Altair Cheat Sheet Python: Data Visualization Reference
Altair Cheat Sheet Python
01 Build a chart
1. Import + general pattern
import altair as alt
chart = (
alt.Chart(data).mark_…()
.encode(x=…, y=…, color=…)
.transform_…(…).properties(…)
.interactive()
)
2. Choose a chart type
mark_bar bars / aggregated comparison
mark_line trends over an ordered axis
mark_circle scatter plots
mark_area filled trends / totals
mark_rect heat maps
mark_arc pie or donut charts
mark_boxplot distribution summaries
mark_geoshape
Essential Computer Science & Information Technology Handbook
Computer Systems and Software Basics
1. A computer is an electronic machine that can store, process, and display data. It helps in performing different tasks like calculations, writing, and browsing.
2. System software is a type of software that helps the computer work properly. It controls and manages the hardware and basic functions, like the operating system.
3. Application software is a program designed to help users perform specific tasks, like writing documents, playing games, or editing photos.
Read MoreInternational Labour Standards: The Foundation of Decent Work
The Role of International Labour Standards
In 1919, the nations that signed the Treaty of Versailles created the International Labour Organization (ILO) because poor working conditions, injustice, and hardship threatened peace and social stability. To address this, the ILO created international labour standards through Conventions and Recommendations developed by governments, employers, and workers.
The ILO’s founders understood that the global economy needed clear rules so that economic progress
Read MoreThermal Power Plant Draught and Coal Handling Systems
1. Explanation of Draught System
Draught System in Thermal Power Plant:
- Draught is the pressure difference that causes the flow of air into the furnace and flue gases out of the boiler.
- Its main purpose is to supply sufficient oxygen for proper combustion of fuel and remove the resulting flue gases.
- Natural Draught: It is produced by a tall chimney due to the difference in density between hot flue gases and outside air.
- Forced Draught: A forced-draught (FD) fan forces fresh air into the furnace under
Controlled Release Drug Delivery Systems and Design
Approaches to Design Controlled Release Formulations
These are the methods or processes by which we design Controlled Release Drug Delivery Systems (CRDDS):
- 1. Diffusion-controlled release
- 2. Dissolution-controlled release
- 3. Ion-exchange controlled release
1) Diffusion-Controlled Release System
Diffusion is the process of movement of drug molecules from a higher concentration to a lower concentration during absorption. For CRDDS, we can control the diffusion process by using polymers. Before polymer
Read MoreHospital Pharmacy Management and Clinical Practice
Classification and Organization of Hospitals
Hospitals are classified based on clinical specialization, ownership, bed strength, and level of care.
Clinical Basis
- Medicine: Internal medicine, pediatrics, dermatology, psychiatry, cardiology.
- Surgery: General surgery, orthopedics, neurosurgery, ophthalmology, ENT.
- Maternity & Gynecology: Specialized in obstetrics and women’s health.
- Specialty/Disease-Specific: Tuberculosis, oncology, and psychiatric care.
Non-Clinical Basis (Ownership and Control)
- Government/
Geography Study Notes: Water, Agriculture, and Resources
Water Pollution and Conservation in India
1. Causes of Water Pollution and Conservation Measures
Water pollution is the contamination of water by harmful substances, rendering it unfit for human use and aquatic life.
Reasons for Water Pollution
- Domestic sewage: Untreated wastewater discharged into rivers and lakes.
- Industrial waste: Chemicals and toxic substances from factories.
- Agricultural runoff: Fertilisers and pesticides entering water bodies.
- Religious and cultural activities: Waste deposited in
Comprehensive Machine Learning Algorithms Tutorial
Linear Regression and Working Principle
Linear Regression is a supervised learning algorithm used to predict a continuous dependent variable from one or more independent variables.
For Simple Linear Regression, the relationship between x and y is represented by:
where:
- y = predicted value
- x = input feature
- b0 = intercept
- b1 = slope
Calculation of Slope
Intercept
Therefore, the regression equation becomes:
Working
- Collect training data.
- Assume a linear relationship between input and output.
- Calculate the regression
Pros and Cons of Wildlife Tourism, Zoos, and Money
Traveling to Exotic Places: Pros and Cons
Nowadays, more and more people decide to travel to exotic countries to watch wild animals in their natural environment. This form of holiday is becoming very popular worldwide. It has many advantages, but it also has some disadvantages.
The Benefits of Wildlife Tourism
- Educational Value: Seeing beautiful animals live, rather than on television or in a zoo, is an amazing adventure.
- Economic Impact: Exotic tourism provides jobs for local people and brings money
Indian Constitutional Law and Legal System Fundamentals
Powers and Functions of the President of India
Weightage: 7.5 Marks
The President of India is the constitutional head of the Union Executive. The executive power of the Union is vested in the President, who exercises it according to the Constitution.
1. Executive Powers
- The President appoints the Prime Minister.
- Other ministers are appointed by the President on the advice of the Prime Minister.
- The President appoints important constitutional authorities such as the Attorney General, Governors, and the