Skip to main content

Questions tagged [sequence]

A sequence is an ordered list of objects (or events). Like a set, it contains members (also called elements or terms), and the number of terms (possibly infinite) is called the length of the sequence. Unlike a set, order matters, and exactly the same elements can appear multiple times at different positions in the sequence. In a relational database, a sequence is an object that is used to generate unique numbers for a primary key.

0 votes
0 answers
6 views

R function/package to find frequent consecutive patterns in bunch of sequences

So let's say I have a bunch of sequences consisting in series of numbers going from 1 to 25. (for example (x<- (1,16,2,2,3,6,18,16)). I just want to find in all those sequences if there is frequent ...
Maxen Lounici's user avatar
1 vote
0 answers
46 views

CSAPP 3e (global): Possible erratum for "Practice Problem 8.3" (p. 781)?

Due to the relative lack of popularity of CSAPP's global edition, I have been unable to figure out whether exercise problem 8.3 (partial screenshots shown above) is entirely correct. I have only found ...
RobSim's user avatar
  • 41
0 votes
0 answers
34 views

Does seq() have rounding errors? [duplicate]

Why does seq() has some problems when going through 0? Why does seq() not handle the following? seq(-1.2, 0, by = 0.2) # [1] -1.2 -1.0 -0.8 -0.6 -0.4 -0.2 0.0 seq(-1.2, 0.2, by = 0.2) # [1] -1....
drT's user avatar
  • 156
-2 votes
0 answers
61 views

How can Flat sequences occupy more memory than container sequences in Python? [duplicate]

Fluent python book describes two types of sequences: Container and Flat, with container sequences being able to hold items of different types but as reference to python objects, while flat sequences ...
DarKing's user avatar
  • 21
0 votes
1 answer
49 views

Why is seq function output not consistent? [duplicate]

I am using seq function. While it gives correct output for positive numbers when used input is given using :, I am not sure why does the following 2 ways produce different outputs (when input starts ...
Gaurav Shukla's user avatar
0 votes
0 answers
20 views

In Postgresql, how to reset all sequences in a schema so the current value of sequence will match the max values of the primary key

I am refreshing schema data in a Postgresql database. The best and easiest way to do it is dropping the schema and restore it from a backup from the source database. But in this case we are not ...
Henry Cai's user avatar
1 vote
2 answers
53 views

How to filter data with sequences missing sections of a specified size or greater?

I have a data frame with a sequence (Slice) of observations for each group. Many of the sequences are incomplete. This is a simplified version of the data: Slice GroupID Observation 1 A 1 2 A 6 3 ...
user21008368's user avatar
-1 votes
1 answer
33 views

How to increment range for ARRAYFORMULA function in Google Sheets across different rows

I am trying to create a Split calculator on google sheets for me and my friends whenver we go out to eat for something like Korean food.Sample Split Calculator I have tried to use ARRAYFORMULA with ...
Simon He's user avatar
2 votes
1 answer
48 views

Kotlin Eratosthenes' Sieve Implementation Issues - Why is 4 Missing?

I have implemented the Sieve of Eratosthenes in Kotlin to generate prime numbers. I noticed an issue where the second version of my code does not work correctly, and I'm puzzled as to why the number 4 ...
JSW's user avatar
  • 23
1 vote
1 answer
41 views

Is there a visual tool to debug Kotlin Sequence in IntelliJ IDEA similar to Java Stream debug with Stream Trace?

I code in Kotlin and use Sequence a lot. I use IntelliJ IDEA and there is nice visual debug tool to introspect your Java Stream processing steps. Is there anything similar for Sequences? There is ...
Mamut's user avatar
  • 183
2 votes
3 answers
69 views

Generating a pseudorandom binary sequence with conditions in R

I am wanting to generate 5 blocks of pseudorandom binary sequences (to be stored in a data frame) with the following conditions for each block: 150 0s 25 1s The sequence cannot begin or end with a ...
Elle's user avatar
  • 23
2 votes
3 answers
106 views

How to iterate over multiple ranges / sequences / numbers specified in var?

I can iterate over multiple ranges / sequences / numbers with constructions like: for i in $(seq 1 3) 5 $(seq 7 9) 11; do echo $i; done for i in {1..3} 5 {7..9} 11; do echo $i; done But how to ...
Anton Samokat's user avatar
0 votes
1 answer
41 views

How can I access a buffer or sequence in an unusual order?

I have a block of memory representing RGB values for a 8 row x 32 column matrix. When writing into this block of memory, it would be convenient to treat it as properly ordered. When reading from the ...
Helpful's user avatar
  • 706
0 votes
0 answers
29 views

I have a list that contains 12 elements. I would like to make a function that subset the list based on a sequence every nth element

I have a list containing 12 data frames. I would like to subset/split the list after every third elements based on a sequence. And make a new data frame of the new subsetted list . # my_list ...
Alis Mohd's user avatar
0 votes
1 answer
104 views

How to retrieve SEQNO with TONWEB SDK

image from the object Hello stackoverflow community, this is my first question and I will try to be as much detailed as I can. Question: I am trying to retrieve SEQNO with TONWEB SDK but I am running ...
Oliver's user avatar
  • 3

15 30 50 per page
1
2 3 4 5
405