cheat-sheets | Learning library

One major difference between the two options is the number of tasks. You can do len(thing.dask) to get a quick look at the graph needed to compute a given dask object, delayed or bag.

Since the world hasn't yet appointed a Lord High Commissioner of Grammar Formalisms, there is no definitive syntax. You're certainly free to use the ISO "Extended BNF" standard, particularly if you're writing some other ISO standard, but don't expect it to be implemented by a parser generator, even one which extends normal BNF. (There's no definitive standard for BNF, either.)

I have no way of knowing what was going on in the minds of the authors of the ISO standard, but I suspect that their expectations were realistic: it's intended to allow precise description of syntaxes for standards documents, but there are many features which are not suitable for automated implementation (including a way of writing rule restrictions in English to be used when the formalism isn't sufficiently general). It's often possible to automatically extract (most of) a grammar from an ISO standard, but the task is neither simple nor -- as far as I can see -- intended to be simple, since most ISO standards are not distributed as plain text documents and extracting formatted text from either PDF or HTML formats presents its own challenges.

The options you present for punctuation are most of the common ones, although mathematicians often write BNF using ⇒ to separate left- and right-hand sides. (Unfortunately, most keyboards lack that useful character.)

I'm personally not fond of the ::= separator, although it is used by various parser generators. It seems to me to be way too much typing for a simple punctuator, and it is also annoyingly difficult to align with alternatives flagged with |. But to each their own.

If you are able to successfully navigate to the dashboard in a separate tab then copy that same address into the text field in the dask labextension and things should be ok.

dplyr::filter only keeps rows for which the provided condition is true. Your thinking was correct that a simple way to do this is to make a conditional statement that matches the row you want to remove, and then invert it to select the other rows. The problem is the way inverting == to != interacts with the AND operator &

You give the condition participant != "1" & trial != "2" & page != "2" which is true only if ALL the following conditions are true (since you used &):

• participant is not 1
• trial is not 2
• page is not 2

So if a row doesn't meet ANY of those criteria (for example, every row where participant == 1), it will be removed

Since you want to do is make a conditional statement that matches the rows you want to remove, and then invert it by using the NOT operator ! around the entire statement in parentheses:

To you first question, the short answer is: No

The Nzsql is a command-shell for Netezza that enables the execution of sql and lets you run other Pre-build commands against the appliance. Aginity is a GUI on top of the appliance with many of the same capabilities and more, but accessed through a mouse and some menus. You can say that command-shells are the predecessors of GUI clients, but they still play a great part in automation. That being said, just do a ‘select * from _v_database’ as a replacement of \l

To your second question the answer is No as well, but you are fully compensated by the external table syntax: https://www.ibm.com/support/knowledgecenter/en/SSULQD_7.2.1/com.ibm.nz.load.doc/c_load_transient_external_tables.html

In order to bind a key to this, you need to know what command to use in the key binding. The easiest way to determine that would be to select View > Show Console from the menu to open the console, then enter sublime.log_commands(True) to turn on command logging, and execute the command that you want to bind.

In this case, that would be View > Hide Tabs (or View > Show Tabs, depending on if they're visible or not), which allows us to see this in the console:

you can use the regex