how to draw bar chart in python

I have seen a three-dimensional bar chart on cocoachina. The effect is very good. below is the link, Http://www.cocoachina.com/bbs/read.php? Tid-9462-toread-1.html Ntchartview. h # Import Ntchartview. m # Import "ntchartview. H "static int margin_left = 50; static int margin_bottom = 30; static int margin_top = 20; static int show_scale_num = 5; @ interface ntchartview (private)-(void)

‘)plt.legend(loc=‘upper right‘)plt.xticks((0,2,4,6,8,10),(‘1月‘,‘3月‘,‘5月‘,‘7月‘,‘9月‘,‘11月‘))plt.xlabel(‘月份‘)plt.ylabel(‘XX事件数‘)plt.grid(x1)plt.show()5. Read the hourly frequency data, draw the overlapping bar chartdata_hour2015 = pd.read_csv(‘data_hour2015.txt‘)data_hour2016 = pd.read_csv(‘data_hour2016.txt‘)plt.figure(figsize=(10, 6))data_hour2015[‘nums‘].T.plot.bar(color=‘g‘,alpha=0.6,label=‘2015年‘)data_hou

This article mainly introduces how to use the jQueryjqPlot plug-in to draw a bar chart. If you need a friend, you can refer to the need to display the account funds during the development of a project, in order to provide a good user experience, we adopt columnar graphics. If the original ecological script is used for plotting, it will take a long time. Therefore

This article mainly introduces the use of Python to draw a summary of the chart, small series feel very good, and now share to everyone, but also for everyone to do a reference. Let's take a look at it with a little knitting. Before using Python to draw a

-dimensional streamline diagrams, and more.Java ProgrammerFor Java programmers, the frequently used cartographic library is Jfreechart, using Jfreechart, we are able to implement pie charts, histogram (bar charts), scatter plot (scatter plots), time series diagram (time Series), Gantt chart (Gantt charts), etc., and can also be associated with Excel and PDF and so on, save the diagram locally and so on.Java

Python uses the pie function of matplotlib to draw a pie chart. matplotlibpie This article describes how to use matplotlib's pie function to draw a pie chart in Python. We will share this with you for your reference. The details a

Set we want to draw the data from the waterfall and load it into the data frame (DataFrame). The data needs to start with your starting value, but you need to give the final total. We will calculate it below. index = [' Sales ', ' returns ', ' credit fees ', ' rebates ', ' late charges ', ' shipping ']data = {' Amount ': [350000,-30000,-7500,- 25000,95000,-7000]}trans = PD. DataFrame (Data=data,index=index) I used the convenient display function i

Matplotlib is a Python toolbox for data visualization of scientific calculations. With it, Python can draw a wide variety of data graphics, such as MATLAB and Octave. The following article mainly describes how Python uses matplotlib to draw a line

=table.col_values (i) A=a_col[0,a_col.index (U ") However, it is important to note that this command cannot be used for columns that control the number of rows, otherwise an error will be made, and other judgment statements can be written to identify whether the command is used. Two. How to draw with Python: This article describes the method of drawing with the Matplotlib library, which should first be im

control, Query button.C, Interface entry: System or service name/start time/end time; The out parameter is the chart, the concrete manifestation is Base64 data.Interface method:4. The Code of the server and the front-end code:Specifically how to masturbate, here omit 1000 words. Now feel it, the process of the code is very painful, because there are always two characters in the heart of the fight; a character is a product, that is, the design interac

Python uses matplotlib to draw a line chart tutorial, pythonmatplotlib Introduction to matplotlib Matplotlib is the most famous plotting 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 used as a drawing control and embe

Python uses the matplotlib library to draw a pie chart. Introduction Matplotlib 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 used as a drawing control and embedded into GUI applications. It

Background:Automatically obtain bug trend statistics in the defect management system and save to CSV, read the CSV data and draw a line chart with data markers, and save it as a PNG picture The following code only implements the "read CSV data and draw a line chart with data markers, and save as a PNG picture" feature

The violin chart (Violinplot) can be understood as a box plot (boxplot) with a density map (kdensity), this article briefly describes how to draw the graph in Python, using data for the Stata software system with auto data (exported to CSV format). Import command 1) Set the working environment%CD "F:\\dropbox\\python