So the opposite expression of [ab] (match either a or b) is [^ab] (match neither a nor b). But the more complex your expression gets, the more complex is the complementary expression too. An example: You want to match the literal foo. An expression, that does match anything else but a string that contains foo would have to match either

The not operator (logical negation). Probably the best way is using the operator not: >>> value = True >>> not value False >>> value = False >>> not value True

Sorry just getting into Pandas, this seems like it should be a very straight forward question. How can I use the isin('X') to remove rows that are in the list X? In R I would write !which(a %in% b).

May 28, 2010 · It just felt right to add this as an answer. I guess the reason why there is no such thing in C# is because, unlike the coalescing operator (which is only valid for reference types), the reverse operation could yield either a reference or value type (i.e. class x with member int y - therefore it would unfortunately be unusable in many situations.

Apr 11, 2011 · The opposite of Intersect() Ask Question Asked 13 years, 11 months ago. Modified 5 years, 6 months ago.

Jul 13, 2013 · The opposite of visibility: hidden is visibility: visible. Similarly, is there any opposite for display: none? Many people become confused figuring out how to show an element when it has display: none, since it's not as clear as using the visibility property.

Apr 13, 2011 · There is no opposite method of event.preventDefault() to understand why you first have to look into what event.preventDefault() does when you call it. Underneath the hood, the functionality for preventDefault is essentially calling a return false which halts any …

Nov 11, 2022 · The opposite of an INNER JOIN is an OUTER JOIN and it comes in two flavors: LEFT and RIGHT depending on which side of of the JOIN you want to "outer" – Paul Sasik Commented Oct 28, 2010 at 16:23

Dec 4, 2008 · The ^ (Caret - or Ascii Circumflex), produced by pressing shift + 6, does not appear to have an Ascii opposite, namely an Ascii Inverted Circumflex. But for your alternative character pairing that also have keyboard combinations, you could use: ˆ (Circumflex) shift + alt + i and ˇ (Caron) shift + alt + t. Source: fileformat.info

Aug 6, 2010 · If you consider an inner join as the rows of two tables that meet a certain condition, then the opposite would be the rows in either table that don't. For example the following would select all people with addresses in the address table: SELECT p.PersonName, a.Address FROM people p JOIN addresses a ON p.addressId = a.addressId