Python

Perform incremental learning of XGBClassifier

After referring to this link I was able to successfully implement incremental learning using XGBoost. I want to build a classifier and need to check the predict probabilities i.e. predict_proba() method. This is not possible if I use XGBoost. While implementing XGBClassifier.fit() instead of XGBoost.train() I am not able to perform incremental learning. The xgb_model parameter of the XGBClassifier.fit() takes

How to filter out pandas dataframe rows based on contains condition?

dataframe pandas python

I have below dataframe I have input array, by which i wanted to check df and filter out corresponding data. Output i want Can anyone guide me how can i achieve this ? Answer You can try this –

I can’t catch PageError exception from Wikipedia in discord.py

discord.py python wikipedia

So, i’m making an Wikipedia cog for my discord.py bot and everything is ok if the commands are used as expected, but, if i type something wrong (like “rb!resumen sjsajsajsja”), an PageError exception appears and the code stops. I have tried so many things to catch the exception and send it to the channel or print it in the terminal,

Cenpy Library cannot fetch Pittsburgh, PA data

census python

I am working on a project where I am trying to analyze a lot of ACS census data from Pittsburgh, PA, USA. I can easily go to data.census.gov to grab the data I need for the 138 census tracts I am looking for, but that is simply not efficient. So I downloaded the cenpy library which has been working great

Pandas – Reverse sign of column value based on another value

pandas python

Can anyone suggest how to do this currectly. Currently I am using apply but it obviously goes through each cell and takes ages. list-price – Float ordtype = str (“I”,”C”,”K”) I want all the “C” & “K” values in the column ordtype to be negative (they are currently positive) example code i’m using now: Answer Try with:

How to draw shapes in a graph using nodes and edges in python?

graph python shapes

I need to draw the shapes from the following photo in a graph. I need to transpose the shapes in a graph in Python with nodes and edges. img1 Answer One of the standard tools for defining graphs like this is the DOT language used by Graphviz. You can create DOT graph descriptions and render them with the PyPI package

How to use .join() and .format() together in python

python python-3.x

I am trying to use .join() and .format() together in the same loop, but unable to do so. Sample Data: Filtering out phone number as below: I want to format the phone number in the below format, can anyone suggest me how to pass the below format: Getting output as: tel:123.456.7890 But I want the output as: 123 456 7890

regex lookahead AND look behind

python regex

I have the following 2 variations of scraped data: and I’d like to make one regular expression that gets the percentage as a float, so in the first instance 3.0 and in the second 3.57 I’ve tried this so far: Which works for the variation 2 but not variaton 1. Answer You may try this code to grab your percent

appending string to a list from an other list

python

well, I have 2 lists (names and bilananu2017) names contains the names of companies and bilananu2017 contain a pdf of each company there is some missing links the problem is that names length is 80 and bilananu2017 length is 75 i want both lists to be the same length so I can make a data frame. I have this idea