How to describe an array close to a specific value quantitatively?
I have numbers of array range from 0 to 1. Now I want to describe these arrays by the standard that the more the number and bigger of data in the array close to 1 the array is better. According to the standard, we can identify that A1 is better than A2.
So I was wondering whether there is a parameter which can describe the problem quantitatively. Thanks!
See also questions close to this topic
Getting more than 4294967295 objects in an Array
I want to create a 64 bit array, whose limit is endless. But the 32 bit array limits to only 4,294,967,295 objects. I also get an error when I use the push function on an Array with the length 4,294,967,295 :
Invalid array lengthHow can I create a 64 bit array?
Check the value of all variables inside an php file
<?php include 'phpinfoip.php'; if (in_array($_SERVER['REMOTE_ADDR'], $ip)) if (in_array('1', $ip, true)) ?>
<?php $ip = array('127.0.0.1', '1'); ?>
I would like to check one value in all variables inside the file, without having to call them by name ($ip1, $ip2... etc) to apply the following logic:
if xxx variables has the array value = 1
Run the code
In other words, I would like to get something like:
<?php include 'phpinfoip.php'; if (in_array($_SERVER['REMOTE_ADDR'], $ip)) if (in_array('1', $allvariables, true)) ?>
How can I fix a value error in a numpy array in python?
So I got this piece of code but when I run it I get this error:
ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()
The error is in this line:
if screen[25, 25] != white:
This is my code:
from PIL import ImageGrab import numpy as np import cv2 def main(): while(True): screen = np.array(ImageGrab.grab(bbox=(770,210,820,260))) cv2.imshow('detectionScreen',cv2.cvtColor(screen, cv2.COLOR_BGR2RGB)) white = np.array([255, 255, 255]) print(screen[25, 25]) print(white) if screen[25, 25] != white: print('White') if cv2.waitKey(25) & 0xFF == ord('q'): cv2.destroyAllWindows() break main()
Any help with this error would be appreciated since I'm a complete beginner regarding numpy.
Curve Fitting Second derivative Gaussian
I have the following two columns with data 'X' and 'Y'. I need to do a fit based on the 2nd derivative of Gaussian (Mexican hat). Also, the fitting procedure should be able to give out the parameters in a cell for different spectrums. I have huge amounts of different data (also contains NaN) but important for me is to use exactly the same FWHM for all fittings. So, the fitting procedure should have a possibility for this constraint. I thought to get an expert opinion on this for an efficient solution with very less computing time. Please, for a testing as large dataset, just repeat both columns for a bigger range. (availability= 'nlinfit') Thank you very much!
X Y 9 -0.2047 10 -0.2014 14 -0.2944 22 -0.4893 27 -0.5433 32 -0.47 37 -0.2516 56 1.1604 63 1.4507 71 1.1809 91 -0.3434 99 -0.7094 102 -0.7002 106 -0.5832
For loop storing values in MATLAB
I have asked a similar question before, see,
I am storing the results from a for loop but this time my for loop numbers do not increase by one each time.
%% for q = [25,50,100,250,500,5000] ActualTable(:,q)=ActualValues; end
As you will see this code runs but it has large portions of rows in the matrix
ActualTablewhich only contain
0's I would just like the rows that contain non-zero. So it is saving every single row from 25 to 5000 and only inserting my values in the
25, 50, 100etc rows with all other rows containing a zero.
Building table with specifik data
I need some help with a task that I have:
I have 4 vectors with data: 3 of them are with dates and the 4th one is with overdue days, something like this:
dateAdded dueDate date overdue Published 02/11/18 02/11/18 03/11/18 1 03/11/18 04/11/18 11/11/18 7 03/11/18 04/11/18 04/12/18 30 04/11/18 05/11/18 ongoing overdue up to today
Can you give me some tips how can I create a table with the overdue days for each month from the year, considering that when I have transition from one month to another one I have to count the overdue to both months? Also when the datePublished hasn't come yet I have to count the overdue dates for each month passed.