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Comparison of R and Excel in the Field of Data Analysis
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作者 Jue Wang 《Journal of Electronic Research and Application》 2024年第3期178-184,共7页
This research paper compares Excel and R language for data analysis and concludes that R language is more suitable for complex data analysis tasks.R language’s open-source nature makes it accessible to everyone,and i... This research paper compares Excel and R language for data analysis and concludes that R language is more suitable for complex data analysis tasks.R language’s open-source nature makes it accessible to everyone,and its powerful data management and analysis tools make it suitable for handling complex data analysis tasks.It is also highly customizable,allowing users to create custom functions and packages to meet their specific needs.Additionally,R language provides high reproducibility,making it easy to replicate and verify research results,and it has excellent collaboration capabilities,enabling multiple users to work on the same project simultaneously.These advantages make R language a more suitable choice for complex data analysis tasks,particularly in scientific research and business applications.The findings of this study will help people understand that R is not just a language that can handle more data than Excel and demonstrate that r is essential to the field of data analysis.At the same time,it will also help users and organizations make informed decisions regarding their data analysis needs and software preferences. 展开更多
关键词 EXCEL R language Data analysis Open source COMPARE Data management Advantages Disadvantages FUNCTION
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过敏原综合数据库COMPARE的介绍和应用 被引量:1
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作者 赵岚 高中山 《食品安全质量检测学报》 CAS 北大核心 2023年第2期43-49,共7页
随着分子生物学和基因组、蛋白组学技术的高速发展,越来越多的过敏原蛋白得到鉴定。为了提高对过敏原的研究及其在食品安全上的应用,很多机构都建立了不同类型的过敏原数据库。本文详细介绍了由美国健康与环境科学研究所(Health and Env... 随着分子生物学和基因组、蛋白组学技术的高速发展,越来越多的过敏原蛋白得到鉴定。为了提高对过敏原的研究及其在食品安全上的应用,很多机构都建立了不同类型的过敏原数据库。本文详细介绍了由美国健康与环境科学研究所(Health and Environmental Sciences Institute,HESI)协调组织国际合作团队建立的一个过敏原综合数据库COMPARE (COMprehensive Protein Allergen REsource),该数据库通过高通量序列分选算法结合专家人工审核方法,从各个公共蛋白质数据库、其他过敏原数据库以及相关文献中筛选过敏原,每年更新一次。此外还开发了基于FASTA算法的序列比对工具COMPASS (COMPare Analysis of Sequences with Software),允许用户进行实时序列比对。该数据库已广泛应用于新过敏原蛋白的鉴定以及蛋白质潜在致敏性的评价,对于食品安全管理和保障有重要参考价值。本文通过对COMPARE数据库的全面介绍,旨在提高该数据库在我国的应用价值,推动过敏原分子生物信息学的研究以及食品安全的发展。 展开更多
关键词 过敏原 数据库 COMPARE 生物信息学 序列比对 交叉反应 食品安全
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Study of spatial distribution for the active ingredient in ibuprofen tablet based on near-infrared micro-imaging technology 被引量:2
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作者 Dong Wang Yun Sheng Ding +3 位作者 Jin Li Cao Yue He Sheng Feng Ye Shun Geng Min 《Chinese Chemical Letters》 SCIE CAS CSCD 2011年第11期1335-1338,共4页
The NIR micro-images of ibuprofen tablets were collected in this research.Compare correlation imaging and principal component analysis(PC A) with histogram were applied to acquire the spatial distribution of ibuprof... The NIR micro-images of ibuprofen tablets were collected in this research.Compare correlation imaging and principal component analysis(PC A) with histogram were applied to acquire the spatial distribution of ibuprofen granule.The result indicated that a similar distribution trend can be acquired by both of the two methods mentioned above;the information of PC2 results from ibuprofen mainly since the correlation coefficient between PC2 loading vector and the NIR spectrum of ibuprofen is 0.9930.The result of PCA indicated that the information of PC2 results from ibuprofen mainly for both the low and the high content of ibuprofen in the tablets.The correlation coefficient between the data of the two PC2 loading vectors of the low and the high content of ibuprofen in the tablets is 0.9998,which indicates that the result of PCA is stable and reliable. 展开更多
关键词 Near-infrared micro-imaging Compare correlation imaging Principal component analysis IBUPROFEN Spatial distribution
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HOW DO THE RATES OF HALOPHILIC ATTACKS COMPARE WITH THE RATES OF PROTOPHILIC ATTACKS? 被引量:2
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作者 Xing Ya LI Ming Hu TU Xi Kui JIANG 《Chinese Chemical Letters》 SCIE CAS CSCD 1993年第5期411-414,共4页
The measured relative rates of halophilic and protophilic attacks (k_X/k_H) indicate that the rates of halophilic attacks are comparable in magnitude to those of protophilic attacks (deprotonations).
关键词 In HOW DO THE RATES OF HALOPHILIC ATTACKS COMPARE WITH THE RATES OF PROTOPHILIC ATTACKS LI
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Experimental Study on Pull-out Behavior of Different Geotextiles 被引量:1
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作者 周蓉 丁辛 《Journal of Donghua University(English Edition)》 EI CAS 2007年第4期497-499,共3页
The pullout testing of geosynthetics is essential for studying interface interaction in the soil-reinforcement system. In this paper, a new method for testing interface properties of geotextiles is proposed. The inter... The pullout testing of geosynthetics is essential for studying interface interaction in the soil-reinforcement system. In this paper, a new method for testing interface properties of geotextiles is proposed. The interface frictional characters of two kinds of geotextiles (woven and needle-punched nonwoven) are investigated through pullout test. Nonwoven specimen has more wide variety of displacement along length than that of woven under the same pressure because of their different extensibility. The greater the elongation and deformation of specimens, the more evident the variations of displacement along reinforcement from front to pullout end. The greater the normal pressure, the smaller the displacement of every position along length with the same pullout load. The study focuses on the effects of the tensile modulus and the difference of pullout response between woven and nonwoven geotextiles. 展开更多
关键词 GEOTEXTILE PULL-OUT COMPARE normal pressure tensile modulus
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Comparative Study on Chinese and English Flower Metaphors
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作者 彭艳 《海外英语》 2012年第12X期277-278,共2页
Based on the differences between Chinese and English culture,and the common knowledge of human beings on the outside world,the paper first compares Flower in both cultures,then covers their understanding of the whole ... Based on the differences between Chinese and English culture,and the common knowledge of human beings on the outside world,the paper first compares Flower in both cultures,then covers their understanding of the whole process of flower ranging from budding to withering,and the corresponding metaphorical expressions based the above-mentioned differences and different metaphors.The cognitive understanding of flower metaphors and their corresponding developing process in these two cultures are also discussed in the paper. 展开更多
关键词 FLOWER METAPHOR COMPARE development
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Contrastive Analysis of Intonation and Tone in Chinese and English
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作者 甘田 《海外英语》 2014年第10X期227-228,274,共3页
In English,intonation is the main research object of supra-segmental phonology,it refers to the changes of tone and pitch.English intonation is non-tone language which means the word meaning will not changed with the ... In English,intonation is the main research object of supra-segmental phonology,it refers to the changes of tone and pitch.English intonation is non-tone language which means the word meaning will not changed with the changing of the independent word's tone,while Chinese is Tone language,in which tone often determinates the meaning of word,different tones are representative of different meanings.Chinese language function exerts differently in tone and intonation,and it is a bit complicated compared with English. 展开更多
关键词 INTONATION TONE CHANGE COMPARE
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CLASSIFICATION AND COMPARISON OF WOOD DRYING MODELS
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作者 Chang Jianmin Dai Fangtian Northeast Forestry University 《Journal of Northeast Forestry University》 SCIE CAS CSCD 1993年第2期112-117,共6页
The Various models established by many scholar in the near years areclassified and compared between them.
关键词 WOOD drying. Model. Classify Compare.
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Asymptotic stability of port-hamiltonian systems with constant inputs
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作者 Liangcheng Cai 《Control Theory and Technology》 EI CSCD 2021年第2期227-235,共9页
In this paper, the asymptotic stability of Port-Hamiltonian (PH) systems with constant inputs is studied. Constant inputs are useful for stabilizing systems at their nonzero equilibria and can be realized by step sign... In this paper, the asymptotic stability of Port-Hamiltonian (PH) systems with constant inputs is studied. Constant inputs are useful for stabilizing systems at their nonzero equilibria and can be realized by step signals. To achieve this goal, two methods based on integral action and comparison principle are presented in this paper. These methods change the convex Hamiltonian function and the restricted damping matrix of the previous results into a Hamiltonian function with a local minimum and a positive semidefinite matrix, respectively. Due to common conditions of Hamiltonian function and damping matrix, the proposed method asymptotically stabilizes more classes of PH systems with constant inputs than the existing methods. Finally, the validity and advantages of the presented methods are shown in an example. 展开更多
关键词 Port-Hamiltonian systems Constant inputs Integral action Compare principle Asymptotic stability
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Agile Software Development Methodologies: Survey of Surveys
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作者 Malek Al-Zewairi Mariam Biltawi +1 位作者 Wael Etaiwi Adnan Shaout 《Journal of Computer and Communications》 2017年第5期74-97,共24页
Agile software design and development methodologies have been gaining rigorous attention in the software engineering research community since their early introduction in the mid-nineties in addition to being highly ad... Agile software design and development methodologies have been gaining rigorous attention in the software engineering research community since their early introduction in the mid-nineties in addition to being highly adopted by the software development industry. In the last 15 years, an excessive number of research studies have been conducted on agile methods, a great number of notable methods have been proposed and various surveys have been presented by many researchers. In this study, the authors intend to conduct a literature survey study of the surveys of the different agile methodologies ranging from January 2000 to December 2015 using an intuitive research methodology called “Compare and Review” (CR). Furthermore, these survey papers were classified into four major categories according to their area of study. Additionally, the newly proposed agile methodologies that have not been addressed yet in any other literature review were reviewed and compared in terms of where the changes that they proposed lay on the SDLC. 展开更多
关键词 AGILE Software Methods SURVEY COMPARE and REVIEW Research METHODOLOGY
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compare with与 compare to
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作者 顾祖良 《语言教育》 1989年第6期55-56,共2页
compare with 与 compare to 在使用时,有其各自的不同点,也有共同点,现分述如下: 一、两者的不同点 1.一般说来compare with 作“把……和……比较”解:强调比较两者(同类、性质相同)的不同处,是衡量优劣的意思,列如: (1)If we compare... compare with 与 compare to 在使用时,有其各自的不同点,也有共同点,现分述如下: 一、两者的不同点 1.一般说来compare with 作“把……和……比较”解:强调比较两者(同类、性质相同)的不同处,是衡量优劣的意思,列如: (1)If we compare the China of today with the China of yesterday.we see what a change we have effected. 展开更多
关键词 YESTERDAY today COMPARE to COMPARE with PARIS SPOKEN TIGER SOLDIER
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Brand Extension Comparative Analysis of Trends and Rayli Magazine
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作者 Linghu Kerui 《International Journal of Technology Management》 2014年第12期118-121,共4页
In recent twenty years, China fashion magazine developed rapidly. Brand extension has become an important means for the rapid development of the fashion magazines. This paper take the brand extension of fashion magazi... In recent twenty years, China fashion magazine developed rapidly. Brand extension has become an important means for the rapid development of the fashion magazines. This paper take the brand extension of fashion magazines as the research object, starting from the basic theory of brand extension, select the "Rayli" and "Trends" as the object of study, analysis the strategy for both brand extension, compare the similarities and differences, for the development of domestic fashion magazines as a reference. 展开更多
关键词 Rayli TRENDS Brand extension COMPARE
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PLC Functional Instruction in Programming of the Application
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作者 Jiayan SONG 《International Journal of Technology Management》 2015年第2期78-80,共3页
In this paper, the function characteristics of instruction are introduced, and the focus is on contact compare instruction and the characteristics of the transfer instructions. With the traffic lights control as an ex... In this paper, the function characteristics of instruction are introduced, and the focus is on contact compare instruction and the characteristics of the transfer instructions. With the traffic lights control as an example, this paper proposes the application of contact compare instruction and transfer instruction to program design method, making the program structure compact and statement concise. The control requirements are easily completed. Key words: Function Instruction; Programming; Traffic Lights; Contact Compare Instruction; Transfer 展开更多
关键词 Function Instruction PROGRAMMING Traffic Lights Contact Compare Instruction TRANSFER
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Research on VAM --Based on The Analysis of Practical PE Cases In China
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作者 Meng Xueying Liu Mingchao 《Review of Global Academics》 2014年第1期86-94,共9页
Valuation Adjustment Mechanism of PE in western capitalist countries' economic activity is a high-risk, high-yield investment financing. As a new import from at the beginning of entering into China, the law and pract... Valuation Adjustment Mechanism of PE in western capitalist countries' economic activity is a high-risk, high-yield investment financing. As a new import from at the beginning of entering into China, the law and practice of the exploration of the related theory have not stopped. This article integrates the actual case of China's enterprises to participate in the bet agreement.It proposes to bet on the agreement of the meanings, contents, elements, and introduces the related concept of contrast and analysis, bet agreement on hot issues existing in the practice. It also put forward personal views and Suggestions on legislation. 展开更多
关键词 VAM TERMS COMPARE risk andsuggestions
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Charm and Beauty——A Comparison of Two Aesthetic Categories in Chinese and Western Paintings
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作者 Wei Hongshan Guo Li 《Contemporary Social Sciences》 2018年第2期145-155,共11页
Aesthetics in China is different from that in the West which is centered on the logical approach to the concept of "beauty," and is highly typified by chewing, tasting, and pondering, a process full of intui... Aesthetics in China is different from that in the West which is centered on the logical approach to the concept of "beauty," and is highly typified by chewing, tasting, and pondering, a process full of intuition and contemplation. Instead of "beauty," "charm" is the central category in Chinese painting, presenting a different aesthetic system from that in the western world. 展开更多
关键词 aesthetic category in Chinese and western painting CHARM BEAUTY COMPARE
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A Comparative Study on Two Techniques of Reducing the Dimension of Text Feature Space
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作者 Yin Zhonghang, Wang Yongcheng, Cai Wei & Diao Qian School of Electronic & Information Technology, Shanghai Jiaotong University, Shanghai 200030, P.R.China 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2002年第1期87-92,共6页
With the development of large scale text processing, the dimension of text feature space has become larger and larger, which has added a lot of difficulties to natural language processing. How to reduce the dimension... With the development of large scale text processing, the dimension of text feature space has become larger and larger, which has added a lot of difficulties to natural language processing. How to reduce the dimension has become a practical problem in the field. Here we present two clustering methods, i.e. concept association and concept abstract, to achieve the goal. The first refers to the keyword clustering based on the co occurrence of 展开更多
关键词 in the same text and the second refers to that in the same category. Then we compare the difference between them. Our experiment results show that they are efficient to reduce the dimension of text feature space. Keywords: Text data mining
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Popular Female Appellation: the Compare Study of "meinv" and "Xiao jiejie"
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作者 魏依 《海外英语》 2019年第12期111-112,共2页
Female appellations are changing with time,which has attracted many attention from scholars.In the last century,"xiaojie"was very popular.The word"xiaojie"was then replaced by"meinv"becau... Female appellations are changing with time,which has attracted many attention from scholars.In the last century,"xiaojie"was very popular.The word"xiaojie"was then replaced by"meinv"because of its negative images.Nowadays,with the development of network buzzwords,the word"Xiao jiejie"gradually come into the public eye.In this paper,I will compare these two female appellations"meinv"and"Xiao jiejie"from four aspects:the introduction of origin and population,the characteristics of word structures,target users,and the pragmatics effects. 展开更多
关键词 FEMALE APPELLATION "Xiao jiejie" "meinv" COMPARE STUDY
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Analysis and Comparison of Adverse Reactions of Erythromycin and Azithromycin
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作者 SONG Lin 《外文科技期刊数据库(文摘版)医药卫生》 2021年第12期1076-1079,共6页
Objective: to study the adverse reactions of roxithromycin and azithromycin. Methods: among the patients investigated in our hospital, 200 cases were selected for the study. In terms of drug use, roxithromycin and azi... Objective: to study the adverse reactions of roxithromycin and azithromycin. Methods: among the patients investigated in our hospital, 200 cases were selected for the study. In terms of drug use, roxithromycin and azithromycin were respectively used in the two groups. Patients were selected in April 2019 and April 2020 to observe the adverse reactions. Results: the overall adverse reactions of azithromycin and roxithromycin were analyzed in 200 patients. Adverse reactions occurred in 10 patients after intravenous administration, compared with 6 patients after oral administration. Adverse reactions included nervous system, digestive system and gastrointestinal tract reactions. Digestive system reaction was the majority of adverse reactions, with a total of 7 cases and an incidence of 43.75%. In addition, all patients had more adverse reactions within 30 minutes of drug use. There were 11 persons, accounting for 68.75% of the total population. After a few days of drug use, the adverse reactions gradually decreased. After the adverse reactions occurred in the patients, 4 patients stopped taking drugs, 6 patients cooperated with antiallergic drugs, and 6 patients cooperated with antipyretic drugs. In terms of drug types, gastrointestinal reactions were more common in patients treated with azithromycin. Conclusion: in clinical practice, the incidence of adverse reactions of roxithromycin and azithromycin is not high, but according to the different types of drugs, different ways will lead to adverse reactions in patients, therefore, it is necessary to supervise the use method and dose of roxithromycin and azithromycin, to rational drug use. 展开更多
关键词 ROXITHROMYCIN AZITHROMYCIN adverse reactions rational application COMPARE
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How might this recession compare to 2008?
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作者 周越 《数理天地(高中版)》 2020年第5期49-49,共1页
According to the World Health Organization a vaccine for the Coronavirus maybe 18 months away,but the financial repercussions could last for five years.When it comes to the economy,2020 may feel a lot like a repeat of... According to the World Health Organization a vaccine for the Coronavirus maybe 18 months away,but the financial repercussions could last for five years.When it comes to the economy,2020 may feel a lot like a repeat of the 2008 Great Recession.Back then,deeply rooted problems in the banking system,coupled with an overheated real estate market,caused a major financial meltdown in the US. 展开更多
关键词 this RECESSION COMPARE
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追魂四式:asp木马无处可逃
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作者 齐天小候 《网上俱乐部(电脑安全专家)》 2004年第12期35-37,共3页
看点:揭露asp脚本木马的危害,同时给出了有效防范脚本木马的方法,以便大家加强网站安全。
关键词 ASP木马 网站安全 cmdasp.asp “海洋顶端” 网络安全 FTP客户端 BEYOND Compare2”软件
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