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Programming Articles
Page 2241 of 2547
How to set the matplotlib figure default size in ipython notebook?
To set the matplotlib figure default size in iPython, use the following steps −To check the default figure size, use plt.rcParams["figure.figsize"] over the ipython shell.Now to set the figure size, override the plt.rcParams["figure.figsize"] variable with a tuple i.e., (20, 10).After overriding the plt.rcParams["figure.figsize"] variable, you can use it to get changed figure size.Exampleimport matplotlib.pyplot as plt print("Before, figure default size is: ", plt.rcParams["figure.figsize"]) plt.rcParams["figure.figsize"] = (20, 10) print("After, figure default size is: ", plt.rcParams["figure.figsize"])OutputBefore, figure default size is: [6.4, 4.8] After, figure default size is: [20.0, 10.0]
Read MoreFill between two vertical lines in matplotlib
To fill color between two vertical lines, use the following steps −Using plt.subplots() method, create a figure and a set of subplots. This utility wrapper makes it convenient to create common layouts of subplots, including the enclosing figure object, in a single call.To draw two vertical lines, initialize x = 3 and x = 5.Using the created ax, axvspan would help to add vertical span(rectangle) across the axes.This rectangle spans from xmin to xmax horizontally, and, by default, the whole Y-axis vertically.To show the figure, use the plt.show() method.Exampleimport matplotlib.pyplot as plt fig, ax = plt.subplots() line1 = ...
Read MoreRemove or adapt the border of the frame of legend using matplotlib
To remove or adapt the border of the frame of legend we can follow the following steps −Set the X-axis label using the plt.xlabel() method.Set the Y-axis label using the plt.ylabel() method.Plot the lines using the plt.plot() method with [9, 5], [2, 5] and [4, 7, 8] array.Initializing two variables; location = 0 for the best location and border_drawn_flag = True (True, if border to be drawn for legend. False, if border is not drawn).Use the plt.legend() method for the legend and set the location and border_drawn_flag accordingly to get the perfect legend in the diagram.plt.show() method would help to ...
Read MoreHow to plot a histogram using Matplotlib in Python with a list of data?
To plot a histogram using Matplotlib, we can follow the steps given below −Make a list of numbers and assign it to a variable x.Use the plt.hist() method to plot a histogram.Compute and draw the histogram of *x*.We can pass n-Dimensional arrays in the hist argument also.To show the plotted figure, use the plt.show() method.Examplefrom matplotlib import pyplot as plt x = [300, 400, 500, 2000, 10] plt.hist(x, 10) plt.show()Output
Read MoreHow to display multiple images in one figure correctly in matplotlib?
To display multiple images in one figure, we can follow the steps given below −Initialize the number of rows and cols. nrows*ncols subplot will be created in the current figure. nrows = 2 and ncols = 2, i.e., 2*2 = 4 subplots can be created.Now add the figures at different indices from 1 to 4.Use plt.subplot(2, 2, 1) to add new images, i.e., pie at index 1.To plot a pie chart, pass a list of numbers. Pie charts will be split into the size of list and %age section will depend upon the values in the list.Set the title of ...
Read MoreHow to pick a new color for each plotted line within a figure in matplotlib?
To pick a new color for each plotted line within a figure, use the following steps −Setup X-axis and Y-axis labels for the diagram.Set the current .rc parameters. For axes facecolor, the group is axes.Use a cycler to set the color for the group of lines. The color list consists of ‘r’ for red, ‘g’ for green, ‘b’ for blue, and ‘y’ for yellow.Cycler class helps to create a new Cycler object from a single positional argument, a pair of positional arguments, or the combination of keyword arguments.Plot the number of lines with different colors.Use plt.show() to show the figure.Exampleimport ...
Read MoreHow to move the Y-axis ticks from the left side of the plot to the right side in matplotlib?
To shift the Y-axis ticks from left to right, we can perform the following steps −Create a figure using the figure() method.Using the above figure method, create the axis of the plot, using add_subplot(xyz), where x is row, y is column, and z is index.To shift the Y-axis ticks from left to right, use ax.yaxis.tick_right() where ax is axis created using add_subplot(xyz) method.Now plot the line using plot() method, with given x and y points, where x and y points can be created using np.array() method.Set up x and y labels, e.g., X-axis and Y-axis , using xlabel and ylabel ...
Read MoreFind next palindrome prime in C++
In this problem, we are given an element N. We need to find the next palindrome prime.Problem Description − We need to find the smallest prime number which is also a palindrome number, greater than N.Palindrome Number is a number in which the numbers are the same in both directions.Prime Number is a number if its only factors are 1 and itself.Let’s take an example to understand the problem, InputN = 12Output101ExplanationThe series of palindromes greater than 12 are 22, 33, 44, 55, 66, 77, 88, 99, 101… out of these the smallest palindrome is 101.Solution ApproachA simple solution to ...
Read MoreFind maximum sum array of length less than or equal to m in C++
In the problem, we are given n arrays of different length. Our task is to Find the maximum sum array of length less than or equal to m.We need to find sub-arrays from the arrays to maximise the sum and make the length of all subarrays combined equal to m.Let’s take an example to understand the problem, Inputn = 3, m = 4 arrOfArr[][] = { {5, 2, -1, 4, -3} {3, -2, 1, 6} {-2, 0, 5} }Output20ExplanationSubArrays are {5, 4}, {6}, {5}, length = 2 + 1 + 1 = 4 Sum = 5 + ...
Read MoreWrite a C program to work on statements using functions and loops
ProblemHow to print the long lines into two or more short lines based on specified length in the program using C Language?SolutionLet’s write a code to read a long line and print into two or more short lines according to the mentioned size in the program.The built in functions that we take in this program readline() function, is used to store text in array and returns the size of line.The logic we use to read a short sentence is explained below −while((charcter=readtext())>0){ if(charcter>length){ count=0; a=0; while(alength){ count=0; a=0; while(a
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