google.m A Simple Shell Interface for Google Search in Matlab
The google.m is a shell interface designed to initiate Google searches and display the first few results in the Matlab command window. The function takes varargin as query terms and uses regular expressions to parse the text returned by Google. One of the interesting features is that you can input misspelled words, as Google will automatically correct them. google.m also caches results to prevent repeated queries from accessing Google’s servers. It always displays cached results, though users can clear the cache when needed. The idea behind google.m was inspired by goosh.org.
Usage Example:- google math- google matlab files- google matlab Chen Chao Wei
Press "Enter" 3 times to exit the search.
Other Considerations:1. Tested only in Windows environments. Mac users may need to modify filesep.2. A Google API key may be required.3. Be mindful of the usage of cprintf.
Matlab
0
2024-11-05
Binary Data Storage in Oracle-Managing Binary Objects
Oracle provides several types for storing binary data such as BFILE, BLOB, BAW(L), and LONG RAW to handle data like images, sounds, and videos. Typically, in real-world projects, images and sounds are not stored directly in the database. Instead, the paths to the files are stored, and only when security requirements are high, the actual files might be stored in the database. BAW(L), LONG RAW, BLOB, and BFILE each serve different use cases depending on the data type and storage requirements.
Oracle
0
2024-11-05
Binary Image Processing in MATLAB
In Binary Image processing, pixels are represented as either 0 or 1, where 0 represents black and 1 represents white. This type of image is often used in image segmentation, object recognition, and thresholding tasks in MATLAB. The conversion of a grayscale image to binary involves setting a specific threshold value, above which pixel values are set to 1, and below which they are set to 0.
Matlab
0
2024-11-06
Change Aspect Ratio in MATLAB for Better Visualization
改变图形的长宽比例
有时为了美观,需要改变一下图形的长宽比例。用如下的语句就可以实现:
set(gca, 'position', [x0, y0, xL, yL])
其中,x0、y0表示axes的位置;xL、yL表示axes的长和宽。
Matlab
0
2024-11-04
Signal to Binary Conversion 5Methods for Mapping Signals to Binary Streams in MATLAB Development
将信号转换为二进制表示的五种方法。Arthur Petrosian概述的方法《有限序列的Kolmogorov复杂度和识别不同的前期脑电图模式》。方法有:
平均法:如果高于信号平均值,则样本分配1。
修正区法:如果超出平均值正负标准差,则样本指定为1。
微分法:如果2个连续样本之间的差异为正,则样本分配1。
区域差分法:如果连续样本之间的差异大于信号的标准偏差,则样本分配为1。
修正区微分法:类似于4,具有先验选择的边界值。
Matlab
0
2024-11-05
Array.java 数组模拟
模拟数组底层实现,对数组二次封装,更方便地管理数组。
算法与数据结构
2
2024-05-25
Matrix vs Array Operations in MATLAB
矩阵运算和数组运算的对照表:
| 矩阵算法 | 数组算法 | 命令形式 | 功能含义 ||------------------|--------------------|--------------------|---------------------------------------|| A’ | A.’ | 求矩阵A的共轭转置 | 求数组A的非共轭转置 || x±A | x±A | 标量x与矩阵A元素和或差 | 标量x与数组A元素和或差 || x×A | x.*A | 标量x与方阵A各元素积 | 标量x与数组A各元素积 || x×inv(A) | - | 标量x与方阵A的逆矩阵积 | - || x./A, A.\x | - | 标量x分别除以矩阵A元素 | 标量x分别除以数组A元素 |
Matlab
0
2024-11-01
解决ERROR ShellFailed to locate the winutils binary in the hadoop binary path java.io.IOException
在使用Hadoop时遇到了'ERROR Shell:Failed to locate the winutils binary in the hadoop binary path java.io.IOException'的问题。这个错误提示表明系统无法找到Hadoop所需的winutils二进制文件。为了解决这个问题,可以尝试配置正确的Hadoop二进制路径,确保系统能够正确访问winutils文件。
Hadoop
2
2024-07-30
Head First SQL学习笔记
第一章:创建数据库CREATE DATABASE database_name;使用数据库USE database_name;创建表CRATE TABLE table_name ( col2 VAR_TYPE, col1 VAR_TYPE NOT NULL DEFAULT xxx, );删除表DROP TABLE table_name;显示表DESC table_name; DESCRIBE table_name;插入数据INSERT INTO table_name (col1, col2) VALUES (col1_val, col2_val),还有其他插入数据的方法,不一一详述。
SQLServer
1
2024-07-30