Use concat_ws(string delimiter, array<string>) function to concatenate array: select actor, concat_ws(‘,’,collect_set(date)) as grpdate from actor_table group by actor; If the date field is not string, then convert it to string: concat_ws(‘,’,collect_set(cast(date as string))) Read also this answer about alternative ways if you already have an array (of int) and do not want to explode it … Read more
I believe numpy.column_stack should do what you want. Example: >>> a = np.array((0, 1)) >>> b = np.array((2, 1)) >>> c = np.array((-1, -1)) >>> numpy.column_stack((a,b,c)) array([[ 0, 2, -1], [ 1, 1, -1]]) It is essentially equal to >>> numpy.vstack((a,b,c)).T though. As it says in the documentation.
The curly braces mean concatenation, from most significant bit (MSB) on the left down to the least significant bit (LSB) on the right. You are creating a 32-bit bus (result) whose 16 most significant bits consist of 16 copies of bit 15 (the MSB) of the a bus, and whose 16 least significant bits consist … Read more
For strings you can just write “abc” * 3, which works via StringOps and uses a StringBuffer behind the scenes. For characters I think your solution is pretty reasonable, although char.toString * n is arguably clearer. Do you have any reason to suspect the List.fill version isn’t efficient enough for your needs? You could write … Read more
Unfortunately this answer is probably of little or no help whatsoever, but I did a forensics analysis of the Java Lambda Mailing list to see if I could find the cause of this design. This is what I found out. In the beginning there was an instance method for Stream.concat(Stream) In the mailing list I … Read more
Do not call the Module the same as the function, it can sometimes make things confusing for VBA. Rename the module something like “DatabaseUtils” for instance. Make sure the function is really defined as Public Function ConcatRelated(…, the Public here is important, otherwise the function will not be visible outside the module itself.
There is nothing wrong with syntax of $(‘#part’ + number).html(text); jQuery accepts a String (usually a CSS Selector) or a DOM Node as parameter to create a jQuery Object. In your case you should pass a String to $() that is $(<a string>) Make sure you have access to the variables number and text. To … Read more
In C and C++, string literals next to each other are concatenated. As these languages influenced Ruby, I’d guess it inherits from there. And it is documented in Ruby now: see this answer and this page in the Ruby repo which states: Adjacent string literals are automatically concatenated by the interpreter: “con” “cat” “en” “at” … Read more