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Questions tagged [sentinel]

A sentinel is a loop exit value or list delimiter whose value is outside the range of valid input, such as -1 for a zero-based array index, or ~ for alphabetic strings.

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Code given by professor contains nonexistent commands

The main() below was given to my class by the professor with the objective of making the program into a sentinel loop but he claims that the program will run as a one off with copy paste but "getRootCount" and "solveEquation" are flagging and it…
Nolan Van Schmus
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Downloading weekly Sentinel 2 data using SentinelApi

I'm trying to download weekly Sentinel 2 data for one year. So, one Sentinel dataset within each week of the year. I can create a list of datasets using the code: from sentinelsat import SentinelAPI api = SentinelAPI(user, password,…
Ross S
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Trying to add a sentinel that is not a number (Python)

(I am new to Python so forgive me in advance) I have to write a program that calculates the total of integers from 1 to the user input. So if I input 4, it would add 1+2+3+4. I also added an argument that makes a number that is less than 1 print…
maze
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Example config Openresty(nginx) cache lua-resty-redis-connector

Can someone give a simple and complete working example of using redis as a cache store using lua. My stack used is openresty+sentinel(redis)+lua-resty-redis-connector I'm trying to figure it out until I can't. I would like to see a simple and…
momai
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Pet Shop Discount in python3

A pet shop wants to give a discount to its clients if they buy one or more pets and at least five other items. The discount is equal to 20 percent of the cost of the other items, but not the pets. Implement a function def discount(prices, isPet,…
pevans590
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I'm in a bind with pulling certain lines from a JSON file and adding them to CSV file

I am in need of any help that can be given I have about 300 JSON files that I'm looking to export the following values from JSON into an Excel Spreadsheet or a CSV file. ``` displayName = Base Use Case enabled =…
KentuckyMike
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How can I turn values in my Doubly Linked List into a string?

I have created a class SLList where I take in a doubly linked list SLList where the input can be of any generic type. In order to aid myself in doing this, I've implemented sentinels to help me. However, now, I need to find how to turn my Doubly…
Droid
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How can I get the index of a specific node in a doubly linked list?

I have a class called SLList whuch accepts a doubly linked list SLList of any generic type as an input. I've decided to use a sentinel approach to aid in my task. I am now trying to convert my doubly linked list into a string using function public…
Nutnicha
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Can someone please explain how can I remove first and last nodes in my doubly linked list?

I have created a class SLList where I take in a doubly linked list SLList and make some adaptations to it. Now, I'm trying to remove the first node in the doubly linked list and the last node in the doubly linked list via two functions known as…
Nutnicha
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How to add a new node at the start of a doubly linked list?

I have created a class SLList where I'm going to take a doubly linked list SLlist and I'm trying to find how to add a new node of any type to the start of that doubly linked list. In order to do this, I have made some sentinels firstsen and lastsen…
Nutnicha
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is there a way to resolve index out of bonds error (using geopandas)?

SHAPE_PATH = os.path.join(".", "/home/sahil/", "mapa.geojson") area_gdf = gpd.read_file(SHAPE_PATH) Geometry of an entire area full_geometry = Geometry(area_gdf.geometry.values[0], crs=CRS.WGS84) Bounding box of a test sub-area test_bbox…
Sahil Jain
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Redis Sentinel load balancing

I have redis sentinel setup with 1 master and 2 slaves (this has to be done for production environment), can anyone please suggest how to achieve load balancing effectively in this case !! I'm new to redis as well as to load balancing. TIA
tcs hr
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using python to download sentinel imagery directly

I'm trying to download sentinel satellite images directly using python. the idea is to use sentinelsat API and a geojson polygon to download it. however it downloads the entire image and not only the polygone. is there a way to make it download only…
Ayoub BENCHAREF
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How to create and deploy custom policies on the resources of GCP?

I want to create organizational custom policies and apply those to different services of GCP. The policies are mainly related to security which can actually be created using licensed Sentinel DSL language. I want to know whether it's feasible to…
A srinivas
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Calculate NDRE index from sentinel-2 images

I before computed the Normalized Difference Vegetation Index (NDVI) using two images from Sentine-2 (band 4 and band 8) this both images has a 10m resolution, however now I would like computed the Normalized Difference Red Edge Index (NDRE) but the…
FreddicMatters
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