Turn your R code into packages that others can easily download and use. This practical book shows you how to bundle reusable R functions, sample data, and documentation together by applying the package development philosophy used in the package known as the tidyverse (and beyond). In the process, you'll work with devtools, usethis, roxygen2, and testthat, a set of R packages th...(展开全部)

Turn your R code into packages that others can easily download and use. This practical book shows you how to bundle reusable R functions, sample data, and documentation together by applying the package development philosophy used in the package known as the tidyverse (and beyond). In the process, you'll work with devtools, usethis, roxygen2, and testthat, a set of R packages th...(展开全部)

♥作者简介 乔伊斯·卡罗尔·欧茨，出生于1938年，美国当代作家，多届诺贝尔文学奖热门人选。自1963年出版首部短篇小说集《北门畔》以来，迄今已出版一百余部作品，包括长篇小说、短篇小说集、诗集、剧本和文学评论等。代表作有《人间乐园》（1967）、《他们》（1969）、《奇境》（1971）、《黑水》（1992）、《我们是马尔瓦尼一家》（1996）、《大瀑布》（2004）等。其中，《他们》荣获美国国家图书奖，《黑水》曾被提名普利策奖。 ♥译者简介 杨柳川，成都大学教师，副教授。至今已发表、出版文学译作百万余字，包括四部长篇、数十篇中短篇和系列绘本，作品主要见于《译林》《英语世界》等杂志。

Dinah Whitcomb seemingly has everything. A loving and successful husband, and a smart, precocious young son named Robbie. One day, their worlds are shattered when Dinah is attacked and Robbie is taken in a mall parking lot. Dinah, injured, attempts to follow, but is run over by the kidnapper's van, mangling her body nearly beyond repair. The kidnapper, a part-time Preacher nam...(展开全部)

♥作者简介 乔伊斯·卡罗尔·欧茨，出生于1938年，美国当代作家，多届诺贝尔文学奖热门人选。自1963年出版首部短篇小说集《北门畔》以来，迄今已出版一百余部作品，包括长篇小说、短篇小说集、诗集、剧本和文学评论等。代表作有《人间乐园》（1967）、《他们》（1969）、《奇境》（1971）、《黑水》（1992）、《我们是马尔瓦尼一家》（1996）、《大瀑布》（2004）等。其中，《他们》荣获美国国家图书奖，《黑水》曾被提名普利策奖。 ♥译者简介 杨柳川，成都大学教师，副教授。至今已发表、出版文学译作百万余字，包括四部长篇、数十篇中短篇和系列绘本，作品主要见于《译林》《英语世界》等杂志。

1912. Webster was a grandniece of Mark Twain. She was interested in social work, especially the fields of childcare and prison reform, but her main occupation was writing. She wrote a number of short stories and novels for younger readers including her most famous work, Daddy- Long-Legs. In Daddy-Long-Legs Jerusha Abbot is an orphan with a wicked pen and penetrating insight. La...(展开全部)

1912. Webster was a grandniece of Mark Twain. She was interested in social work, especially the fields of childcare and prison reform, but her main occupation was writing. She wrote a number of short stories and novels for younger readers including her most famous work, Daddy- Long-Legs. In Daddy-Long-Legs Jerusha Abbot is an orphan with a wicked pen and penetrating insight. La...(展开全部)

1912. Webster was a grandniece of Mark Twain. She was interested in social work, especially the fields of childcare and prison reform, but her main occupation was writing. She wrote a number of short stories and novels for younger readers including her most famous work, Daddy- Long-Legs. In Daddy-Long-Legs Jerusha Abbot is an orphan with a wicked pen and penetrating insight. La...(展开全部)