with r and ruby

... use the standard libraries and any other libraries other than the Ruby core, you will need to require them in your program: require 'base64' In addition to the standard libraries, you ... book (and also in Ruby programming), are arrays and hashes. Arrays are indexed containers that hold a sequence of objects. You can create arrays using square brackets ( []) or using the Array ... of other unofficial R user interfaces, such as R Commander and RStudio. RStudio has a very nice R environment that runs on the server but is acces sible through the browser. Another alternative...

Ngày tải lên: 15/02/2014, 07:20

... book (and also in Ruby programming), are arrays and hashes. Arrays are indexed containers that hold a sequence of objects. You can create arrays using square brackets ( []) or using the Array ... professionals use Safari Books Online as their primary resource for research, problem solving, learning, and certification training. Safari Books Online offers a range of product mixes and pricing ... strength for building desktop graphical user interfaces. Among the other more popular Ruby UI toolkits (in case you want to get serious later on) are FXRuby, WxRuby, qtRuby, and Tk. If you’re...

Ngày tải lên: 08/03/2014, 18:20

Ngày tải lên: 05/05/2014, 13:27

Ngày tải lên: 21/06/2014, 17:20

... black and white drawing. Some like to use heavier lines in darker areas and thinner lines closer to light. Others may use a more uniform line but then render their texture with extensive and sometimes ... Layers list (just before the Layers header). You now have a fresh ink layer to work over your rough draft. Figure 10-1: Create a new layer for inks in the New Layer dialog box. 188 Part III: Refining ... a group of markers of various sizes and shapes. (Examples of lines drawn with each type of marker are shown in Figure 10-5.) The options in the Marker tool’s menu are ߜ Round Marker: The first...

Ngày tải lên: 27/08/2012, 14:31

... inhalation and intravenous antibiotics). Microbial counts of P. aeruginosa, lung function measurements, and inflammatory markers were determined before and after treatment. Results: The sugar inhalation ... 595-599. 16. Sofer D, Gilboa-Garber N, Belz A, Garber NC: “Subinhibitory” erythromycin represses production of Pseudomonas aeruginosa lectins, autoinducer and virulence factors. Chemotherapy 1999; ... authors declare no conflict of interest. This study was registered at the University of Hamburg, Germany. References 1. Davis PB, Drumm M, Konstan MW: Cystic fibrosis. Am J Respir Crit Care...

Ngày tải lên: 03/11/2012, 11:48

... parrot from Australia. rhea The rhea is a large, flightless bird from South America. roadrunner The roadrunner is a bird is a fast running bird that rarely flies. robin ... radish A radish is a sharp- tasting vegetable that grows underground. raisin Raisins are dried grapes. raspberry Raspberries are a type of edible berry that grows on a prickly ... radio A radio lets you hear broadcast music and talk shows. refrigerator A refrigerator is a machine that keeps food cold. remote control A remote control lets you operate...

Ngày tải lên: 16/04/2013, 23:27

... NEIGHBORHOOD PERIOD 14. PRESENT PERFECT WITH SINCE AND FOR A. Revision: The Present Perfect Tense 1. Form - Affirmative: S + has/have +V3/ed…. - Negative: S + has/have + not + V3/ed… - Interrogative: ... FOR: - For + a period of time (FOR + khoảng thời gian:) For two hours/a week/20 minutes/50 years/five days/a long time/six months/ages He has worked here for a year. (He began working here ... week. 3 Jorge (read)____________ the newspaper for an hour. 4 ______ Maria (l earn)_____________ English since grade 6? 5 He (swim)_____________ for half an hour. 6 How long ____________ Mr. Johnson...

Ngày tải lên: 08/07/2013, 01:27

Ngày tải lên: 17/08/2013, 10:40

Ngày tải lên: 21/08/2013, 14:10

Ngày tải lên: 22/08/2013, 14:52

... (+ O) (+ prep) + V-ing EXERCISE 1. “Please type this letter for me” The director said to his secretary. …………………………………………………………………………. 2. “Lie down on the floor” The robbers said to everybody at ... Said the Trade Union Officer. ……………………………………………………………………………. 8. “Don’t touch that wire with your wet hand.” said the teacher. …………………………………………………………………………… Prepared by Nguyễn Thị Ngọc Trân 26. ... you be back early?” he asked her. ………………………………………………………………………………………… Prepared by Nguyễn Thị Ngọc Trân REPORTED SPEECH Change the following sentences into reported speech: 1. “Come and see me if...

Ngày tải lên: 05/09/2013, 04:10

Ngày tải lên: 05/09/2013, 16:10

... reported speech with infinitive and gerund Exercise 1. Rewrite each of the following sentences in reported speech.Using advise, beg, introduce, invite, offer, order, promise, remind, ... borrowed your car for some hours” the man said. (admitted)  16. “ I’m sorry I damaged your tape recorder, Mike.” Said Bob.  Bob apologized 17. “ You damaged my camera’ said Jane to Henry. ... appropriate. 1. The girl said to Jim, “ Would you give your book to Mary?” ( ask, tell order)  The girl 2. The little said to her father, “ Daddy, I really like tricycle. Can we buy it?” (require,...

Ngày tải lên: 24/10/2013, 01:11

Ngày tải lên: 25/10/2013, 06:20

Ngày tải lên: 25/10/2013, 06:20

Ngày tải lên: 01/11/2013, 12:20

Ngày tải lên: 01/11/2013, 14:20

Ngày tải lên: 01/11/2013, 14:20