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c++ Type does not provide a call operator error?

I'm working on an inheritance assignment and wanted to firstly test out my base class with its setters & getters & constructors, but I'm already hitting a wall. What's wrong with my constructor? I would normally just use a no argument constructor and use the setters and getters to buil . . .阅读更多

无法从'cv :: Mat'转换为'void *'

It seemed that I am the only one who got this problem with Opencv 2.4.3. http://docs.opencv.org/modules/calib3d/doc/camera_calibration_and_3d_reconstruction.html The following codes are published on that official website: Size patternsize(8,6); //interior number of corners Mat gray = . . . .阅读更多

ModuleNotFoundError: No module named 'object_detection'

i try to train.py in object_detection in under git url https://github.com/tensorflow/models/tree/master/research/object_detection However, the following error occurs. ModuleNotFoundError: No module named 'object_detection' So I tried to solve the problem by writing the following code. . . .阅读更多

ImportError:没有名为boto3的模块

Installed the boto3 and upgraded it to the latest release. I tried the easy install pip for installation. I have multiple versions of python installed so I even tried installing in virtualenv venv. But I get the same error: "No module named boto3". pip install boto3 python Python 2.7. . . .阅读更多

Numpy Array, Data must be 1-dimensional

I am attempting to reproduce MatLab code in Python and am stumbling with a MatLab matrix. The block of code in MatLab is below: for i = 1:Np y = returns(:,i); sgn = modified_sign(y); X = [ones(Tp,1) sgn.*log(prices(:,i).*volumes(:,i))]; I am having a hard time creating 'X . . .阅读更多

OpenGL, GLUT, Cygwin - failed to open display ''

My "CMakeList.txt" file cmake_minimum_required(VERSION 3.1) project(butler) ######################################################### # FIND GLUT ######################################################### find_package(GLUT REQUIRED) include_directories(${GLUT_INCLUDE_DIRS}) link_direc . . .阅读更多

How to plot hyperplane SVM in python?

My first question so please bear with me :) I use the Shogun toolbox to work with SVM in Python. I just experiment first to get a better understanding of SVM's. I wrote something in Python with some data points to linearly separate. I use the LibSVM() X = np.array([[2.0, 2.0, 1.0, 1.0 . . .阅读更多

ModuleNotFoundError: No module named 'pyaudio'

I ran pip install pyaudio in my terminal and got this error: Command "/home/oliver/anaconda3/bin/python -u -c "import setuptools, tokenize;file='/tmp/pip-build-ub9alt7s/pyaudio/setup.py';f=getattr(tokenize, 'open', open)(file);code=f.read().replace('\r\n', '\n');f.close();exec(compile( . . .阅读更多

Ubuntu 17.04 - can't install mysql-server-5.6

I searched everywhere for this one and can't get it to work. when running: sudo apt-get install mysql-server-5.6 I get this result: Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that . . .阅读更多