reference, until they update anyway). That means you can almost safely stop putting styles inline. Some of the more obscure clients may still need them. ...
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Two sets of parentheses after function call

...lowing way: let add = (x) => (y) => x + y; – guido Nov 19 '15 at 8:14 2 ...
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What exactly is OAuth (Open Authorization)?

...tly is OAuth (Open Authorization)? OAuth allows notifying a resource provider (e.g. Facebook) that the resource owner (e.g. you) grants permission to a third-party (e.g. a Facebook Application) access to their information (e.g. the list of your friends). If you read it stated as plainly, I would ...
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Ensure that HttpConfiguration.EnsureInitialized()

... Thank you. That's been a thorn in my side. – Robert Bolton Mar 7 '18 at 18:30 add a comment  |  ...
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Why were pandas merges in python faster than data.table merges in R in 2012?

... merge in mind. Two aspects to that: i) multi column ordered keys such as (id,datetime) ii) fast prevailing join (roll=TRUE) a.k.a. last observation carried forward. I'll need some time to confirm as it's the first I've seen of the comparison to data.table as presented. UPDATE from data.table v1...
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MongoDB: How to update multiple documents with a single command?

... didn't worked db.userActivity.find({ 'appId' : 1234, 'status' : 1}).update({ $set: { 'status': 1 } }); 2017-06-05T17:47:10.038+0530 E QUERY [thread1] TypeError: db.userActivity.find(...).update is not a function : ...
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NSLog an object's memory address in overridden description method

I am overriding an object's description method. I need to know how to print the object's memory address to replace {???} in the code below: ...
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Targeting only Firefox with CSS

...s as of Firefox 59, released March 2018: bugzilla.mozilla.org/show_bug.cgi?id=1035091 – Jordan Gray Dec 17 '19 at 17:16  |  show 8 more commen...