I'm running GridSearchCV on XGBoost model to tune some parameters. My target variable is binary. When I use, 'recall' or 'precision' as scoring metric...

For example: import matplotlib.pyplot as plt import numpy as np x = np.arange(0.0,1.2,0.2) y = np.arange(0.0,1.2,0.2) labels = np.arange(0.0,1.2,0.2...

Using seaborn i am generating heatmaps for various series of a DataFrame. The main code that I use is the following: def plot_heatmap(data, cmap, x_la...

I was looking to write linspace function of NumPy. As the loops are faster in compiled code, tried writing in C and calling from Raku. // C code #inc...

Observe the following case php -r 'echo 4.60*100, " ", (int)(4.60*100), PHP_EOL;' Surprisingly (to me) it prints this: 460 459 I understand that decim...

I am looking for testing output of my function (which returns array) with the expected output array. Example: use Test; sub myoutput($n) { (1..$n)...

I have a program here to approximate the value of pi using a series, and need it to output pi to a certain degree of accuracy, I have chosen 16 digits...

How to handle rounding errors in solidity code? Avoid precision loss or keep track of precision losses. Example, if i have some calculated(includes a ...

I'm parsing SVN logs and they contain date/time with this format 2023-09-23T23:08:30.383815Z. I need to convert this to a time object (supposed std::c...

I am trying to format the dataframe using https://pandas.pydata.org/docs/reference/api/pandas.io.formats.style.Styler.format.html. But, I am not getti...

I have a class which has several float properties class BodyParameters { public float Weight { get; set; } public float Height { get; set; } ...

Background: usually floating-point arithmetic is implemented using integer arithmetic (for example, Berkeley SoftFloat). Per ARM pseudocode [1] floati...

Background: usually floating-point arithmetic is implemented using integer arithmetic (for example, Berkeley SoftFloat). Per ARM pseudocode [1] floati...

I want to convert a progress's Double value ranging from 0 to 1 into a nicely formatted String with a selected amount of fraction digits, e.g. 0.78912...

I have gems clickhouse 0.1.10, clickhouse-activerecord 0.5.14, pg 1.4.6 and rails 7.0.4.3. ClickHouse server version 23.4.2.11, postgresql server 15.3...

After upgrading to EF Core 6, I have this annoying warning here when adding a migration: No store type was specified for the decimal property '{proper...

I'm trying to find the precision and recall for the confusion matrix given below, but an error occurred. How would I accomplish it using Numpy and Skl...

I get an average of precision 82.59 and recall 69.84 using bboxPrecisionRecall for segmenting Arabic words algorithm. I need a help as to calculate TN...

I am building a recommendation system for my company and have a question about the formula to calculate the precision@K and recall@K which I couldn't ...

I am in the middle of migrating some queries which have been running for ages with MySQL database which is now in Postgres having the same structure. ...

When defining tick labels I get an abnormally high level of precision. For example: import pylab as pl fig = pl.figure(figsize=(3.25, 2.5)) ax0 = f...

According to the Microsoft documentation for the DATETIME column type, values of that type can store "accuracy rounded to increments of .000, .003, or...

I am using the logging module from Python and I need to get information about the starting and ending time of different functions calls. For this, I a...

My teacher said that in a graph I must label the axis like 0, 0.25, 0.5 not 0.00,0.25,0.50,.... I know how to label it like 0.00,0.25,0.50 (plt.ytick...

This is a question related to both Entity Framework and SQL Server (2016). I've noticed some strange behaviour in SQL server when summing a decimal c...