Wednesday 23 June 2021

HANDLING MISSING DATA (FillNa) IN PANDAS



Firstly, we are importing an excel sheet as a DataFrame,
 

import pandas as pd
ds = pd.read_excel("C:\\Users\\mahes\\OneDrive\\Documents\\Students.xlsx")
dt = pd.DataFrame(ds)
print(dt)








Now, Let's perform some operations related to FillNa()











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HANDLING MISSING DATA (dropna) IN PANDAS


Firstly, we are importing an excel sheet as a DataFrame,
 

import pandas as pd
ds = pd.read_excel("C:\\Users\\mahes\\OneDrive\\Documents\\Students.xlsx")
dt = pd.DataFrame(ds)
print(dt)






Now, Let's perform some operations related to DROPNA


















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ILOC[ ] IN PANDAS - PYTHON

Firstly, we are importing an excel sheet as a DataFrame,
 
import pandas as pd

ds = pd.read_excel("C:\\Users\\mahes\\OneDrive\\Documents\\Students.xlsx")

dt = pd.DataFrame(ds)






Now, Let's perform some operations related to ILOC 












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LOC[ ] IN PANDAS - PYTHON



LOC[ ] IN PANDAS

Firstly, we are importing an excel sheet as a DataFrame,
 
import pandas as pd

ds = pd.read_excel("C:\\Users\\mahes\\OneDrive\\Documents\\Students.xlsx")

dt = pd.DataFrame(ds)







Now, Let's perform some operations related to LOC and ILOC 














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Tuesday 22 June 2021

EXPORT DATAFRAME TO EXCEL, CSV & TEXT FILE IN PANDAS || SAVE DATAFRAME IN PANDAS

EXPORT DATAFRAME TO EXCEL, CSV & TEXT FILE IN PANDAS 

Firstly, we are importing an excel sheet as a DataFrame,
 
import pandas as pd

st = pd.read_excel("C:\\Users\\mahes\\OneDrive\\Documents\\Students.xlsx")

sd = pd.DataFrame(st)

print(st)



Making some changes in the dataframe


st['Total']=st['Hindi']+st['English'] +st['Science'] +st['History']+st['Mathematics']






Now, exporting the DataFrame as Excel, CSV and Text File


sd.to_excel("C:\\Users\\mahes\\OneDrive\\Desktop\\StudentsNew.xlsx")

sd.to_csv("C:\\Users\\mahes\\OneDrive\\Desktop\\StudentsNew.csv")

sd.to_csv("C:\\Users\\mahes\\OneDrive\\Desktop\\StudentsNew.txt" ,sep = "\t")





As you can see we have created three new files.






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SORTING DATAFRAME (BY COLUMN) IN PANDAS (Part-2) - PYTHON PROGRAMMING


#SORTING DATAFRAME (BY COLUMN) IN PANDAS (Part-2) - PYTHON PROGRAMMING

Listing Two Rows


df[['Name','Total_Marks']]





df = df.drop(columns = "Total_Marks")
print(df)









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MANIPULATING DATAFRAME IN PANDAS (ADD COLUMN , DROP COLUMN) || DATAFRAME MANIPULATIONS


import pandas as pd 
dt = pd.read_excel("C:\\Users\\mahes\\OneDrive\\Documents\\Students.xlsx")
df = pd.DataFrame(dt)
print(df)




df['Total_Marks'] = 0
print(df)




df['Total_Marks'] = df['Hindi']+df['English']
df







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SORTING DATAFRAME (BY COLUMN) IN PANDAS - PYTHON PROGRAMMING

#SORTING DATAFRAME (BY COLUMN) IN PANDAS 


#clcoding

import pandas as pd

dt = pd.read_excel("FILE_NAME")

print(dt)

df = pd.DataFrame(dt)

df.sort_values("MAXMTEMPERATURE", ascending = False)










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Monday 21 June 2021

How do you reverse the string without take another string?



#How do you reverse the string without take another string?
#clcoding
s = 'hello'
n = -1
for x in s:
    n += 1
while n >= 0:
    print(s[n], end = '')
    n -= 1








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Sunday 20 June 2021

MATHEMATICAL FUNCTIONS ON SERIES IN PANDAS [Boolean Functions] - PYTHON PROGRAMMING


1] Greater than

import pandas as pd

s1 = pd.Series([10,20,120,40,150])

s2 = pd.Series([70,80,90,100,110])

s1>(s2)




2] Less than

import pandas as pd

s1 = pd.Series([10,20,120,40,150])

s2 = pd.Series([70,80,90,100,110])

s1<(s2)





3] Equal to

import pandas as pd

s1 = pd.Series([10,20,120,40,150])

s2 = pd.Series([70,20,90,40,110])

s1==(s2)





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MATHEMATICAL FUNCTIONS ON SERIES IN PANDAS [Part 1] - PYTHON PROGRAMMING


1] Addition 

#clcoding
import pandas as pd

s1 = pd.Series([10,20,30,40,50])

s2 = pd.Series([70,80,90,100,110])

 s1.add(s2)







2] Subtraction

import pandas as pd

s1 = pd.Series([10,20,30,40,50])

s2 = pd.Series([70,80,90,100,110])

s1.subtract(s2)




 
3] Multiplication

import pandas as pd

s1 = pd.Series([10,20,30,40,50])

s2 = pd.Series([70,80,90,100,110])

s1.multiply(s2)







4] Division

import pandas as pd

s1 = pd.Series([10,20,30,40,50])

s2 = pd.Series([70,80,90,100,110])

s1.divide(s2)

        
 
                                                                      

   

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Saturday 19 June 2021

ATTRIBUTES OF SERIES IN PANDAS - PYTHON PROGRAMMING

ATTRIBUTES OF SERIES IN PANDAS


Index - Series.index - Return all index values
Array - Series.array - Return all index values
Values - Series.values - Return values of series
Name - Series.name - Return the name of Series
Shape - Series.shape - Return the shape
Ndim - Series.ndim - Return the dimension of series
Size - Series.size - Return the size of series
Nbytes - Series.nbytes - Returns the memory occupied
memory-usage - Series.memory-usage() - Returns memory occupied by both index & values






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Friday 18 June 2021

How do you find dayname of particular date of year?






#How do you find dayname of particular date of year?

#Clcoding

import calendar as cal

dayname = ['MONDAY', 'TUESDAY', 'WEDNESDAY', 'THURSDAY', 
          'FRIDAY', 'SATURDAY', 'SUNDAY']

inx = cal.weekday(2021,6,18)

dayname[inx]






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Thursday 17 June 2021

How to make a text in python colorfull.





#how to make a text in python colorfull. 
#clcoding
print("\033[92mIf you like this post, Upvote it")    
print("\033[96mIf you like this post, Upvote it")    
print("\033[93mIf you like this post, Upvote it")    
print("\033[95mIf you like this post, Upvote it")    
print("\033[1mIf you like this post, Upvote it")    
print("\033[4mIf you like this post, Upvote it")    
print("\033[94mIf you like this post, Upvote it")  


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How to use class and method without creating object




#How to use class and method without creating object

#clcoding

class fruit:

    def is_sweet():

        return True
    
if fruit.is_sweet():
        print("Yes")
else:
        print("No")




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How do you find which string largest between two strings?



#HOW TO WHICH STRING IS LARGEST BETWEEN TWO STRINGS


#clcoding

str1 = 'Clcoding'

str2 = 'ClcodingPython'

max(str1,str2)





#HOW TO WHICH STRING IS LARGEST BETWEEN TWO STRINGS

#clcoding

str1 = 'Clcoding'

str2 = 'ClcodingPython'

if str1>str2:

    print(str1,'is the largest string')

else:

    print(str2,'is the largest string')




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Tuesday 15 June 2021

Login with Retrofit in android Studio with SourceCode | Login and Registration form in android using JSON example

 Build.gradle File:-  
 
implementation 'com.google.android.material:material:1.3.0'
implementation 'com.squareup.retrofit2:retrofit:2.8.1'
implementation 'com.squareup.retrofit2:converter-gson:2.8.1'
implementation 'com.squareup.okhttp3:logging-interceptor:4.6.0'
 
 Activity-main 
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:orientation="vertical"
android:background="@color/colorWhite"
android:layout_height="match_parent"
tools:context=".MainActivity">
<TextView
android:layout_width="wrap_content"
android:text="Login to continue"
android:layout_marginTop="100dp"
android:textSize="24sp"
android:layout_gravity="center_horizontal"
android:textColor="@color/colorPrimaryDark"
android:layout_height="wrap_content" />

<com.google.android.material.textfield.TextInputLayout
android:layout_width="match_parent"
android:layout_marginTop="30dp"
android:layout_marginStart="30dp"
android:layout_marginEnd="30dp"
android:hint="Username"
android:layout_height="wrap_content">

<com.google.android.material.textfield.TextInputEditText
android:layout_width="match_parent"
android:inputType="text"
android:id="@+id/edUsername"
android:layout_height="wrap_content" />

</com.google.android.material.textfield.TextInputLayout>
<com.google.android.material.textfield.TextInputLayout
android:layout_width="match_parent"
android:layout_marginTop="30dp"
android:hint="Password"
android:layout_marginStart="30dp"
android:layout_marginEnd="30dp"
android:layout_height="wrap_content">
<com.google.android.material.textfield.TextInputEditText
android:layout_width="match_parent"
android:inputType="textPassword"
android:id="@+id/edPassword"
android:layout_height="wrap_content" />
</com.google.android.material.textfield.TextInputLayout>
<Button
android:layout_width="match_parent"
android:layout_margin="30dp"
android:text="Login"
android:id="@+id/btnLogin"
android:background="@color/colorPrimary"
android:textColor="@color/colorWhite"
android:layout_height="wrap_content" />
</LinearLayout
 
 Java File :-
 
1. Api Client 
 
import okhttp3.OkHttpClient;
import okhttp3.logging.HttpLoggingInterceptor;
import retrofit2.Retrofit;
import retrofit2.converter.gson.GsonConverterFactory;

public class ApiClient {

private static Retrofit getRetrofit(){

HttpLoggingInterceptor httpLoggingInterceptor = new HttpLoggingInterceptor();
httpLoggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);

OkHttpClient okHttpClient = new OkHttpClient.Builder().addInterceptor(httpLoggingInterceptor).build();

Retrofit retrofit = new Retrofit.Builder()
.addConverterFactory(GsonConverterFactory.create())
.baseUrl("http://api.irawen.net/") //Change server URL
.client(okHttpClient)
.build();

return retrofit;
}


public static UserService getUserService(){
UserService userService = getRetrofit().create(UserService.class);

return userService;
}

}

2. Login Request :-
 
public class LoginRequest {

private String username;
private String password;

public String getUsername() {
return username;
}

public void setUsername(String username) {
this.username = username;
}

public String getPassword() {
return password;
}

public void setPassword(String password) {
this.password = password;
}
}

3. Login response :- 
 
public class LoginResponse {


private int user_id;
private String email;
private String username;

public int getUser_id() {
return user_id;
}

public void setUser_id(int user_id) {
this.user_id = user_id;
}

public String getEmail() {
return email;
}

public void setEmail(String email) {
this.email = email;
}

public String getUsername() {
return username;
}

public void setUsername(String username) {
this.username = username;
}
}
 
4. Main Activity :-
 import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.text.TextUtils;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

import com.google.android.material.textfield.TextInputEditText;

import androidx.appcompat.app.AppCompatActivity;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;

public class MainActivity extends AppCompatActivity {


TextInputEditText username, password;
Button btnLogin;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

username = findViewById(R.id.edUsername);
password = findViewById(R.id.edPassword);
btnLogin = findViewById(R.id.btnLogin);

btnLogin.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {

if(TextUtils.isEmpty(username.getText().toString()) || TextUtils.isEmpty(password.getText().toString())){
Toast.makeText(MainActivity.this,"Username / Password Required", Toast.LENGTH_LONG).show();
}else{
//proceed to login
login();
}

}
});
}


public void login(){
LoginRequest loginRequest = new LoginRequest();
loginRequest.setUsername(username.getText().toString());
loginRequest.setPassword(password.getText().toString());

Call<LoginResponse> loginResponseCall = ApiClient.getUserService().userLogin(loginRequest);
loginResponseCall.enqueue(new Callback<LoginResponse>() {
@Override
public void onResponse(Call<LoginResponse> call, Response<LoginResponse> response) {

if(response.isSuccessful()){
Toast.makeText(MainActivity.this,"Login Successful", Toast.LENGTH_LONG).show();
LoginResponse loginResponse = response.body();

new Handler().postDelayed(new Runnable() {
@Override
public void run() {

startActivity(new Intent(MainActivity.this,DashboardActivity.class).putExtra("data",loginResponse.getUsername()));
}
},700);

}else{
Toast.makeText(MainActivity.this,"Login Failed", Toast.LENGTH_LONG).show();

}

}

@Override
public void onFailure(Call<LoginResponse> call, Throwable t) {
Toast.makeText(MainActivity.this,"Throwable "+t.getLocalizedMessage(), Toast.LENGTH_LONG).show();

}
});


}

}

5. User Service :-
import retrofit2.Call;
import retrofit2.http.Body;
import retrofit2.http.POST;

public interface UserService {


@POST("authenticate/")
Call<LoginResponse> userLogin(@Body LoginRequest loginRequest);


}

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