Powerful CSV processing with kdb+
Comma-separated text files (CSV) are the most fundamental format for data processing. All programming languages and software that support working with relational data, also provide some level of CSV handling.
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What is an Array?
In a recent e-mail [1], John Scholes reminded me of his last encounter with Ken Iverson,...
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Powerful CSV processing with kdb+
Comma-separated text files (CSV) are the most fundamental format for data processing. All programming languages and software that support working with relational data, also provide some level of CSV handling.
Volume 26, No. 4
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Second Childhood
Editor’s note The story below of what happened to The Childcare Company recounts events which have...
Volume 26, No. 2
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Impending kOS
It began badly. We were walking along the South Downs Way in early summer, the sun glittering on...
Volume 25, No. 2&3
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What is an Array?
In a recent e-mail [1], John Scholes reminded me of his last encounter with Ken Iverson,...
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LatestPi for Brains
Romilly Cocking at BAA 2016 (20/05/2016) Take a look at neural network experiments running in APL on the multi-core Raspberry Pi 3 and the new £4 Raspberry Pi Zero.
Powerful CSV processing with kdb+
Comma-separated text files (CSV) are the most fundamental format for data processing. All programming languages and software that support working with relational data, also provide some level of CSV handling.
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The doctor and the doc
Ken Iverson spent his life writing and talking about q’s ancestor language APL.
Q has been all about implementation and performance. Now the documentation is catching up.
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J-ottings 59 Love Actuarily…
In my experience of demonstrating APL and later J to potential customers, the one group for which...
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Taming statistics with limited-domain operators
Most students of statistics are overwhelmed by the sheer number of functions and procedures...
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Conquering recursion
This article presents a set of combinator patterns which can be used to decompose recursive...
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