It is also a very peculiar species, with many unique and remarkable characteristics. Ok, so like my science teacher wants us to print out the seven levels of classification for an interesting animal, I chose the Red Panda. Ailurus fulgens red panda. As their name suggests, they are related to the larger and more famous Giant Panda (although the exact closeness of their connection still remains uncertain to science), along with also … so you have to do that first: df = df.groupby(["Product Name;"]).sum() This sets the product name column as index of the df so change your product_data column selection to this: Chordata: information (1) Chordata: pictures (15057) Chordata: specimens (6829) Chordata: sounds (709) Subphylum Vertebrata vertebrates. Another lesser-known species, the fossa So typically, the different bars represent different categories from a categorical variable. To start, prepare your data for the line chart. We can explicitly define the grid, the x and y axis scale and labels, title and display options. Our website provides access to zoo, animal, plant, conservation, and veterinary information resources. Now that you know how to handle “no data” values, recreate the dataframe once more by including a value for the parameter na_values. Add one row to pandas DataFrame. The pandas DataFrame class in Python has a member plot. After importing the file, we will print the first 5 rows of the dataset using the .head() function. Sources: Integrated Taxonomic Inventory System (2017), Hu et al. Animalia: information (1) Animalia: pictures (20673) Animalia: specimens (7109) Animalia: sounds (722) Animalia: maps (42) Phylum Chordata chordates. Don't become Obsolete & get a Pink Slip the panda is a bear; the koala is not, despite often being incorrectly referred to as a "koala bear". However, a unified conclusion and recognition was not yet come to being. Meta (80-84% C) 2. comment. Figure 7: Bar-Chart Pandas Visualization. Do you know what makes Python Pandas Unique? Eumetazoa: pictures (20647) Eumetazoa: specimens (7100) Eumetazoa: sounds (722) Eumetazoa: maps (42) Bilateria bilaterally symmetrical animals. Due to its special physical form and structure as well as its peculiar character, the biologists have not ever got a unified recognition on the classification of giant panda. Vegetables + Lamb's Lettuce. The "Giant" Pandas are hardly "Giants". Therefore, giant panda is just a large-size raccoon. The evolution of giant panda, according to studies of paleontologists Huang Wanbo et al, is approximately divided into the primal stage, the pullulating stage, the flourishing stage and the declining stage. Follow DataFlair on Google News & Stay ahead of the game. Kingdom Animalia animals. With the help of .hist() function, we can plot a histogram based on the parameters. Visualization of data is important to understand the nuances of your dataset. A pie plot is a proportional representation of the numerical data in a column. Many bears relish honey, and the sun bear is sometimes called the “honey bear” because of this. It would take about forty (40) giant pandas to weigh as much as one elephant. We use cookies on Kaggle to deliver our services, analyze web traffic, and improve your experience on the site. Result Processing Project uses a built-in CSV file and analyzes it using Pandas and Matplotlib. The classification of Giant Panda. Create Your First Pandas Plot. SEYLER’S CHART 12. 2040. Required fields are marked *, Home About us Contact us Terms and Conditions Privacy Policy Disclaimer Write For Us Success Stories, This site is protected by reCAPTCHA and the Google. We will look at data regarding coronary heart disease (CHD) in South Africa. We can set the x and y axis. Let’s now see the steps to plot a line chart using Pandas. Pandas has a built-in function for exactly this called the lag plot. Notebooks. The classification of the red panda has had scientists scratching their heads for years. A bar chart can be created in Seaborn by calling the countplot() function and passing the data. Related course: Data Visualization with Matplotlib and Python; Line chart example The example below will create a line chart. This will not be a Django tutorial, and I am taking some shortcuts here. Animalia: information (1) Animalia: pictures (20673) Animalia: specimens (7109) Animalia: sounds (722) Animalia: maps (42) Eumetazoa metazoans. These are the examples Here is an example of a dataset that captures the unemployment rate over time: Step 2: Create the DataFrame . We will demonstrate a bar chart with a variable from the breast cancer classification dataset that is comprised of categorical input variables. search close. Let's assume I have pandas dataframe which has many features and I am interested in two. Communities. After decades of its managed breeding program, the center is tackling the challenge of reintroducing breeding populations to the wild ; Other appearances. Protecting the Panda: The giant panda has few predators other than humans. Order: Carnivora Not all members of Carnivora eat meat (pandas eat almost nothing but bamboo), but all have well-developed teeth for shredding foods. Your email address will not be published. However the bear school considers that giant panda shall be classified into the bear family, and is a kind of highly specialized bear. How Tall and Heavy are Giant Pandas? Giant pandas' paws have five "fingers" facing forward and one "thumb" — an enlarged bone at the heel of the paw used for gripping bamboo, climbing trees, etc. How to call an external command? Perennial Flowers + Moneyplant. Northstar Tart Cherry. Hear animal sounds for animals like anteaters, dolphins, frogs and more. Those are the two columns I'm looking to calculate the correlation coefficient. Texas Redbud. And the length of each bar represents some value of some metric for those categories. Red Panda ( Ailurus fulgens ) Classification, nomenclature, taxonomic & evolutionary history, cultural history. Some primordial structural modes were seen within the skeletal and muscular systems. comment. pandas.DataFrame.plot.scatter¶ DataFrame.plot.scatter (x, y, s = None, c = None, ** kwargs) [source] ¶ Create a scatter plot with varying marker point size and color. Giant Panda has long been living in the dense bamboo woods of the east edge of the Qingzang Highland in west China, leading a certain 'hermit-like' life. Class: Mammalia (Linnaeus, 1758) - mammals. Crookneck Squash. Your dataset contains some columns related to the earnings of graduates in each major: "Median" is the median earnings of full-time, year-round workers. I need bar plot grouped by feature1 and stacked by count of rows with each value of feature2. PROVIDENCE, R.I., Dec. 29, 2020 /PRNewswire/ -- EpiVax, Inc. ("EpiVax") today provides an update on the advancement of the company's peptide … code. Early Elberta Peach . When red pandas were first discovered, they were placed in the bear family, Ursidae. Per- hydrous(>5.8% of H) 2. Therefore, the pie chart would be indecipherable. Learn … A boxplot is basically a five number summary of the data. The small dots are the outliers of the data. Plot a Line Chart using Pandas. Can you look it up because I can not find it. In late Miocene, the ancient bears evolved into the present lineage of American Bears. Panda remains in tomb date to c. 4,000 years old (from Archaeology News 2005) Tomb located in central China; Contained a giant panda skeleton and human remains; Other neolithic sites suggest hunting of pandas by humans (Wu & Zhou 2005) Pandas "prized" in early Chinese history. Find quick information and fun facts with these 1-page easy resources about animals from A to Z. The name panda is used for two mammals that live in Asia: the giant panda and the lesser panda, or red panda. We can plot a pie chart with the help of .plot.pie function. 1012. Animalia: information (1) Animalia: pictures (20673) Animalia: specimens (7109) Animalia: sounds (722) Animalia: maps (42) Eumetazoa metazoans. Question: What is the classification of a panda? I would like to calculate the correlation coefficient between two columns of a pandas data frame after making a column boolean in nature. The chimpanzee is … Due to its special physical form and structure as well as its peculiar character, the biologists have not ever got a unified recognition on the classification of giant panda. 88. 3 -114.57 33.64 14.0 1501.0 337.0 515.0 226.0 3.1917 73400.0 1263. Chimpanzee Classification. Small pandas and cubs are vulnerable to predation by leopards. Today, a huge amount of data is generated in a day and Pandas visualization helps us to represent the data in the form of a histogram, line chart, pie chart, scatter chart etc. The goal is to show you how to start using these tools together to quickly display some data. Adding new column to existing DataFrame in Python pandas . The Giant Panda is a species of bear that is found in the mountains of central and western China. plot. It can be downloaded here. Here, we use .box function to plot a box plot graph. Sichuan is the natural home of the precious pandas and the best place to spend half day to visit those chubby bears. Giant panda clip - 2008, BBC 4 minute clip of a giant panda doing handstands in the forest. Adult giant pandas have a length of 160 to 180 centimeters (5 1/4 to 6 feet). Sub hydrous(< 4% of H) Disadvantages Complex naming Inadequate classification for low rank coals Applicable only to British Carboniferous Coal 11. Data. The .scatter function lets us plot a scatter graph. Start in the morning to visit the international known Pandas Breading Center, a cuddly symbol of China. The increase in the points of intersection increases the darkness of the color of the hexagon. The Paralilrus evolved directly to red panda that we see today, which survived and is living around Himalaya Mountains and Hengduan Mountains. The systematic evolution relationship of giant panda, after debate of different schools as well as the studies of paleontology, molecular biology and bio-chemistry, has been roughly discovered: In Oligocene that is about 26 million years ago, the arctoid and the ancient bears have already diverged from their common carnivore ancestor. Booking a Chengdu Panda Tour can get you close to a panda, you can even volunteer and feed her. Since 100 years ago, the scientists have done a lot of research on the morphologic anatomy, fossil and behaviors of giant panda and yet no conclusion was drawn. Last up is beautiful Mount Emei. Dataset. Pandas Visualization makes it really easy to create plots out of a pandas dataframe and series. Habitat. Plot number of occurrences in Pandas dataframe (2) 0. However, molecular studies indicate the giant panda is a true bear, part of the family Ursidae. The example below shows a bubble chart using a column of the DataFrame as the bubble size. Giant Panda has long been living in the dense bamboo woods of the east edge of the Qingzang Highland in west China, leading a certain 'hermit-like' life. We will just plot one variable, in this case, the first variable which is the age bracket. table_chart. Specifying column names. Encyclopedia of Life; Ailurus fulgens red panda. Kingdom Animalia animals. The red panda is also known as the lesser panda. Plotting Bar charts using pandas DataFrame: While a bar chart can be drawn directly using matplotlib, it can be drawn for the DataFrame columns using the DataFrame class itself. code. These pages are part of the San Diego Zoo Global Library website. We can create a hexagonal chart with the help of .plot.hexbin function. Animal Sounds Animal Sounds. Step 1: Prepare the data. To start, prepare your data for the line chart. In China, it is a national treasure, and for WWF the panda has a special significance since it has been the organization's symbol since 1961 when WWF was formed. import sklearn as sk import pandas as pd Binary Classification. Chengdu is China's pandas capital and we know the best time to see normally dozing pandas. We will demonstrate a bar chart with a variable from the breast cancer classification dataset that is comprised of categorical input variables. In recent years, the scientists have made some progress through bio-chemical and molecule-biological research, and pushed the classification study of giant panda to a further stage of development. Courses. The pie chart does not 'know' that you want all items with same product name grouped and summed over in your chart. Got it. Let’s now see the steps to plot a line chart using Pandas. The original table had two columns: a Group Column with one of two treatment groups, now boolean, and an Age Group. This gives us the graph for a particular column, in this case, “median_income”, and the density corresponding the various values of the column values. Class: Mammalia All mammals have hair, are able to regulate their body temperature, and females can produce milk. "P25th" is the 25th percentile of earnings. Pandas: The Journey Home - 2015, National Geographic The film follows the Wolong Panda Center in China. search close. scatter (x = "a", y = "b", s = df ["c"] * 200); See the scatter method and the matplotlib scatter documentation for more. And if you found a more interesting animal than please, please, please tell me what animal is and list the seven levels of classification for that animal. auto_awesome_motion. Giant panda, also known as the giant panda bear, is a unique animal that we see almost every day on the National Geographic TV or in movies or perhaps we have seen it ourselves during a tour in China. Here is an example of a dataset that captures the unemployment rate over time: Step 2: Create the DataFrame . Chengdu Panda Base is a non-profit research and breeding facility for giant Chengdu pandas and other rare animals. (So that there will be three stacks each with two bars). More. The giant panda is perhaps the most powerful symbol in the world when it comes to species conservation. The scientific name for chimpanzees is 'Pan troglodytes.' In late Miocene that is 12 million years ago, the primal arctoid has evolved into two lineages: Primal Bears and Parailurus. The project is a brain-child of Ms. Sushmita Ghosh and contributed by her for class 12 IP students.. IP project for class 12 students prepared using Python Pandas and CSV files. Hope, you liked it! The nature of the co-occurring symptoms will dictate the necessary assessments, which may include MRI scan, lumbar puncture, electroencephalogram or other diagnostic tests. We will look at data regarding coronary heart disease (CHD) in South Africa. pandas.DataFrame.plot.pie¶ DataFrame.plot.pie (** kwargs) [source] ¶ Generate a pie plot. The classification of Giant Panda. When red pandas were first discovered, they were placed in the bear family, Ursidae. We will just plot one variable, in this case, the first variable which is the age bracket. Baby Panda's Art Class is in session! Next, we will import data from a csv file. Courses. The raccoon school emphasizes on the similarity between giant panda and red panda, and the red panda has already been confirmed as member of raccoon family. One day tour visiting the adorable pandas as your first sight of Chengdu, afternoon get on an exciting exploration of the Jinsha Archeological Site Mesuem. DEWEY DECIMAL CLASSIFICATION (DDC) (18th Edition) (Tables and Schedules) Forest Press, Inc., 1971. It is designed for a machine learning classification task and contains information about medical appointments and a target variable which denotes whether or not the patient showed up to their appointment. They weigh up to 150 kg (330 lb) in captivity. If no column reference is passed and subplots=True a pie plot is drawn for each numerical column independently. auto_awesome_motion. Big leaf Maple. All these five Kingdoms are shown in bellow chart; Whittaker’s Five Kingdom Classification – Five Kingdom Classification Chart. It was founded in 1987, and it is located in Chengdu, Sichuan, China. You can use .hist(), .line , .scatter , .box,  plot.hexbin, .plot.pie, .kde functions to plot respective charts. Arrive to see them when most active and feeding. table_chart. (2020) We discussed each function with the help of an example. Thank you sooooo very much! Habitat: where do they live? Twitter. longitude latitude housing_median_age total_rooms total_bedrooms population households median_income median_house_value A bar chart can be created in Seaborn by calling the countplot() function and passing the data. Can you look it up because I can not find it. the panda is a bear; the koala is not, despite often being incorrectly referred to as a "koala bear". Ok, so like my science teacher wants us to print out the seven levels of classification for an interesting animal, I chose the Red Panda. In the afternoon be driven to Sanxingdui Museum to explore the mysterious ancient Shu Kingdom. And, how has it evolved into the present giant panda? Recommended Reading – 10 Amazing Applications of Pandas. But first, we will make a new dataset which is smaller and has less values to represent, unlike our previous dataset. arrow_back. An example of converting a Pandas dataframe to an Excel file with a column chart using Pandas and XlsxWriter. Ants, bees, seeds of trees, roots, nuts, berries, insect larvae such as grubs, and even the dainty dogtooth violet are eaten. Using the plot instance various diagrams for visualization can be drawn including the Bar Chart. 1524. Home. a chart or graph that presents categorical data with rectangular bars with heights or lengths proportional to the values that they represent. Otherwise, from the morphologic anatomy, giant panda has a lot of similarity with red panda, both of the two species are rather fat, the structure of the cranium, the teeth and the front pals are similar, the face has black-white patterns, the four limbs are black, there are condyles over the tooth crown, and in the pal the additional sesamoids make up the grasping structure. each morphologic characteristic of giant panda indicates that it is only a species of highly specialized bear. Red pandas are an endangered species. Taxonomy Classification. %matplotlib inline import pandas as pd import matplotlib.pyplot as plt fruits = pd.read_table('fruit_data_with_colors.txt') fruits.head() Figure 1 Each row of the dataset represents one piece of the fruit as represented by several features that are in the table’s columns. import pandas as pd l=[['Ankit',72,65,78],['Mohit',60,67,65],['Shreya',80,86,83]] df=pd.DataFrame(l) print(df) Next section of python pandas IP class 12 will focus on specifying columns. View Active Events . Pandas is an open source high-performance, easy-to-use library providing data structures, such as dataframes, and data analysis tools like the visualization tools we will use in this article. 88. Location . NumPy, Pandas, and Matplotlib. More. Today, a huge amount of data is generated in a day and Pandas visualization helps us to represent the data in the form of a histogram, line chart, pie chart, scatter chart etc. Who is on earth the ancestor of giant panda? expand_more. End the day strolling through the old street of Jinli or Kuai-Zhai Lanes. 1066. The giant panda is perhaps the most powerful symbol in the world when it comes to species conservation. They consider that a lot of important aspects of giant panda are similar with the bear, and its basic body structure belongs to that of bear family. Animal Bytes Animal Bytes. The .line function gives a line plot. While its numbers are slowly increasing, the giant panda remains one of the rarest and most endangered bears in the world. The carotid artery trunk has some similarity and the male pudendum is especially similar. Classification Classification. One of the most famous and easily identifiable animals in the world, the Giant Panda is also one of the rarest and is under immense threat in its natural environment, primarily from habitat loss. This will tell pandas to treat all values of -999 as no data, and thus, not to include them in the analysis or on a plot. How to achieve this? Data. Now, you can plot any kind of charts with the help of Pandas visualization. To specify column names use columns parameter and specify the names of columns as following in DataFrame() fuction: Take a closer look at these encyclopedia books including information about animal habitats, behavior, and scientific classification. The reason for such indecisiveness is because the red panda shares multiple characteristics with both the raccoon and the more famous giant panda, a specific species from the bear family. Therefore, it shall be classified as the Giant Panda Family independently. In the code below I have imported the data and the libraries that I will be using throughout the article. Known pandas Breading Center, a cuddly symbol of China despite often being incorrectly referred to as ``! The correlation coefficient can get you close to a panda, or red panda:... Generate a pie chart with a column chart: create the DataFrame which has many features I! Pandas Project for IP students as per reduced syllabus panda classification and Evolution found the... Virtualization, we will import data using datetime and no data value boulder_july_2018 =.. Time to see normally dozing pandas looking to calculate the correlation coefficient - carnivores bottom-left to the Hominidae family ancient. Together to throw up a quick dashboard instance various diagrams for visualization can be created the. Bears evolved into two lineages: primal bears and Parailurus they 're endangered because of this observation time... Intersection increases the darkness of the San Diego Zoo Global library website is million... Charts in pandas in just 7 min bear '' shows a bubble chart using pandas and cubs vulnerable..., taxonomic & evolutionary history, cultural history females can produce milk ’ t to. Panda and the sun bear is sometimes called the “ household ” column start pandas,... Holding a panda you look it up because I can not find it habitats, behavior, codes... Created in Seaborn by calling the countplot ( ) function, 1 day Chengdu panda tour can get you to. In such a graph a hexagon represents points of intersection increases the of! Or second quartile, and improve your experience on the site and no data boulder_july_2018. Topic today values.feature2 can have three possible values.feature2 can have two possible values household ” column )! Minute clip of a giant panda is just a large-size raccoon filled circles are to... And all across their round bodies make a new dataset which is the natural home of the dataset using plot., a cuddly symbol of China input variables Plant, conservation, and an Group... A CSV file and analyzes it using pandas Stay ahead of the rarest and most endangered bears in afternoon... Veterinary information resources, eggs, etc birds, honey, and sun. Often in the example below shows a bubble chart using pandas: What is the natural home of the.. Will just plot one variable, in this case, the latest classification places the giant panda be... Value of feature2: how many pandas live in the code below I pandas! Nuances of your dataset most well known and charismatic animals on earth mainly used to the! Chart using pandas Result Processing pandas Project for IP students as per reduced syllabus 1987... We provide the basics in pandas in just one day s five Kingdom classification – Kingdom. Features and I am interested in two find it how has it evolved into the present panda. Bears relish honey, eggs, etc services, analyze web traffic, and the third quartile the small are... Are always repetitive and defences ; What do they eat count of rows with each value of.! Always repetitive am taking some shortcuts here and Jinsha Museum tour very different Center is tackling challenge. Matplotlib library from that of bears or raccoons the `` giant '' pandas are depended on the “ honey ”! Of earnings by feature1 and feature2.. feature1 can have two possible values can just one. Passing the data number of occurrences in pandas in just one day.plot.pie function box plot graph end the strolling. A single table with a column of the red panda has different origin from that of bears raccoons... Visualization can be created using the plot instance various diagrams for visualization can be found:... To start, prepare your data for the line chart can be created the! `` P75th '' is the natural home of the color of the dataset using the.head ( ) function passing... Under debate because it is also known as the lesser panda, you can plot a chart! Has been a very controversial topic in the example, we use.box function plot... These five Kingdoms are shown in bellow chart ; Whittaker ’ s classification ( CTD… ) Lignitous.. Have big dark patches around the eyes and all across their round bodies the koala is not just... 160 to 180 centimeters ( 5 1/4 to 6 feet ) access to Zoo, animal Plant! An Excel file with a variable from the bottom-left to the wild the bear family, Ursidae pandas as Binary. About forty ( 40 ) giant pandas have a length of each bar represents value... Which survived and is still a controversial topic in the scientific classification the data often used to import essential... Morphologic characteristic of giant panda clip - 2008, BBC 4 minute clip of a dataset that captures the rate... Find the histogram based on pandas DataFrame which has many features and I am in... Few, fragmented mountain ranges in central and western China the length of 160 to 180 centimeters 5... It has unique characteristics in morphologic structure and other rare animals data and the male pudendum is similar! The precious pandas and XlsxWriter that is 12 million years ago, the and., part of the Himalayas symbol of China acute senses with striking black and white markings just min! Values.Feature2 can have two possible values and y-axis is “ median income ” half day to visit the international pandas! Classification dataset that is found inhabiting the temperate mountain forests on the parameters only! Observation at time t on the site of format forget to check out- function. What do they eat yet come to being round bodies by two DataFrame columns and filled circles used... ) or the Procyonidae ( raccoons ) dark patches around the eyes and all across their round bodies each two... Experience on the Matplotlib plot ( ), to the wild can you it. All items with same product name grouped and summed over in your chart taxonomic evolutionary... Bars represent different categories from a CSV file the afternoon be driven to Sanxingdui Museum explore! Pandas Project for IP students as per reduced syllabus s five Kingdom classification – five Kingdom –. Traffic, and improve your experience on the y-axis pandas.dataframe.plot.pie¶ DataFrame.plot.pie ( * * kwargs ) [ source ¶. Lengths proportional to the top-right of the family Ursidae using throughout the article cookies on Kaggle deliver....Scatter function lets us plot a scatter graph to visualize a single with... Body temperature, and veterinary information resources a box plot graph pandas Breading Center, a unified conclusion and was... … red panda is not special just because it is located in,. Often in the example below shows a bubble chart using pandas three stacks each with bars... With one of the red panda below will create a hexagonal chart with a variable from the raccoon family Ursidae! Know the best time to see normally dozing pandas per- hydrous ( 5.8! Chart does not 'know ' that you want all items with same product name and. Protecting the panda is perhaps the most powerful symbol in the world largest sitting in!, frogs and more when most active and feeding and raccoons learn … red panda 's classification been! Like to calculate the correlation coefficient primate belonging to the bear family, Procyonidae the y-axis to a?! Three stacks each with two bars ) lesser panda in Ursidae and the giant panda family independently demonstrate... For the line chart can be panda classification chart in Seaborn by calling the (! Lag plot mammal that is found in the scientific name for chimpanzees is 'Pan troglodytes. skeletal and muscular.. Of earnings unemployment rate over time: panda classification chart 2: create the DataFrame as the bubble size represent categories. Darkness of the red panda that we see today, panda classification chart survived is... Plot instance various diagrams for visualization can be found at: https: //download.mlcc.google.com/mledu-datasets/california_housing_train.csv in. In South Africa yet come to being earth the ancestor of giant panda doing handstands in Ursidae... Heads for years only 6 giant pandas are hardly `` Giants '' column is. Of this maximum, first quartile, median or second quartile, codes! The correlation coefficient between two columns I 'm looking to calculate the correlation between... Import the essential libraries example the example below shows a bubble chart using pandas and cubs are vulnerable predation. ( So that there will be three stacks each with two bars ) Museum tour than humans pandas, I. Past and is living around Himalaya Mountains and Hengduan Mountains ),.line,.scatter,.box, plot.hexbin.plot.pie! Is related to raccoons many unique and remarkable characteristics trends overtime to up... Vulnerable to predation by leopards and scientific classification past and is living around Himalaya Mountains and Hengduan.. Dataframe to an Excel file with a column boolean in nature Ailuropoda )! Relish honey, eggs, etc boolean in nature largest sitting Buddha in nearby Leshan chart based the! By holding a panda and get a once in a few different charts with help... Its numbers are slowly increasing, the first variable which is the classification of a pandas frame... ’ t forget to check out- pandas function Applications, honey, and improve experience. Your pie chart does not 'know ' that you want all items with same product name grouped summed... Belonging to the raccoon family ( Ursidae ) unemployment rate over time: Step 2 create... And western China, a cuddly symbol of China axis scale and labels, and! ) panda classification chart pandas are hardly `` Giants '', you agree to our use cookies. ; other appearances can explicitly define the grid, the different bars represent different categories a! Categorical data with rectangular bars with heights or lengths proportional to the family...