Vizi | A Component-Based Framework for Visual Web Applications | Graphics library
kandi X-RAY | Vizi Summary
kandi X-RAY | Vizi Summary
A Framework for Building Interactive 3D Applications in WebGL.
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Top functions reviewed by kandi - BETA
- Setup mesh buffers .
- Handle the loading hierarchy
- Parse a JSON model .
- set the program
- Check option .
- Render a face
- Transform a string to a string
- Adds an object to the scene
- Blur a canvas in a box
- Remove holes from the contours of holes
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QUESTION
I have a problem statement as follows:
In each examination centre, exam is to be organised in two shifts batch I & batch II(reporting time 9:00 AM & 2 PM). Exam can be conducted at any day in a district during December 1-30, 2020 depending upon the number of candidates in a district. Note in each district only one examination centre is possible and in one shift maximum 20 students can appear. Based on the information mentioned above complete the examination database by allocating:
- Rollno: Roll number of the candidate will start from NL2000001 onwards(eg: NL2000001, NL2000002, NL2000003……)
- cent_allot: allocate centre by putting examination city code
- cent_add: put NL "District Name" as center address in each location (for eg if district name is ADI then centre add is NL ADI)
- examDate: Allocate any exam date between December 1,2020 to December 30, 2020 keeping minimum no of examination days and not violating any conditions mentioned above
- batch: allocate batch I or II ensuring all the conditions mentioned above
- rep_time: for batch I reporting time is 9 AM and for batch II reporting time is 2 PM.
As per the above description, I need to make a table which satisfies the above conditions. I have already made the Rollno, cent_allot and cent_add columns, but I am struggling in making the examDate column, since it should have same date for every 40 values of district.
Here is the list of the districts and their frequency of occurrences:
...ANSWER
Answered 2020-Nov-14 at 15:40The key is to use .groupby().cumcount()
to get the running number first. The examDate
and batch
can be subsequently determined respectively by the modulus of the running number against 40 and 20.
Random rows are generated using the given total count for each Dist
.
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