WebTo compress an OUTPUT data set that is generated by PROC COPY, you can use the COMPRESS=YES system option before the PROC COPY statement with the WebWhen COMPRESS=BINARY, SAS uses Ross Data Compression, which combines run-length encoding and sliding-window compression to compress the data set. Use WebUse SAS/Toolkit to specify your own compression method. Use the COMPRESS= data set option to compress an individual file. Specify the option for output data sets only. That Web15/03/ · In my experience a lot of SAS sites have COMPRESS = YES switched on as a permanent session option because it can both reduce disk storage significantly as well Web18/12/ · The COMPRESS= system option compresses all data set sets that are created during a SAS session, and the COMPRESS= option in the LIBNAME statement ... read more
It is more costly to look for strings of bytes that repeat, than to look for single bytes that repeat. That is, they cannot be used together. The XPORT engine does not support compression. The following message is written to the SAS log: NOTE: Compressing data set MYLIB.
Compressed is 45 pages; un-compressed would require pages. Compressed is pages; un-compressed would require pages. See Also Compressing Data Files in SAS Language Reference: Concepts.
Data Set Options:. LIBNAME Statement in SAS Statements: Reference. System Options:. Copyright © SAS Institute Inc. However, when you shorten the length to 4 bytes, the layout of the value is no longer suitable for compression. The only reason to truncate the storage length by using the LENGTH statement is to save disk space. All values are expanded to the full size of 8 bytes in the program data vector to perform computations in DATA and PROC steps.
You'll use extra CPU resources to uncompress the data set as well as to expand variables back to 8 bytes. Binary compression uses two techniques at the same time. This option searches for the following:. With that in mind, you can see that the bytes in a numeric variable are just as likely to be compressed as those in a character variable because the compression process does not consider those bytes to be numeric or character.
They are just viewed as bytes. Consider a missing value that is represented in hexadecimal notation as FFFF In the middle of that value is a string of five zero bytes 0x00 that can be replaced by two compression code-bytes. So, what starts as a sequence of 8 bytes ends up as a sequence of 5 bytes. Some data sets are not going to compress well and the data set will grow larger, so know your data.
Kim Wilson is a Technical Support Analyst in the Foundation SAS group in Technical Support. She has been a SAS user since , and provides general support for the DATA step, macro, and Base procedures. She has written several papers and presented them at various SAS conferences and user events. Excellent article, good to see quality content we can all share between all users. js Collect. Notes Ethics Notes Polity Notes Economics Notes UPSC Previous Year Papers SSC CGL SSC CGL Syllabus General Studies English Reasoning Subjectwise Practice Papers Previous Year Papers Banking Exams SBI Clerk SBI Clerk Syllabus General Awareness English Quantitative Aptitude Reasoning Ability SBI Clerk Practice Papers SBI PO SBI PO Syllabus General Awareness English Quantitative Aptitude Reasoning Ability Previous Year Papers SBI PO Practice Papers IBPS PO IBPS PO Syllabus English Notes Reasoning Notes Previous Year Papers Mock Question Papers IBPS Clerk IBPS Clerk Syllabus English Notes Previous Year Papers Jobs Apply for a Job Apply through Jobathon Post a Job Hire through Jobathon Practice All DSA Problems Problem of the Day Interview Series: Weekly Contests Bi-Wizard Coding: School Contests Events Practice SDE Sheet Curated DSA Lists Top 50 Array Problems Top 50 String Problems Top 50 Tree Problems Top 50 Graph Problems Top 50 DP Problems Contests.
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That didnt prevent Monday from being the kick off of festivities I had two events Monday evening, starting with the Women of OpenStack networking event at Aoyama Laputa Garden. I was happy to be around many familiar faces who all made the evening an enjoyable one.
From there, I returned to the summit venue to then walk over to the HP employee party at a nearby restaurant which rounded out my evening.
Thankfully back at the hotel by 10PM, we have a long week ahead of us. Tuesday was the actual launch of the summit. The initial stats coming out say that this summit has just over 5, attendees from 56 countries, which makes it the biggest non-North American summit to date. My day began by attending several keynotes all of which are in the video here: OpenStack Tokyo Summit Full Keynote. It continues to be inspiring to watch such diverse companies embracing not only the usage of open source and OpenStack, but the contributions back to the community.
Its noteworthy that contributing back is always a highlight of many of the keynotes given by companies at this event. Jonathan Bryce also talked about the cool new feature on the OpenStack website that takes various metrics and creates a table tracking age, maturity and adoption to help operators evaluate each component, it can be found at: openstack.
He also announced an OpenStack certification that was built and developed with some of the training partners and will start being available to take in The keynote from Lithium Technologies talked about their use of containers in their OpenStack deployment and how theyve allowed the company to do some really interesting scaling and high availability work.
Plus, the presenter did a live demo of updating a site in production as he replaced lasers with fish in the Croc Hunter game, I guess making it Croc Feeder The keynote from Yahoo Japan had the most interesting statistics, sharing that they have 50k instances across their OpenStack deployment, 20 petabytes of data storage for it and over 20 OpenStack clusters.
It was also interesting to hear from Erica Brescia, COO and co-founder of Bitnami, who spoke to making cloud platforms as easy to contribute to as possible, which touched upon the commoditization of cloud and how companies manage to distinguish themselves in an ecosystem that has so much choice.
After Ericas keynote I had to run out to meet up with some of my HP colleagues for a quick interview with Stephen Spector about the work Im doing on the Infrastructure team.
Im admittedly not one for videos or live interviews in general, but I really love talking about my work, so I hope at least that was reflected in the video which will be posted soon. The first was a summit presentation on Get OpenStack to speak your language OpenStack I18n Team Introduction by Ying Chun Daisy Guo of IBM, Carlos Munoz of Red Hat and KATO Tomoyuki of Fujitsu. Daisy began by talking about the short history of i18n team, the current statistics of 40 language teams working on various languages, the 12 languages that fully translated Horizon for the Liberty cycle and an overview of team organization and high priority targets for translations, including Horizon and the user guides.
Carlos went on to talk about Zanata and the script workflow that weve developed in OpenStack for syncing between git, our code review system and Zanata. He also covered pending improvements, including to glossary support, per-project permissions, statistics including for Stackalytics , better request management for people wishing to join teams and have to be approved by translations coordinators. KATO then concluded the session by doing a demo of the OpenStack Zanata instance to demonstrate how to get started with using it and shared some best practices put in place by the Japanese team, reflecting that other teams would also have similar practices that potential translators should look into.
He also mentioned the dashboard translation check site being worked on for Mitaka, which we created a spec for last cycle: Provide a translation check site for translators.
Video of the presentation is available here. I did some wandering around the Marketplace and then had lunch with my friend and colleague Steve Kowalik who Ive most recently been doing a lot of translations infrastructure work with. Events of my afternoon continued with the session I was nominally leading on Translation Tool Support: What Do We Need to Improve The discussion mostly centered around the experience and improvements needed for Zanata, which went live for the Liberty cycle translations in September.
Aside from a few pain points, the major discussion happened around the need for statistics to be fed into Stackalytics and the barriers that exist to making that happen.
We also touched upon the translation check site I mentioned earlier, and I think we now have a path forward to getting the tooling that had been used in the past for a privately hosted instance shared so we can see how to replicate it in OpenStacks Infrastructure.
Read-only Etherpad with notes from the session here. Daisy ran the next session on Translation and Development: How Do They Work Together where we spent a lot of time talking about how the freezing of branches and importing for the Liberty release worked and speculating as to what changes needed to be made so that the development cycle isnt held up and the translators still have enough time to do their work.
We also dove into some discussions around how the scripts currently work and preferences around handling stable branches that translators may want to go back to and update and have included in a stable release update.
Jumping right back in with parties, this evening I attended the Core Reviewers party put on by HP. This party is usually a highlight of the summits for me, and this time was no exception.
It was hosted at Sengakuji Temple which houses a small museum related to the on site cemetery of the famous Forty-seven Ronin who avenged their masters death and then committed seppuku ritual suicide in lieu of other punishment.
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WebWhen COMPRESS=BINARY, SAS uses Ross Data Compression, which combines run-length encoding and sliding-window compression to compress the data set. Use Web22/11/ · To implement compression of either type SAS inserts information about where and how much compression is made, as well as the compressed values in WebUndeceitful computer: the voor option is equivalent to parties occupying foreign walutowe within the binary risks meest bond and options compress binary in sas who report Web10/11/ · Options trading - Have you heard about Binary options but are to afraid to ask by now? Sas Option Compress=Binary WebUse SAS/Toolkit to specify your own compression method. Use the COMPRESS= data set option to compress an individual file. Specify the option for output data sets only. That Web15/03/ · In my experience a lot of SAS sites have COMPRESS = YES switched on as a permanent session option because it can both reduce disk storage significantly as well ... read more