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what is the length of this variable?


what is the length of this variable?

By : Matt
Date : November 28 2020, 09:01 AM
To fix this issue To change the length,we must use the LENGTH statement as the very first statement in the DATA STEP ,but the position will be changed at the same time. In your code the LENGTH statement has no effect on the length of JOBCODE variable because of this
code :


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variable-length array of inputs in a variable-length javascript form

variable-length array of inputs in a variable-length javascript form


By : user3545645
Date : March 29 2020, 07:55 AM
wish help you to fix your issue I want to create a javascript form that basically has a bunch of text input boxes. But I want the number of boxes to be the value of some variable, and I would like the id's or the names of the boxes to be elements in one array. , To create the textboxes:
code :
var x = 10,
    str = '';
while (x) {
  str = str + '<input type="text" name="box[]" id="box' + x + '">';
  x = x - 1;
}
foreach ($_POST['box'] as $box) {
  // do something with the input value
}
Does adding another variable length column to a table with variable length rows further impact performance?

Does adding another variable length column to a table with variable length rows further impact performance?


By : Yasser Maged
Date : March 29 2020, 07:55 AM
around this issue Yes and no. It is true that variable width character columns are slightly slower then fixed width character columns. But the "penalty" (or performance cost) is cummulative and per column. So, every column you add to your query in general (fixed width or otherwise) is going to impact performance (as you query more data, it takes longer to fetch all of the data).
With variable length list of variable length strings, how do I create all combinations

With variable length list of variable length strings, how do I create all combinations


By : user2898479
Date : March 29 2020, 07:55 AM
I wish did fix the issue. In python 3, I have a variable length list, where each element of the list is a variable length string. Something like this
code :
>>> (''.join(s) for s in itertools.product(*['TO', 'G', 'ZDO', 'DEO', 'SGT', 'D', 'Z', 'FT', 'OV']))
<generator object <genexpr> at 0x7f2a46468f00>
>>> # to demonstrate:
... 
>>> list(itertools.islice((''.join(s) for s in itertools.product(*['TO', 'G', 'ZDO', 'DEO', 'SGT', 'D', 'Z', 'FT', 'OV'])), 3))
['TGZDSDZFO', 'TGZDSDZFV', 'TGZDSDZTO']
Extract left to a pattern upto a given variable length in R [Variable length look behind]

Extract left to a pattern upto a given variable length in R [Variable length look behind]


By : macintoshJake
Date : March 29 2020, 07:55 AM
hop of those help? I have a string matrix which contains sector specific revenue contribution of certain companies. I have to extract a matrix which only contains revenue from software. The matrix is as under: , I would use the stringr library. For your example it would be:
code :
library("stringr")
revenue <- data.frame(revenue = c("79% Software, 1% Hardware, 20% Services", NA, NA, "10.5% Software, 90% Services", "1.4% Software, 98.6% Services", "17% Software, 83% Services", NA, "100% Services", "47% Services, 39% Hardware, 14.32% Software"))
pattern <- "(([[:digit:]]|.[[:digit:]]+)*)(?=% Software)"
as.numeric(str_extract(revenue$revenue,pattern))
Ada why check if an objects length is not equal to itself. Ex if(variable'Length /= variable'length)

Ada why check if an objects length is not equal to itself. Ex if(variable'Length /= variable'length)


By : San Andreas
Date : March 29 2020, 07:55 AM
I wish this help you Never. You can only ask for the length of an array object, and once that object has been declared, it can't change.
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