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CLASS XII – INFORMATICS PRACTICES | REVISION

                                                              Revision Worksheet: Pandas loc[] and iloc[] Create the following DataFrame & write the output of each statement. Index Name Marks Grade S1 Aman 85 B S2 Riya 92 A S3 Kabir 78 C S4 Neha 88 B S5 Arjun 95 A Predict the Output Q1.   print(df.loc['S3']) Output: _____________________________________________________________________ Q2.   print(df.iloc[1:4, 0:2]) Output: _____________________________________________________________________ Q3.   print(df.loc['S2':'S4', ['Name', ...
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GRADE XI - Fundamentals of Interface Design

  Grade XI – Design Thinking & Innovation (848) Fundamentals of  Interface Design Long Answer Type Questions – Q1. Describe how page layout impacts user experience in interface design. Answer: Page layout refers to the arrangement of text, images, buttons, menus, and other visual elements on a website or application. A well-designed page layout improves user experience by making information easy to find, understand, and interact with. The following factors contribute to an effective page layout: Visual Hierarchy: Important information is highlighted using appropriate font sizes, colours, and positioning to guide users' attention. Alignment: Proper alignment creates an organised and professional appearance. Spacing: Adequate spacing between elements prevents overcrowding and improves readability. Consistency: Using similar colours, fonts, and navigation patterns across pages helps users understand the interface. Responsi...
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ITERITEM & ITERROWS IN DATAFRAME

  df.iterrows() FUNCTION import pandas as pd d={2015:{'q1':34500, 'q2':56000, 'q3':47000, 'q4':49000}, 2016:{'q1':44500, 'q2':46100, 'q3':57000, 'q4':59000}, 2017:{'q1':54500, 'q2':51000, 'q3':47000, 'q4':58500}} df=pd.DataFrame(d) for (row,rowseries) in df.iterrows(): print("quarter:",row) print("revenue") print(rowseries) iteritems() FUNCTION import pandas as pd hm_past3={2018:{'English':98,'Physics':99,'Chemistry':100, 'Biology':100,'Maths':100,'CS':100}, 2019:{'English':99,'Physics':97,'Chemistry':99, 'Biology':100,'Maths':100,'CS':99}, 2020:{'English':97,'Physics':98,'Chemistry':98,'Biology':98,'Maths':99,'CS':96}, } df1=pd.DataFrame(hm_past3) for i, col in df1.iteritems(): print("-----------------------") print(col...
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DTI XI - FUNDAMENTALS OF INTERFACE DESIGN | NOTES_1

  FUNDAMENTALS OF  INTERFACE DESIGN USER EXPERIENCE AND ERGONOMICS 1. What is User Experience? User Experience (UX) refers to the overall experience, feelings and perceptions of a user while interacting with a product, service, system or environment . A designer should not think only about how a product looks. The designer must also consider: Is it easy to use? Is it comfortable? Can the user understand how to use it? Does it solve the user's problem? Is it safe? Does the user enjoy using it? Does it meet the user's actual needs? Therefore: Good design focuses not only on the product but also on the experience of the person using the product.   2. Understanding UX Through an Example Consider two school bags. Bag A looks very attractive but: has uncomfortable straps, is difficult to open, has poorly arranged compartments, becomes painful to carry. Bag B has a simple appearance but: distributes weight comfortably, has padded adjustable st...
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