Ask Ghassem - Recent questions in Programming

Which code has best runtime and why?(the one commented or the other one)

Fri, 02 Sep 2022 14:39:49 +0000

# for key, value in dict.items():
            #     if value >= long:
            #         long = value
            #         long_name = key
            #     if value < short:
            #         short = value
            #         short_name = key
        long = max(dict.values())
        long_name = max(dict, key=dict.get)
        short = min(dict.values())
        short_name = min(dict, key=dict.get)

how to output f1-score instead of accuracy

Sat, 02 Apr 2022 13:04:21 +0000

I have the code below, outputting the accuracy. How can I output the F1-score instead? Thanks in advance,

 clf.fit(data_train,target_train)  
preds = clf.predict(data_test)  
# accuracy for the current fold only     
r2score = clf.score(data_test,target_test)

I cannot get this code to work. please help.

Mon, 21 Mar 2022 05:59:53 +0000

from keras.models import Sequential
from keras.layers import Dense
from keras.layers import LSTM
from sklearn.model_selection import train_test_split

model = Sequential()
model.add(LSTM( 10, input_shape=(1, 1)))
model.add(Dense(1, activation="linear"))
model.compile(loss="mse", optimizer="adam")

X, y = get_data()

X_train, X_test, y_train, y_test = train_test_split(x, y, test_size=0.2, random_state=1)
X_train_2, X_val, y_train_2, y_val = train_test_split(X_train, y_train, test_size=0.25, random_state=1)

model.fit(X_train, y_train, epochs=800, validation_data=(X_val, y_val), shuffle=False)

html, body, table, thead, input, textarea, select {color: #bab5ab!important; background: #35393b;} input[type="text"], textarea, select {color: #bab5ab!important; background: #35393b;} [data-darksite-inline-background-image-gradient] {background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5))!important; -webkit-background-size: cover!important; -moz-background-size: cover!important; -o-background-size: cover!important; background-size: cover!important;} [data-darksite-force-inline-background] * {background-color: rgba(0,0,0,0.7)!important;} [data-darksite-inline-background] {background-color: rgba(0,0,0,0.7)!important;} [data-darksite-inline-color] {color: #fff!important;} [data-darksite-inline-background-image] {background-image: linear-gradient(rgba(0,0,0,0.3), rgba(0,0,0,0.3))!important}

Looking for program to graph a network with 2 clusters.

Fri, 28 Aug 2020 09:46:16 +0000

I'm a PhD student using qualitative content analysis to look at a number of documents to identify a norm cluster. The structure of the norms I'm trying to look at is that "ideations" link to "behaviors". I've coded the documents so that I know I have a spreadsheet with the coded behaviors in rows and the ideations in columns. The number in a cell then shows the overlap between a behavior and an ideation.

I'm looking for a program that would allow me to graphically portray this so that the ideations appear as bubbles clustered together, size dependent upon the number of times they were coded, with all behaviors clustered together in the same way and lines (size dependent on the strength of the connection) connecting the two. A simple example of this can be found on page 28 of this (problem is constant in my question).

Thanks in advance for any answers.

How to print confusion matrix if I am using stratifiedkfold method?

Thu, 06 Aug 2020 21:41:19 +0000

I am facing the error after importing torch module in python. How can I solve it? The error link is given below

Fri, 31 Jul 2020 14:56:42 +0000

https://ibb.co/MgXvrkL

How to split into train and test using PKL file?

Thu, 30 Jul 2020 22:08:47 +0000

Suggestion For Model

Sun, 19 Jul 2020 19:49:48 +0000

How to create def for cross_val_score related to linear regression problem?

Wed, 03 Jul 2019 13:37:35 +0000

def cross_val_score(estimator,X,y,scoring,cv):
    scores=cross_val_score
    scores_rmse=np.sqrt(-scores)
    print('Scores: ',scores_rmse)
    print("Mean:", scores_rmse.mean())
    print("Standard deviation:", scores_rmse.std())

This is the def I created and passed to below

cross_val_score(SGDRegressor,X_train,y_train,scoring='neg_mean_squared_error',cv=5)

I am getting below error...

ValueError                                Traceback (most recent call last)
<ipython-input-181-275d240df219> in <module>()
----> 1 plot_validation_curve(lin_reg_SGD,X_train,y_train,'alpha', [0.001,0.01],scoring='neg_mean_squared_error',cv=5)
3 frames

/usr/local/lib/python3.6/dist-packages/sklearn/utils/validation.py in check_consistent_length(*arrays)
    203     if len(uniques) > 1:
    204         raise ValueError("Found input variables with inconsistent numbers of"
--> 205                          " samples: %r" % [int(l) for l in lengths])
    206 
    207 

ValueError: Found input variables with inconsistent numbers of samples: [13903, 13903, 22]
SEARCH STACK OVERFLOW

What are some best features of Python3 in comparison to Python2?

Mon, 20 May 2019 16:11:31 +0000

Python3 and Python2 seems so similar, and the only changes which are obvious are some changes in functions such as print that now needs parentheses. Are there other improvements?

How to convert equations in documents to LaTeX?

Sat, 13 Apr 2019 00:51:10 +0000

In Wikipedia, or any other document there are some math equations I am looking a simple way to convert to LaTeX. Is there any easy way for it?

Who can write a recursive Python program for Fibonacci sequence 0,1,1,2,3,5,8,...?

Fri, 15 Mar 2019 20:33:17 +0000

Please also check if the fibo(7) = 8

How to use Watson Assistant V2 in my nodejs code?

Sun, 24 Feb 2019 01:53:25 +0000

I wanted to use Watson Assistant V2 in my following nodejs code, but it cannot be found and gave me error.

var AssistantV2 = require('watson-developer-cloud/assistant/v2'); // Watson SDK

What should I do?

What are Decorators?

Mon, 29 Oct 2018 22:59:50 +0000

What is a Magic class methods ?

Mon, 29 Oct 2018 22:57:15 +0000

If s='Sammy' what is the output of s[2:]?

Mon, 29 Oct 2018 22:54:58 +0000

How do I create comments in my code?

Mon, 29 Oct 2018 22:45:18 +0000

Hey, anyone knows how to save workspace in jupyter python? I would like to save the variables and functions, etc.

Wed, 24 Oct 2018 13:53:22 +0000

ploting the xticks to be datatime

Sat, 20 Oct 2018 00:47:40 +0000

I have a dataframe like below

                    MT_001	    MT_002	    hour
2012-01-01 00:15:00	3.807107	22.759602	00:15:00
2012-01-01 00:30:00	5.076142	22.759602	00:30:00
2012-01-01 00:45:00	3.807107	22.759602	00:45:00
2012-01-01 01:00:00	3.807107	22.759602	01:00:00
2012-01-01 01:15:00	5.076142	22.048364	01:15:00

I can easily plot it using

data.plot()
plt.show()

However, this doesn't show the xlabel. What if i want to see the graph where the xlabel shows the ticks with 4 hours apart?

How can you tell a Python library is a good one and useful?

Fri, 19 Oct 2018 03:46:23 +0000

If a big company such as Google behind it, with high probability it is a great library such as TensorFlow. But in general how can I found out?

In a dataframe of a size (5,10) with random values, how to have exactly 5 NAN values in each row?

Wed, 17 Oct 2018 16:49:07 +0000

plotting categorical radio

Wed, 17 Oct 2018 02:25:36 +0000

Hello,

I am trying to gain insight of the data but having hard time plotting it.

Suppose I have a data frame like below

ID	Feature 1	Class
1	a	good
2	a	good
3	b	good
4	b	bad
5	a	bad
6	a	bad
7	b	bad

In the above dataframe I have one feature "a" and "b" each has a good and bad class value.

for e.g

feature "a" has 2 good and 2 bad classes

feature "b" has 1 good and 2 bad classes

How do i visualize this and plot it in python ?
How would I do it for more than one features in different subplots?

Sorry if this question seems like a very basic question to ask

My own transformation for dropping feature doesn't work

Wed, 17 Oct 2018 00:52:29 +0000

I made my own transformation to drop some of the features not required in the dataframe but I can't seem to get it working. Thoughts ?

https://repl.it/@Neo_sauga/HarmfulNearApplicationstack

How to fetch the data from a url using Python?

Mon, 15 Oct 2018 20:19:08 +0000

I am not sure why my below code is not working any thoughts ?

https://repl.it/@Neo_sauga/UnselfishFatBrains

How to force Jupyter Notebook to print all the variables in each cell, not just the last one?

Thu, 11 Oct 2018 23:13:47 +0000

How to update "conda" version itself?

Wed, 10 Oct 2018 16:55:17 +0000

I can update all the libraries and packages on Anaconda using the following command:

conda update --all

But it does not update conda itself. Is there any special command for it?

Please provide information about Certificate in Data Science at School of Continuing Studies, University of Toronto

Sun, 07 Oct 2018 11:56:15 +0000

I really appreciate you providing some details about data science certificate at UofT SCS, and enrollment dates.

Could you please introduce resources for learning more about Git and GitHub?

Sun, 07 Oct 2018 11:51:22 +0000

Could you please introduce a good yet concise source/website to learn more about Git and Github?

Can you share with us how to download ipynb file as pdf through latex?

Wed, 03 Oct 2018 00:47:10 +0000

Access denied while updating Anaconda?

Sun, 30 Sep 2018 02:04:14 +0000

I am trying to update the Anaconda through cmd terminal but I am getting an error message of Access is denied. Although I am updating it through Admin account only. What should be the next steps to be done?

What is the difference between single quotation (' ') and double ("") quotation in Python?

Fri, 28 Sep 2018 14:30:42 +0000

Is there any big difference between ingle quotation (' ') and double ("") quotation in Python?

What do L1-norm and L2-norm mean as it applies to Norm?

Tue, 25 Sep 2018 16:02:31 +0000

How do I use the information provided in this link to apply in defining a L1-norm and L2-norm function in python?

Can someone please post the video tutorial for Pandas, Numpy and Matplotlib ?

Wed, 19 Sep 2018 13:20:32 +0000

Hello,

If someone can post the video tutorial for Pandas, Numpy and Matplotlib. I would appreciate it. I know that Lynda.com has those videos but I still have to get my Library card.

Thanks,

Can someone please post instructions on how to install Anaconda?

Wed, 19 Sep 2018 13:14:19 +0000

Can someone please provide detail instructions on how to install Anaconda and how to use Jupyter notebook with it ?

What are the best tools and resources for learning programming?

Sun, 26 Aug 2018 08:10:32 +0000

I am wondering if anyone can suggest the best resources and tools for learning programming?

What are the best resources for studying SQL?

Sun, 26 Aug 2018 07:58:51 +0000

I am wondering if anyone can suggest the best resources for studying SQL?

What are the best resources for studying R?

Sun, 26 Aug 2018 07:58:02 +0000

I am wondering if anyone can suggest the best resources for studying R?

What are the best resources for studying Python?

Sun, 26 Aug 2018 07:57:03 +0000

What are the best resources for studying Python?