Tag: Updates

Feed: R-bloggers. Author: R on The CuRious Financial Risk ManageR. In this post we will close the trilogy on (old style) swap pricing. In particular, we will look at how downloading the data for the variable rate needed to calculate the variable leg accrual. Part 1gave the general idea behind tidy pricing interest rate swaps using a 7 linespipe Part 2went much more into detail and priced some real world contract comparing the resultsobtained vs Bloomberg and showing significantly good results. The only part missing was calculating the accrual for the floating leg. To do thiswe need the information about ... Read More

Feed: R-bloggers. Author: rOpenSci - open tools for open science. The grainchanger package provides functionality for data aggregation to a coarser resolution via moving-window or direct methods. Why do we need new methods for data aggregation? As landscape ecologists and macroecologists, we often need to aggregate data in order to harmonise datasets. In doing so, we often lose a lot of information about the spatial structure and environmental heterogeneity of data measured at finer resolution. The issues around scale disconnects are both conceptual and practical: Conceptual issues Technical issues The scale we measure this stuff at varies too Ecological response ... Read More

Feed: R-bloggers. Author: Keith Goldfeld. In the last two posts, I introduced the notion of time-varying intra-cluster correlations in the context of stepped-wedge study designs. (See here and here). Though I generated lots of data for those posts, I didn’t fit any models to see if I could recover the estimates and any underlying assumptions. That’s what I am doing now. My focus here is on the simplest case, where the ICC’s are constant over time and between time. Typically, I would just use a mixed-effects model to estimate the treatment effect and account for variability across clusters, which is ... Read More

Feed: R-bloggers. Author: hrbrmstr. Despite being a full-on denizen of all things digital I receive a fair number of dead-tree print magazines as there’s nothing quite like seeing an amazing, large, full-color print data-driven visualization up close and personal. I also like supporting data journalism through the subscriptions since without cash we will only have insane, extreme left/right-wing perspectives out there. One of these publications is The Economist (I’d subscribe to the Financial Times as well for the non-liberal perspective but I don’t need another mortgage payment right now). The graphics folks at The Economist are Top Notch and a ... Read More

Feed: AWS Partner Network (APN) Blog. Author: Saurabh Shrivastava. By Thooyavan Arumugam, Senior Cloud Architect at Tech MahindraBy Saurabh Shrivastava, Partner Solutions Architect at AWSBy Vivek Raju, Manager, Partner Solutions Architect at AWSIBM Maximo is an Enterprise Asset Management (EAM) solution that helps organizations manage their assets, track operations, and perform preventive maintenance using predictive analysis and enterprise-ready features. Maximo can be deployed in an on-premises environment, as well as on a public cloud or hybrid cloud environment. As cloud computing is becoming the industry norm, Amazon Web Services (AWS) provides Infrastructure as a Service (IaaS) solutions and a broad ... Read More

Feed: SAS Blogs. Author: Kim Andreaus. Last month I wrote a blog about sibling rivalry in caregiving which began with the following thoughts:  'As we are all well aware, providing caregiving for our parent(s) is complicated and messy.   Siblings can often be both a blessing and a curse in this process, providing much needed relief and support, or perhaps creating additional stress and barriers to important decisions and resources.' I received several very thoughtful responses – some of which followed a fairly consistent pattern of “Ok, thanks for unpacking the concept – now what?”  So I thought I would spend ... Read More

Feed: Recent Announcements. The Amazon Corretto Crypto Provider (ACCP), a cryptography performance improvement for Amazon Corretto, is now available. Historically, Java cryptography has been CPU-intensive resulting in slow performance and elevated operational costs. ACCP updates dozens of cryptographic algorithms, accelerating cryptographic workloads ... Read More

Feed: Planet PostgreSQL. proposed by PostgreSQL contributor Alvaro Herrera. BRIN stands for “Block Range INdex”. A block range is a group of pages adjacent to each other, where summary information about all those pages is stored in Index.  For example, Datatypes like integers – dates where sort order is linear – can be stored as min and max value in the range. Other database systems including Oracle announced similar features later. BRIN index often gives similar gains as Partitioning a table.BRIN usage will return all the tuples in all the pages in the particular range. So the index is lossy ... Read More

Feed: Planet big data. Author: Gina Bhawalkar. A recent study on design maturity from InVision revealed something really interesting: that design team size is not predictive of a design team’s maturity. That is, it’s possible to dedicate a lot of headcount to design but still see limited benefits on business outcomes. Not only did they find there’s not a correlation, but they also found the average size of the highest-maturity teams — what they call Level 5 — is half that of Level 1 maturity teams. So if unlocking the business benefits of design doesn’t come with investing in more ... Read More

Feed: Redis Labs. Author: Chris Cheung. At RedisConf19, we officially released a new module called Redis Gears. You may have already seen some other modules by either Redis Labs or the community at large, but Gears will defy any expectations you have. It really pushes the limits of what is possible with modules. Gears scripts At first glance, Redis Gears looks like a general-purpose scripting language that can be used to query your data in Redis. Imagine having a few hashmaps in your Redis database with user-related information such as age and first/last name. Here is the execution breakdown for ... Read More