Strange behavior of strsplit() in RI don't recall ever modifying a path on a Mac before, and I don't find the '/.Renviron' file you mentioned. R independent columns in matrix. How to make your ranking values show integer (without decimals) in R data.table.
Data.Table Clang -Fopenmp Mac OS X AreThe Tkinter, NumPy, and Pygame libraries, which are used by the booksite programs that do graphics or audio processing. IDLE, the Python Integrated Deve Lopment Environment. Python, that is, the Python compiler/interpreter. These instructions are for MacOS X 10.13 (High Sierra), but the instructions for other versions of Mac OS X are similar.The Python programming environment required by this booksite consists of: All of the software is freely available on the Web.![]() ![]() If Python generates no error messages, then you have installed Pygame properly.At the Python > prompt, type exit() followed by the Enter key to exit Python.Downloading and Installing the Booksite LibraryPerform these steps to download and install the booksite library:Use your Web browser to download this introcs-1.0.zip file to your /Users/ yourusername/Downloads directory.Note: The Mac Finder application uses the term folder to mean a container of documents and, perhaps, other folders. You should see something like this:Python 2.7.10 (default, Oct 6 2017, 22:29:07) on darwinType "help", "copyright", "credits" or "license" for more information.If you see that output, then your Python compiler/interpreter is working, and Tkinter, numpy, and IDLE are available.At the Python > prompt, type the statement import pygame followed by the Enter key. Enter your computer's administrator password when prompted:In the Terminal window issue this command to use pip to install Pygame:Perform these steps to test your environment:In the Terminal window issue the python command. If Python generates no error messages, then you have installed the booksite library properly.So far you've downloaded and installed all of the software that you'll need. The computer copies the files defining the booksite modules to a directory where Python can find them, and writes status messages to your Terminal window to indicate its progress.Perform these steps to test your installation of the booksite library:In the Terminal window issue the python command.At the Python > prompt, type the statement import stdio followed by the Enter key. Make sure that a file named setup.py is in your working directory.Issue the python setup.py install -user command. Command changes your working directory to the "parent" of the current working directory.)Issue the ls command to display the names of all files in your working directory. In the Terminal window issue the cd Downloads command to change your working directory to /Users/ yourusername/Downloads, and then issue the cd introcs-1.0 command to change your working directory to /Users/ yourusername/Downloads/introcs-1.0. Initially the working directory is /Users/ yourusername. Perform these instructions:Using the Finder, create a directory named /Users/ yourusername/hello.Issue the cd hello command to make the /Users/ yourusername/hello directory your working directory.Issue the command idle & to launch IDLE. Menu item.Click on the Open Edit Window radio button.Having installed Python, the Python standard libraries, IDLE, Tkinter, NumPy, Pygame, and the booksite libraries, and having configured IDLE, you are ready to compose your first Python program. Follow these instructions:In the Terminal window issue the command idle to launch IDLE.Click on the Python → Preferences. ![]() It is possible to run some Python programs from within IDLE, but you should run the programs associated with this booksite directly from a Terminal window. The file name is case sensitive, so make sure you use all lowercase letters.The final step is to run your program. Save it in a file named helloworld.py in the directory /Users/ yourusername/hello. Menu item to save the Python program. If the computer instead writes error messages, then use IDLE to correct your program, and issue the python helloworld.py command again. If the computer writes "Hello, World" to the Terminal window, then the execution of your helloworld.py program was successful. Confirm that the working directory contains your helloworld.pyfile.Issue the python helloworld.py command to run your program. Having done so, you can run those programs to help you learn about them. Congratulations! You are a Python programmer!Downloading the Booksite Example Programs (optional)We recommend that you download the booksite example programs, that is, the example Python programs that are presented incrementally throughout the booksite. If your program runs successfully the first time you try, then intentionally introduce an error into your program, just so you get some experience with correcting errors.You now have installed and configured a reasonable Python environment, and have used it to compose and run a Python program. Perform these instructions:Use your Web browser to download this introcs-data.zip file to your /Users/ yourusername/Downloads directory.In the Finder, double-click on the /Users/ yourusername/Downloads/introcs-data.zip file, thus creating the /Users/ yourusername/Downloads/introcs-data directory containing the booksite example data files. If Python launches a stddraw window showing an animated bouncing ball, then your download of the booksite example programs was successful.Downloading the Booksite Example Data (optional)We recommend that you download the booksite example data, that is, the data files used by the booksite example programs that are presented incrementally throughout the booksite. Confirm that the working directory contains a file named bouncingball.py.Issue the python bouncingball.py command. (It's OK to delete the /Users/ yourusername/Downloads/introcs-python.zip file after you have unzipped it.)Then perform these steps to test your download of the booksite example programs:Issue the cd Downloads and cd introcs-python commands to make /Users/ yourusername/Downloads/introcs-python your working directory.Issue the ls command. Fuzzy find excel for macPerform these instructions:Use your Web browser to download this stdlib-python. Now we describe how to download the booksite library so you can find it — for the sake of studying the code that implements it, should you so desire.
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