I’m following this tutorial from Nabeel Ahmed to create your own emotion detector using Keras (I’m a noob) and I’ve found a strange behaviour that I’d like to understand. The input data is a bunch of 48×48 images, each one with an integer value between 0 and 6 (each number stands …
How to make a Confusion Matrix with Keras?
I have trained my model (multiclass classification) of CNN using keras and now I want to evaluate the model on my test set of images. Is there a way to create confusion matrix? Answer Thanks for answers. I did like this:
How to remove timestamp from datetime column in pandas Style Object
I have a DataFrame with a Date column that has no timestamp: But once I apply style to another column in the df, e.g. : The DataFrame becomes a Style Object, and the “Date” column gets a timestamp that it didn’t have before, as the following: I tried the following to strip the timestamp from…
TypeError: ‘<' not supported between instances of 'str' and 'int' after converting string to float
Using: Python in Google Collab Thanks in Advance: I have run this code on other data I have scraped FBREF, so I am unsure why it’s happening now. The only difference is the way I scraped it. The first time I scraped it: url_link = ‘https://fbref.com/en/comps/Big5/gca/players/Big-5-European-Leagues…
A request to the Telegram API was unsuccessful. The server returned HTTP 403 Forbidden
I have the telegram bot written on telebot package on python. From 03/01/2021 worked without problems. Main task of this bot parse information from documents sent by users. It also handles some commands. All other types of data forward from the user to the developer. On January 17, 2022, 5 entries with an err…
Gaussian Process Regression: tune hyperparameters based on validation set
In the standard scikit-learn implementation of Gaussian-Process Regression (GPR), the hyper-parameters (of the kernel) are chosen based on the training set. Is there an easy to use implementation of GPR (in python), where the hyperparemeters (of the kernel) are chosen based on a separate validation set? Or cr…
Extracting key and value from tuple of dictionaries (taken from json file) in python
I have a JSON file which is a tuple of multiple dictionaries and I want to extract keys and values from some of them. The file looks something like this (this is just an example of the structure with random keys and values): What I want to extract all names (Ana, Bob, Chloe) and their ids something like this:…
How to filter column names from multiindex dataframe for a specific condition?
How to filter level[0] column name list where comparions = False from the dataframe df_final(consider there are more than 300 column like this at level 0) Answer First test if in level comparions are all Trues by DataFrame.xs with DataFrame.all: And then invert mask for test at least one False with filter ind…
How can I animate a histogram of occurrences using Plotly Python?
I want to animate a histogram over a DataFrame index, so that as the index increases, the bins fill up. My DataFrame is structured like this: Index Ingredient 1 Onions 2 Onions 3 Garlic 4 Onions 5 Tomato 6 Tomato 7 Onions At the beginning of the animation, all bins should be initialized at 0, and fill up as t…
Unable to convert tensorflow.python.framework.ops.Tensor object to numpy array for passoing it in sklearn.metrics.cohen_kappa_score function
I thought of implementing kappaScore metrics using sklearn.metrics.cohen_kappa_score Error I get when I try to run this code: Here the type of y_true and y_pred requires to be in list or numpy array But the type of y_true and y_pred are, When directly try to print it (i.e, without type() function), it shows l…