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Prepare, analyze, and visualize data with R
07.06.2019
Home »  Archive  »  2019  »  Issue 51: Self-...  » 
Lead Image © Buchachon Petthanya, 123RF.com
: > numbers <- c(1, 2, 3, 4, 5) The c() function – the c stands for "concatenate" – combines the individual elements listed in parentheses. An equals sign can be used as an alternative for assignments, in line
16%
Getting started with Prometheus
28.11.2021
Home »  Archive  »  2021  »  Issue 66: Inci...  » 
Photo by Clay LeConey on Unsplash
. As the name suggests, PromQL is a query language that can be employed to extract information from the Prometheus TSDB. A common structure is the use of a metric name (a value) together with one or more labels
16%
Data Analysis with R and Python
17.02.2015
Home »  Archive  »  2015  »  Issue 25: Safe...  » 
Lead Image © mopic, 123RF.com
/json;charset=utf-8\n\r\n\r%s" %json.dumps(obj) Lines 9 through 18 iterate against all entries of a database cursor, which the call to the find() method in line 9, generates from the queried data collection
16%
Measuring the performance health of system nodes
02.08.2022
Home »  Archive  »  2022  »  Issue 70: Defen...  » 
Lead Image © Peter Hermes Furian, 123RF.com
. The primary changes made to the benchmarks of the latest version 3.4.2 of the NPB are: added class F to the existing S, W, A, B, C, D, E added dynamic memory allocation added MPI and Open
16%
DNSSEC-aware DNS caching with Unbound
01.08.2019
Home »  Archive  »  2019  »  Issue 52: Stop...  » 
Lead Image © Antonella Grandoni , Fotolia.com
INPUT iptables -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT iptables -A INPUT -i eth0 -j DROP iptables -A INPUT -i eth1 -p tcp --dport 22 -j ACCEPT iptables -A INPUT -i eth1 -j DROP
16%
Program GUIs in Go with Fyne
28.11.2021
Home »  Archive  »  2021  »  Issue 66: Inci...  » 
Photo by Santoshi Guruju on Unsplash
). The import statement brings in the required packages. To create an executable program, line 9 defines the main() function as the entry point. The app.New() method creates a new Fyne instance, and the a
16%
Retrieving Windows performance data in PowerShell
10.04.2015
Home »  Archive  »  2015  »  Issue 26: OpenS...  » 
Lead Image © andresr, fotolia.com
Number: 00282-30340-00000-AB9A5 Version: 6.3.9600 The information you read from the operating system can also be formatted and customized. For example, normally only the operating system's most
16%
Warewulf Cluster Manager – Master and Compute Nodes
22.05.2012
Home »  HPC  »  Articles  » 
already installed and latest version Package redhat-rpm-config-9.0.3-34.el6.sl.noarch already installed and latest version Package rpm-build-4.8.0-19.el6_2.1.x86_64 already installed and latest version
16%
Performance Health Check
13.06.2022
Home »  HPC  »  Articles  » 
Many HPC systems check the state of a node b efore  running a n  application, but not very many check that the performance of the node is acceptable before running the job. ... made to the benchmarks of the latest version 3.4.2 of the NPB are: added class F to the existing S, W, A, B, C, D, E added dynamic memory allocation added MPI and OpenMP programming models ... Many HPC systems check the state of a node b efore  running a n  application, but not very many check that the performance of the node is acceptable before running the job.
16%
DevSecOps with DefectDojo
03.04.2024
Home »  Archive  »  2024  »  Issue 80: Threa...  » 
Lead Image © Aleksey Mnogosmyslov, 123RF.com
64ae120c27e504088d8c2ce29a0fa7f85c The example code in Listing 2 uses Python to demonstrate how to use the API to retrieve user information. To begin, import the Python Requests API and define the URL

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