Question

Expected submission: 1 Python file, Graph_Data.py Make a file called Graph_data Inside this file create 3 functions: 1.) BarGraph: This function should take 5 parameters, X-axis data, y-axis data, X-axis label, y-axis label, title. It will create a bar graph using the above data and display it. 2.) Line Graph: This function is the same as above, except with a line graph instead of a bar graph 3.) SaveGraph: This function is the same as BarGraph, except it saves the graph instead of displaying it Write code that helps catalog collectibles for the user. This program will ask the user what they want to do, giving them the option to either 1. Log a new item 2. Create a bar graph of the existing data 3. Create a line graph of the existing data 4. Save the existing data's graph 5. Exit When logging the items, ask the user for: 1. Name 2. Category 3. Price How you save this data is up to you. You can use a list, dictionary, or anything else you want. When creating the graphs, ask the user if they want a graph based on price or category, then create that graph.

Answer 1

The Code for Graph_Data.py is

from matplotlib import pyplot #used matplotlib to plot the graphs to install matplotlib use command "python -m pip install matplotlib" log = {"name":[],"category":[],"price":[]} #used hybrid(dictionary,lists) data structure as storage element """ BarGraph LineGraph SaveGraph Main Code Section """ def BarGraph(x_data,y_data,x_label,y_label,title): pyplot.bar(x_data,y_data) pyplot.xlabel(x_label) pyplot.ylabel(y_label) pyplot.title(title) pyplot.show() def LineGraph(x_data,y_data,x_label,y_label,title): pyplot.plot(x_data,y_data) pyplot.xlabel(x_label) pyplot.ylabel(y_label) pyplot.title(title) pyplot.show() def SaveGraph(x_data,y_data,x_label,y_label,title): pyplot.bar(x_data,y_data) pyplot.xlabel(x_label) pyplot.ylabel(y_label) pyplot.title(title) pyplot.savefig(title+".png") if __name__=="__main__": print("::Menu::") #printed the menu only once if you want it repeatedly place it in while loop print("1.Log a new item") print("2.Create a bar graph of the existing data") print("3.Create a line graph of the existing data") print("4.Save the existing data's graph") print("5.Exit") while True: #executes until 5.Exit option is selected opt = input("opt >> ") if opt == "1": #1.Logging a new item, (name,category,price) are stored in log data structure name = input("enter item name:") category = input("enter item category:") price = int(input("enter item price:")) log["name"].append(name) log["category"].append(category) log["price"].append(price) elif opt == "2": #2.Creating a bar graph with the existing log data query = input("based on 1.price or 2.category ?:") #based on selected ones graphing takes place if query=="1": BarGraph(log["name"],log["price"],"Names","Prices","Prices of Items") # Names vs Prices bar graph else: BarGraph(log["name"],log["category"],"Names","Categories","Categories of Items") # Names vs Categories bar graph elif opt == "3": query = input("based on 1.price or 2.category ?:") if query=="1": LineGraph(log["name"],log["price"],"Names","Prices","Prices of Items") # Names vs Prices line graph else: LineGraph(log["name"],log["category"],"Names","Categories","Categories of Items") # Names vs Categories line graph elif opt == "4": query = input("based on 1.price or 2.category ?:") if query=="1": SaveGraph(log["name"],log["price"],"Names","Prices","Prices of Items") # Names vs Prices bar graph is saved as png else: SaveGraph(log["name"],log["category"],"Names","Categories","Categories of Items") # Names vs Categories bar graph is saved as png elif opt == "5": #5.Exit - exiting the loop break else: #if any other input is placed it shows invalid option print("Invalid option") 

Explanation of the code is given in the comments section of the code. Please go through that and feel free to ask queries if any.

Sample output of the code:

Graphs produced from option 2 to 4 are

After entering the same data using option 1

choosing option 2 then 1 produces below graph

choosing option 2 then 2 produces below graph

choosing option 3 then 1 produces below graph

choosing option 3 then 2 produces below graph

choosing option 4 then 1 produces below graph

Entering option 5 exits the loop there by execution as well.

Thank you, feel to ask queries if any. Don't forget to like.