Easy way to reshape 1D numpy arrays into 2D
X = X.reshape(X.shape[0],-1)
Windows Server 2019 Datacenter Virtual Machine Activation Guide
Install Windows Server from the DVD or from .iso file downloaded from here Start Power Shell as administrator. Right click on Start (Windows) button in the bottom-left corner, then click “Windows PowerShell (Admin) In PowerShell type with your Activation key: slmgr.vbs /ipk *****-*****-*****-*****-***** Press Enter and restart computer Now you are ready to install HyperV … Read more
TypeError: ‘int’ object is not iterable
For all noobs like me. If you get this error, you most probably doing one stupid thing like I did: where y2.shape[0] is just an integer. Remember, we can iterate only through lists or other sequences. When we would like to repeat a certain action X number of times we should do the following: If … Read more
Merge 2 pandas dataframes while keeping the whole spectrum of values
Adding ‘how=’outer’ to ‘pd.merge()’ will actually do the job! Here’s a very good comprehensive article about Panda’s Join, Merge and Concatenate. And by the way, if you would like to fill NA values when merging, just add ‘.fillna(‘0′)’, in this case it will fill NA values with zeroes.
pandas.to_datetime() sometimes swaps days and months. Simple solution
Results in beautiful Instead of Who’d want to format date like this… 😕
Split categorical column into multiple columns with values from another column
Turns out it’s quite simple if you know the right pandas methods. There’s a simple way to split categorical column into multiple columns with panda’s get_dummies. That is one separate column for each category. Yes, all done automatically. Now we have a bunch of columns with category name in the column names and 0’s and … Read more
WordPress not showing subcategories in URL (permalinks)
It’s been a while since I’ve been using WordPress. It’s still my favourite blogging platforms, so I didn’t hesitate and chosen WP for my new blog that you are reading right now. I also really recommend it to anyone who want to create their own blog or website. It’s great! Now on to the issue … Read more
Convert to Timestamp (DateTime) pandas time column with dates sliced in-between as headers
Hey guys. Being pretty average at Pandas, yesterday I stumbled upon a formatting challenge. I download some datasheets from the web for machine learning from time to time. This time I got some weird Time & date formatting which might’ve been good for regular use with Excel but unsuitable when it comes to Neural Networks: … Read more