Sum number of occurences of string per row

Sum number of occurences of string per row

Content Index :

Sum number of occurences of string per row
Tag : python , By : Hans-Inge
Date : November 24 2020, 03:41 PM

will help you I have been trying to search an answer for this and I can't find one - I must be misunderstanding something. , try this,
df1['total']= df1.eq('True').sum(axis=1)
df1['total']= df1.eq(True).sum(axis=1)
df1['total']= df1.sum(axis=1)
   score score2  total
0   True  False      1
1   True   True      2
2  False   True      1

No Comments Right Now !

Boards Message :
You Must Login Or Sign Up to Add Your Comments .

Share : facebook icon twitter icon

Replace occurences of string that contains any number

Tag : ios , By : chorn
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , Regular expressions would do it.
Take a look at NSRegularExpression (iOS >= 4) and this page for how regular expressions work.
// Create your expression
NSError *error = nil;
NSRegularExpression *regex = 
  [NSRegularExpression regularExpressionWithPattern:@"\\b\f[0-9]*\\b"

// Replace the matches
NSString *modifiedString = [regex stringByReplacingMatchesInString:string
                                                         range:NSMakeRange(0, [string length])
                                                  withTemplate:@"replacement string"];

Split a string on the first number occurences

Tag : javascript , By : Nick Coats
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , I didn't get a suitable regex that enable to split such string: , Use:
var result=str.replace(/ (\d+)/gm, ", $1");
 / (\d+)/gm
, $1

Finding the number of occurences of a sub-string in a string without using library functions

Tag : python , By : user123284
Date : March 29 2020, 07:55 AM
I hope this helps you . As you're allowed to use slicing, so you can use that to check whether the character before/after the substring is a space or empty string, if it is then increment count by 1. Note that slices never raise exception, even for out of range indices.
def sub_str_count(s, sub_str):
    le = len(sub_str)
    count = 0
    for i in range(len(s)):
        if s[i:i+le] == sub_str and s[i-1:i] in ('', ' ') and \
                                                       s[i+le:i+le+1] in ('', ' '):
            count += 1
    return count
def check(s, ind):
    Check whether the item present at this index is a space or not.
    For out of bound indices return True.
    For negative indices return True.

    if ind < 0:
        return True
        return s[ind] == ' '
    except IndexError:
        return True

def sub_str_count(s, sub_str):
    le = len(sub_str)
    count = 0
    for i in range(len(s)):
        if s[i:i+le] == sub_str and check(s, i-1) and check(s, i+le):
            count += 1
    return count

extract number of occurences of `!?` in a string

Tag : regex , By : bdurbin
Date : March 29 2020, 07:55 AM
wish help you to fix your issue Let's say I have this string: S=hello !? how ?! are you ?!?! fine!?!?! thanks !?!?!? bye ?!?!?! bye ! , the regex
str = 'hello !? how ?! are you ?!?! fine!?!?! thanks !?!?!? bye ?!?!?! bye !';
expression = '\s(!\?)\s';
matchStr = regexp(str, expression, 'match')

How to count occurences of number in string?

Tag : javascript , By : Mario Tristan
Date : March 29 2020, 07:55 AM
should help you out You can use reduce and Map
split string on , loop through array and count occurrence of each number Loop through the entries of mapper and sort them if needed in ascending order, if you need in the same order as in input than don't sort it map though the entries to form `number(repetition) form join them by ,
let str ="1,2,3,3,3,4,5,1,4,3,5,2"

function counter(str){
  let mapper = str.split(',').reduce((op,inp)=>{
    op.set(inp, (op.get(inp) || 0 ) + 1)
    return op
  },new Map())

  return [...mapper]
         .sort((a,b)=>a[0]-b[0])  // if you need in always in ascending order

Related Posts Related QUESTIONS :
  • logout a user from the system using a function in python
  • mp4 metadata not found but exists
  • Django: QuerySet with ExpressionWrapper
  • Pandas string search in list of dicts
  • Decryption from RSA encrypted string from sqlite is not the same
  • need of maximum value in int
  • a list of several tuples, how to extract the same of the first two elements in the small tuple in the large tuple
  • Display image of 2D Sinewaves in 3D
  • how to prevent a for loop from overwriting a dictionary?
  • How To Fix: RuntimeError: size mismatch in pyTorch
  • Concatenating two Pandas DataFrames while maintaining index order
  • Why does this not run into an infinite loop?
  • Python Multithreading no current event loop
  • Element Tree - Seaching for specific element value without looping
  • Ignore Nulls in pandas map dictionary
  • How do I get scrap data from web pages using beautifulsoup in python
  • Variable used, golobal or local?
  • I have a regex statement to pull all numbers out of a text file, but it only finds 77 out of the 81 numbers in the file
  • How do I create a dataframe of jobs and companies that includes hyperlinks?
  • Detect if user has clicked the 'maximized' button
  • Does flask_login automatically set the "next" argument?
  • Indents in python 3
  • How to create a pool of threads
  • Pandas giving IndexError on one dataframe but not on another similar dataframe
  • Django Rest Framework - Testing client.login doesn't login user, ret anonymous user
  • Running dag without dag file in airflow
  • Filling across a specified dimension of a numpy array
  • Python populating dataframe in pandas from text files
  • How to interpolate a single ("non-piecewise") cubic spline from a set of data points?
  • Divide 2 integers (leetcode 29) - recursion issue
  • Can someone explain why do I get this output in Python?
  • How do I scrape pdf and html from search results without obvious url
  • Is there a way to automatically make a "collage" of plots with matplotlib?
  • How to combine multiple rows in pandas with shared column values
  • How do I get LOAD_CLASSDEREF instruction after dis.dis?
  • Django - How to add items to Bootstrap dropdown?
  • Linear Regression - Does the below implementation of ridge regression finding coefficient term using gradient method is
  • How to drop all rows in pandas dataframe with negative values?
  • Most Efficient Way to Find Closest Date Between 2 Dataframes
  • Execution error when Passing arguments to a python script using os.system. The script takes sys.argv arguments
  • Looping through a function
  • Create a plot for each unique ID
  • a thread python with 'while' got another thread never start
  • Solution from SciPy solve_ivp contains oscillations for a system of first-order ODEs
  • trigger python events driven by selenium controlled browser
  • Passing line-edits to a contextmanager to set validators
  • Python: globals().items() iterations try to change a dict
  • Is it possible to specify starting values for each parameter (instead of bounds) for scipy's differential evolution?
  • why datetime.now() and constructed datetime using all fields(like year,month...) of now has big timedelta?
  • MySQL multiple table UPDATE query using sqlalchemy core?
  • find if a semantic version is superset of of another version python
  • Type checking against dynamically created objects
  • Struggling with simple reverse function
  • Is there a function for finding the midpoint of n points on sklearn.neighbors.NearestNeighbors?
  • How to set max number of tweets to fetch
  • PYTHON 3.7.4 NOT USING SQLITE 3.29.0
  • How to replace Nan value with zeros in a numpy array?
  • How to speed up calculating variance among sparse matrix
  • cupy code is not fast enough compared with numpy
  • How to count frequency of select values in Python pandas dataframe
  • shadow
    Privacy Policy - Terms - Contact Us © scrbit.com