Tutorial by Examples: ros

Either input can be an array of 3- (or 2-) element vectors. >>> a=np.array([[1,0,0],[0,1,0],[0,0,1]]) >>> b=np.array([1,0,0]) >>> np.cross(a,b) array([[ 0, 0, 0], [ 0, 0, -1], [ 0, 1, 0]]) The result in this case is array([np.cross(a[0],b), np.c...

Simplicity Probably the best part of CoffeeScript is its simplicity. CoffeeScript allows for a more concise and simplistic syntax than plain JavaScript. One simple but surprisingly time-saving feature is that CoffeeScript has no need for ; or {}, eliminating the need to spend hours finding out the ...

Installing mvvmcross with nugget: Search for mvvmcross in the "Manage Nugget Packages" window. Installing mvvmcross with Package Manger Console: PM> Install-Package MvvmCross Make sure to install it on both your PCL (Portable Class Library) and you application project. As the...

Mvvmcross is an open source MVVM platform that comes to solve our problems while developing cross platform applications (such as Android, Windows Phone, IOS, etc...). The main problem is, that every platform has its own specifics, but the business logic of your application is likely to be the same ...

To make an app more cohesive, we often need to keep user's personal settings and preferences consistent across multiple devices that have been logged in with one Microsoft account. In this sample, we use roaming data to store and to load UI settings, game process and user info. But the roaming data ...

Declare: defmodule MyApp.ViaMacros.Constants do @moduledoc """ Apply with `use MyApp.ViaMacros.Constants, :app` or `import MyApp.ViaMacros.Constants, :app`. Each constant is private to avoid ambiguity when importing multiple modules that each have their own copies of th...

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There’s no API that can break the locked lease of blob storage in Microsoft Azure . This code snippet demonstrates break the locked lease of blob storage in Microsoft Azure (PowerShell). $key = (Get-AzureRmStorageAccountKey -ResourceGroupName $selectedStorageAccount.ResourceGroupName -name $select...

@Helpers could be shared between views. They should be created in the folder App_Code @helper CreatePrimaryBootstrapButton(string label) { <button type="button" class="btn btn-primary">@label</button> } //call @MenuHelpers.CreatePrimaryBootstrapButton...

0.6.0-dev In Julia v0.6 and later, command macros are supported in addition to regular string macros. A command macro invocation like mymacro`xyz` gets parsed as the macro call @mymacro_cmd "xyz" Note that this is similar to string macros, except with _cmd instead of _str. We typ...

roslaunch is an important tool that manages the start and stop of ROS nodes. It takes one or more "*.launch" files as arguments. For this example, I will refer to the following (as asked in this question), so how can we execute those commands consecutively & automatically : roscd ste...

In the build.sbt file (or where the project is defined if it is in another location), add the following setting: scalacOptions += "-language:experimental.macros" For instance, a project might be defined like this: lazy val main = project.in(file(".")) // root project .se...

The first step to fix this issue I found was to download PSTools and extract the tools to a convenient location on the build server (e.g. c:\Programs\PSTools is there I extracted mine).

Define a new basic command A macro can be defined using \newcommand. For example: \newcommand{\foo}{Just foo, you see?} defines a macro \foo that expands to Just foo, you see?. It can then be used like any built-in command, for example after that definition: He said: ``\foo'' expands to He...

CI/CD pipeline Centralized authentication and authorization service API documentation API gateway Centralize log management tool Service monitor Infrastructure Automation Centralized config server

# imports import weka.core.converters.ConverterUtils.DataSource as DS import weka.classifiers.Evaluation as Evaluation import weka.classifiers.trees.J48 as J48 import java.util.Random as Random import os # load data data = DS.read(os.environ.get("MOOC_DATA") + os.sep + "annea...

# Note: install jfreechartOffscreenRenderer package as well for JFreeChart library # imports import weka.classifiers.Evaluation as Evaluation import weka.classifiers.functions.LinearRegression as LinearRegression import weka.core.converters.ConverterUtils.DataSource as DS import java.util.Ran...

Let df = pd.DataFrame({'col_1':['A','B','A','B','C'], 'col_2':[3,4,3,5,6]}) df # Output: # col_1 col_2 # 0 A 3 # 1 B 4 # 2 A 3 # 3 B 5 # 4 C 6 To get the distinct values in col_1 you can use Series.unique() df['col_1'].unique() # Output: ...

In [1]: import pandas as pd import numpy as np arrays = [['bar', 'bar', 'baz', 'baz', 'foo', 'foo', 'qux', 'qux'], ['one', 'two', 'one', 'two', 'one', 'two', 'one', 'two']] idx_row = pd.MultiIndex.from_arrays(arrays, names=['Row_First', 'Row_Second']) idx_col = pd.MultiIndex.from_pro...

One needs the predicted probabilities in order to calculate the ROC-AUC (area under the curve) score. The cross_val_predict uses the predict methods of classifiers. In order to be able to get the ROC-AUC score, one can simply subclass the classifier, overriding the predict method, so that it would a...