python scatter plot example

Use the tkinter module in Python to plot (continued), pythontkinter8. display text UseCreate_textWrite on the canvas. This function only requires two coordinates (The position of the text x and y) and a named parameter to accept the text to be displayed. For example: >>> from tkinter import*>>> tk = Tk()>>> canvas = Canvas(tk,width=400,height=400)>>> canvas.pack(

loop iterate through our Plots.If You're Confused about the A for loop, need to first run through the Python 3 Basics series, or Specifica Lly the For Loop Basics Tutorial.If you ' re confused about the actual code being used, especially with iterating through this loop, or the scatter plotting Code slices that look like this: [:, 0], then check out the Video. I explain them there.The resulting graph, afte

Python Plotting Method example, python plotting example This example describes the python plotting method. Share it with you for your reference. The details are as follows: #-*-Coding: UTF-8-*-import matplotlib. pyplot as pltdef m

Python data analysis-two-color ball-based linear regression algorithm to predict the next winning results example, python winning results This article describes how to use a two-color ball in Python data analysis to predict the next winning result based on a linear regression algorithm. We will share this with you for

I recently used python's statistical and plotting functions. I accidentally found this, which is quite interesting. I will share it with you. the following article mainly describes how to use python to draw a heart. if you need it, you can refer to it for reference. Preface Python generally uses Matplotlib to create statistical graphs. in its own statement, 'make simple things simple and make complex thes

Python data analysis-blue-red ball in two-color ball analysis statistical example, python Data Analysis This article describes the two-color ball blue-red ball analysis statistics of Python data analysis. We will share this with you for your reference. The details are as follows: Next, let's take a look at the previous

What is reference transfer? Let's look at a C ++ function that exchanges two numbers: Copy codeThe Code is as follows:Void swap (int a, int B){Int temp;Temp =;A = B;B = temp;} This example is an example of reference transfer! The purpose is to explain the concept: the reference transfer means that you pass the object reference, and the modification to this reference will also lead to changes to the origin

. This is not what I want! For example: The Code is as follows: L1 = [1, 2]L2 = l1L2.append (3)Print l1Print l2# L1 = [1, 2, 3], l2 = [1, 2, 3] This is caused by Python reference transfer. That is to say, l1 and l2 belong to the same list object. How can we get a different object? This is not so easy. Use slice to scatter, for

+ = Reg *W2 $DW + = Reg *W141 142 #perform a parameter update143W + =-step_size *DW144b + =-step_size *DB145W2 + =-step_size *dW2146B2 + =-step_size *DB2147 #evaluate training set accuracy148Hidden_layer = Np.maximum (0, Np.dot (X, W) +b)149Scores = Np.dot (Hidden_layer, W2) +B2 MaxPredicted_class = Np.argmax (scores, Axis=1)151 Print 'Training accuracy:%.2f'% (Np.mean (Predicted_class = =y)) the #plot the resulting classifier153H = 0.02154X_min,

Python matplotlib simple drawing example, pythonmatplotlib This example describes how to use matplotlib for simple plotting in Python. We will share this with you for your reference. The details are as follows: #-*-Coding: UTF-8 -*-#! Python2 "Created on Mon Apr 24 12:48:40 2017 @ author: x-power" import matplotlib. py

) In [all]: x Out[11]: Array ([7, 4, 5 , 4, 2]) 3. Scatter chart x x axis y y axis s dot Area C color marker dot shape alpha dot transparency #其他图也类似这种配置 n=50# Height=np.random.randint (150,180,20) # weight=np.random.randint (80,150,20) x=np.random.randn (N) y= Np.random.randn (N) plt.scatter (x,y,s=50,c= ' R ', marker= ' o ', alpha=0.5) plt.show () 4. Line chart x=np.linspace(-10000,10000,

This article mainly introduces the python plotting method. The example analyzes the plotting skills of Python, and involves the usage of matplotlib module in Python. For more information, see the example in this article. Share it with you for your reference. The details are

Python implementation in tkinter using matplotlib to draw graphics method example, tkintermatplotlib This example describes how to use matplotlib to draw a graph in tkinter using Python. We will share this with you for your reference. The details are as follows: I. Code: # Coding = utf-8import sysimport Tkinter as Tkim

Python OpenCV histogram calculation and display method example, pythonopencv This article introduces how to use OpenCV Python to calculate histograms, and briefly introduces how to use NumPy and Matplotlib to calculate and draw histograms. The background knowledge and usage of the histogram are omitted. Here we will introduce the method directly. Calculate and di

This article mainly introduces the example of implementing the k-means algorithm in python, simple implementation of point K-means analysis in the plane, using Euclidean distance, and using pylab, if you need it, you can refer to the simple implementation of point K mean analysis in the plane, use Euclidean distance, and use pylab to display it. The code is as follows: Import pylab as pl # Calc Euclid sq

Matplotlib's official website address: http://matplotlib.org/ When using Python to do data processing, a lot of the data we don't seem to be intuitive, and sometimes it's graphically shown that it's easier to observe the changing characteristics of the data, and so on. Matplotlib is a Python 2D drawing library that generates publishing quality-level graphics in a variety of hard copy formats and cross-platf

This article describes how to use the matplotlib module to plot data graphs in Python. the matplotlib module is often used to visualize data, for more information, see matplotlib, which is the most famous drawing library in python. It provides a complete set of command APIs similar to matlab and is very suitable for interactive plotting. It can also be easily use

Here's a small piece to bring you an example of Python using OpenCV to read pictures. Small series feel very good, now share to everyone, also for everyone to make a reference. Let's take a look at it with a little knitting. After installing the environment, start the first Hello Word example, how to read the picture, save the artwork Import CV2 Import NumPy a