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dplyr is an R package whose set of functions are designed to enable dataframe (a spreadsheet-like data structure) manipulation in an intuitive, user-friendly way. It is one of the core packages of the popular tidyverse set of packages in the R programming language. [1]
The tidyverse is a collection of open source packages for the R programming language introduced by Hadley Wickham [1] and his team that "share an underlying design philosophy, grammar, and data structures" of tidy data. [2] Characteristic features of tidyverse packages include extensive use of non-standard evaluation and encouraging piping. [3 ...
The Panda is assembled in Sri Lanka by Micro Cars from complete knock down kits. It is a small city car sold with a choice of 1.0 or 1.3 L (0.22 or 0.29 imp gal; 0.26 or 0.34 US gal) petrol engines.
SLAF China Bay (Sri Lanka Air Force Academy China Bay) [1] – China Bay; SLAF Anuradhapura (Sri Lanka Air Force Base Anuradhapura) [2] – Anuradhapura; SLAF Hingurakgoda (Sri Lanka Air Force Base Hingurakgoda) [3] – Hingurakgoda; SLAF Katunayake (Sri Lanka Air Force Base Katunayake) [4] – Katunayake
Class S12 is a diesel multiple-unit (DMU), built for Sri Lanka Railways by China's CSR Corporation. The first batch arrived in Sri Lanka in August 2012. They were built to replace locomotive-hauled passenger trains. Seven of the S12 DMUs were ordered to strengthen long-distance travel on the Main line from Colombo to Badulla.
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Centre for Defence Research and Development (CDRD) is a Sri Lankan Research and Development (R&D) institute under the Ministry of Defence responsible for the development technology for the Armed Forces of Sri Lanka. The CDRD cooperates with various branches of the military as well as other entities and is engaged in the development of both ...
In the 1990s, Sri Lanka Railways converted the narrow gauge (2 ft 6 in (762 mm)) Kelani Valley line into 5 ft 6 in (1,676 mm) broad gauge. This was the last narrow gauge line left in Sri Lanka, and its conversion to broad gauge put the fleet of narrow gauge locomotives out of use. All operational locomotives in the country today are broad gauge.