Matplotlib entry (bar chart, histogram, box plot, pie chart), matplotlib bar
Data input is required for plotting. The matplotlib package only provides plotting functions, and does not read or output data, you can use the data input function provided by numpy to input various experimental or statistical text data.
#-*-
): After learning to use DWR (AJAX) In the Java EE, sometimes the data returned from the server to the client is an object, you manually pieced together the JSON string easy error, through the degree Niang know json-lib this class library, Easy to support conversion of objects in Java to JSON strings.Dependent class Library: Json-lib-2.4-jdk15.jarEzmorph-1.0.6.jarCommons-logging.jarCommons-lang.jarCommons-collections.jar Basic requirements:1. The foreground will use the DWR framework (or AJAX) t
This article mainly introduces how to generate a pie chart by using php plot. It involves the use of the imagefilledarc method in the GD library. For more information, see
This article mainly introduces how to generate a pie chart by using php
This article describes how to generate a pie chart using php plot, and describes how to use the imagefilledarc method in the GD Library, for more information about how to generate a pie chart in php, see the example in this article. Share it with you for your reference. The
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
This evening I learned how to use the pycha module to create various office charts. This is very simple. In this article, I have used seven charts.
This module and the API address are: Release.
I. Code:
#! /Usr/bin/ENV Python #-*-coding: UTF-8-*-import Cairo import pycha. pieimport pycha. barimport pycha. scatterimport pycha. stackedbarimport pycha. line # Set the canvas def set_charvalue (): width, height = 600,600 surface = Cairo. imagesurface (Ca
ImportMatplotlib.pyplot as Plt#plt for displaying picturesImportMatplotlib.image as Mping#mping for reading picturesImportdatetime as DTImportMatplotlib.dates as Mdates fromPylabImport*defDraw_trend_chart (dates,y): mpl.rcparams['Font.sans-serif'] = ['Simhei']#Specify a default fontmpl.rcparams['Axes.unicode_minus'] = False#fix an issue where saving image is minus '-' displayed as a blockx= [Dt.datetime.strptime (d,'%y/%m/%d'). Date () forDinchDates]#plt.figure (figsize= (8,8))plt.figure ()#PLT.
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
Introduced
Matplotlib is Python's most famous drawing library, which provides a complete set of command APIs similar to MATLAB and is ideal for interactive charting. It can also be conveniently embedded in GUI applications as a drawing control.
Its documentation is fairly complete, and there are hundreds of thumbnails on the Gallery page, which are available after they are opened. So if you need to draw some kind of diagram, just browse/copy/paste it in this page, and basically you can do it.
Use jfreechart to generate a bar chart, line chart, and pie chart.
JFreeChart is an open class library for drawing charts on the JAVA platform. It is fully written in JAVA and is designed for applications, applets, servlets, and JSP. Next I will detail how to use jfreechart to generate bar charts, line charts, and
Php generates a pie chart. The code for copying a pie chart is as follows :? Php + ---------------------- + | pie3dfun. PHP public function | + ------------------------ + define (ANGLE_STEP, 3); defines the angle pie chart when an
option to adjust the second plot contains the last value as the appropriate number, in this case, select 4. The meaning of these two items is to select the position in the last 4 items of data to form a second plot (click the up and down arrows to adjust the number size, in the adjustment process to watch the pie chart
axis display label DataSet,//DataSet Plotorientation.vertical,//Chart direction: Horizontal, vertical true,//Whether the legend is displayed (must be false for a simple histogram) False,//whether the build tool is false//generates a URL link ); Start Here Categoryplot plot=chart.getcategoryplot ();//Get the
axis display label DataSet,//DataSet Plotorientation.vertical,//Chart direction: Horizontal, vertical true,//Whether the legend is displayed (must be false for a simple histogram) False,//whether the build tool is false//generates a URL link ); Start Here Categoryplot plot=chart.getcategoryplot ();//Get the
label" Quantity ",///value axis display label DataSet,//DataSet Plotorientation.vertical,//Chart Orientation: Horizontal, vertical true,//Whether the legend is displayed (for a simple bar chart must be false
False,//whether to generate tool false//whether URL link is generated ); Starting from here Categoryplot Plot=chart.getc
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