intervals Questions

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I'm trying to convert minutes which are in integer to interval in postgres Is there any function that will help me to convert it to interval or should i have divide it by 60 and get the final resul...
Solitary asked 27/4, 2017 at 11:43

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I have a sorted array of N intervals of different length. I am plotting these intervals with alternating colors blue/green. I am trying to find a method or algorithm to "downsample" the array of i...
Borroff asked 30/12, 2018 at 14:34

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I find myself needing to specify a timespan in a python configuration file a lot. Is there a way that I can specify a more human readable timeframe (similar to PostgreSQL's Interval syntax) in a ...
Eun asked 19/12, 2012 at 18:35

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What are the advantages of ball arithmetic (Arb) over interval arithmetic (MPFI)? In other words, what are the advantages of representing an interval as [center, radius] over [left, right]? This ...
Tetralogy asked 2/11, 2018 at 17:17

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I have used the module intervals (http://pyinterval.readthedocs.io/en/latest/index.html) And created an interval from a set or start, end tuples: intervals = interval.interval([1,8], [7,10], [15,...
Amortizement asked 9/8, 2016 at 22:15

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I often find myself trying to create a categorical variable from a numerical variable + a user-provided set of ranges. For instance, say that I have a data.frame with a numeric variable df$V and ...
Laccolith asked 4/2, 2016 at 14:50

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I'm looking for a Haskell container type like Data.Map that uses intervals as keys, where the left-most and right-most keys may also be unbounded intervals, but are otherwise non-overlapping. Addit...
Bozuwa asked 24/7, 2018 at 11:14

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I used command curl -XPOST 'localhost:9200/_refresh?pretty' to refresh ES. I have read couple of posts where we can set refresh_interval to -1 to disable it, or the default refresh_interval is 1s....
Briquet asked 24/2, 2017 at 21:12

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In pandas 20.1, with the interval type, is it possible to find the midpoint, left or center values in a series. For example: Create an interval datatype column, and perform some aggregation calc...
Quinlan asked 20/5, 2017 at 16:44

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Is there an implementation of rational interval arithmetic in Python? This uses floats, not rationals. If not, is there any implementation of rationals in Python that includes ±∞ ?
Katerine asked 2/1, 2011 at 8:41

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I need to store simple data - suppose I have some products with codes as a primary key, some properties and validity ranges. So data could look like this: Products code value begin_date end_date 1...
Vahe asked 10/11, 2016 at 16:45

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my data looks like name| From | To_City | Date of request Andy| Paris | London| 08/21/2014 12:00 Lena | Koln | Berlin | 08/22/2014 18:00 Andy| Paris | London | 08/22/2014 06:00 Lisa | Rome | Neape...
Mejia asked 27/4, 2015 at 14:53

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I have a wide Pandas dataframe with TimeIndexed values and I wanted to select with an Interval object that I made: inter = pd.Interval(pd.Timestamp('2017-12-05 16:36:17'), pd.Timestamp('2017-12-0...
Navada asked 7/2, 2018 at 20:18

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Using SymPy, is it possible to limit the possible values of a symbol/variable to a certain range? I now I can set some properties while defining symbols, like positive=True, but I need more control...
Immunology asked 23/10, 2013 at 22:40

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I want to call an arbitrary function every n seconds. Basically I want something identical to SetInterval from Javascript. How can I achieve this in Scala?
Diffusive asked 17/8, 2014 at 16:27

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I've got a class representing an interval. This class has two properties "start" and "end" of a comparable type. Now I'm searching for an efficient algorithm to take the union of a set of such inte...
Skite asked 23/6, 2009 at 19:55

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I am trying to create a Google Map where the user can plot the route he walked/ran/bicycled and see how long he ran. The GPolyline class with it’s getLength() method is very helpful in this regard ...
Found asked 23/4, 2010 at 11:29

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I have got a TimePickerDialog working to set time which is set to a TextView in order to display it. Now, I need help to set that TimePicker (inside the TimePickerDialog) minutues interval to 15 mi...
Leadsman asked 10/10, 2011 at 13:32

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I bumped into this question and I am not sure if my solution is optimal. Problem Given N weighted (Wi) and possibly overlapping intervals (representing meeting schedules) , find the minimum numb...

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I have aset of ip ranges and i need to find if the ip given by the user exists between the given list of ip ranges . This is in continuation to this question How to check if a given ip falls bet...
Defective asked 13/9, 2017 at 17:24

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I work with a Postgres database. This DB has a table with users, who have a birthdate (date field). Now I want to get all users who have their birthday in the upcoming week.... My first attempt: S...
Uri asked 2/8, 2011 at 14:30

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I have been searching for an efficient algorithm to merge overlapping intervals on a dynamic array of intervals. For example, (start time, end time) wise, [(1, 2), (4, 8), (3, 10)] becomes [(1...
Presley asked 20/6, 2017 at 18:4

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ISO 8601 defines a syntax for representing a time interval. There are four ways to express a time interval: Start and end, such as "2007-03-01T13:00:00Z/2008-05-11T15:30:00Z" Start and duration...
Feliks asked 12/4, 2013 at 17:42

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I would like to count the amount of sessions started at each 15 minutes intervals for businessdays within a large dataset. My data looks like: df <- Start_datetime End_datetime Duration Vo...
Hyland asked 13/6, 2017 at 10:6

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A library and webservice I am using communicates time-intervals in ISO 8601 format: PnYnMnDTnHnMnS. I want to convert such formats to seconds. And vice versa. Seconds are a lot easier to calculate ...
Iseabal asked 15/9, 2010 at 19:27

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