What is pivot? How do I pivot? Long format to wide format? I’ve seen a lot of questions that ask about pivot tables, even if they don’t know it. It is virtually impossible to write a canonical question and answer that encompasses all aspects of pivoting… But I’m going to give it a go. …
Pandas DataFrame.to_csv raising IOError: No such file or directory
Hi: I am trying to use the Pandas DataFrame.to_csv method to save a dataframe to a csv file: However I am getting the error: Shouldn’t the to_csv method be able to create the file if it doesn’t exist? This is what I am intending for it to do. Answer to_csv does create the file if it doesn’t …
How to calculate factorial in tensorflow?
I am new to tensorflow, I am trying to find a function that calculates the n!. I saw that one can use the gamma function, which was possible with theano, but did not work for tensorflow. I am using a for loop to multiply number from n to 1, but I assume there is an easier and faster way. I
How to reduce the number of training steps in Tensorflow’s Object Detection API?
I am following Dat Trans example to train my own Object Detector with TensorFlow’s Object Detector API. I successfully started to train the custom objects. I am using CPU to train the model but it takes around 3 hour to complete 100 training steps. I suppose i have to change some parameter in .config. I tried…
Python SQL insert statement not working
I am trying to insert Arduino data into a database through Python, however, it will not do it. Basically I am assigning data that I read in from the serial port assigned to my Arduino and storing the first value of it in the variable arduinoData. in my insert statement I am trying to use a string literal to p…
Your CPU supports instructions that this TensorFlow binary was not compiled to use: AVX AVX2
I have recently installed tensorflow (Windows CPU version) and received the following message: Successfully installed tensorflow-1.4.0 tensorflow-tensorboard-0.4.0rc2 Then when I tried to run (which I found through https://github.com/tensorflow/tensorflow) I received the following message: 2017-11-02 01:56:21…
Use zlib.js to decompress python zlib compress
On the server side I use python zlib to compress a string as follows: The result of the previous code is the following On the client side I use zlib.js to decompress I get the following error what am I doing wrong? Answer The problem was coding. in python I used base64 to encode. On the client side: Thank you
The module has been successfully installed but then it’s not found when imported? – Python
I’m trying to use the graphviz Python module and I’ve run into this problem: I pip installed it in my command prompt, but it’s not showing up in IPython. I have additionally a Python 3.5 (32-bit) interpreter where it IS showing up, but I’m trying to figure out how to have it installed …
django ‘str’ object has no attribute ‘_meta’
Sorry for my English. I have some data from another server, but I need to output this data like JSON. if i print response in console: but, if i return this response like HttpResponse i have an error AttributeError: ‘str’ object has no attribute ‘_meta’ this my code: UPD: I tried with t…
Fuzzy matching issue with matching nan values
I have a dataframe called RawDatabase which I am am snapping values to a validation list which is called ValidationLists. I take a specific column from the RawDatabase and compare the elements to the validation list. The entry will be snapped to the entry in the validation list it most closely resembles. The …