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Forum |
Replies |
Views |
Posted
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Thread: Drop Keys From Dictionary
Post: RE: Drop Keys From Dictionary
| Thanks, with your help I made it work!
Now, is there a convenient way to select these keys in a data frame ? E.g. if the dict gave me the keys : "a" , "b" and "e", I want to select them from the the ... |
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donnertrud |
General Coding Help |
8 |
3,685 |
May-30-2020, 10:53 AM |
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Thread: Drop Keys From Dictionary
Post: RE: Drop Keys From Dictionary
| (May-30-2020, 09:55 AM)WiPi Wrote: Here's another straightforward method
dictOfVals = {1: 0.2, 2: -0.1, 3: 2, 4: 0.1, 5: 0.05}
newDict=dict()
# Iterate over all the dict values
for value in dictOf... |
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donnertrud |
General Coding Help |
8 |
3,685 |
May-30-2020, 10:00 AM |
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Thread: Drop Keys From Dictionary
Post: RE: Drop Keys From Dictionary
| That would work aswell! Can you recall a code to do that ? |
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donnertrud |
General Coding Help |
8 |
3,685 |
May-30-2020, 09:49 AM |
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Thread: Drop Keys From Dictionary
Post: Drop Keys From Dictionary
| Hi guys,
I got a dictionary with values ranging from 0.25 to -0.25. I am looking for a way, to automatically drop all keys that are either
0 < value < 0.1
or
0 > value > -0.1
so basi... |
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donnertrud |
General Coding Help |
8 |
3,685 |
May-30-2020, 09:24 AM |
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Thread: Differencing Time series and Inverse after Training
Post: Differencing Time series and Inverse after Trainin...
| Hello,
I got a non-stationary Time Series and I want to predict the target variable in the future. For simplicity, let's say that the target variable is simply a price and the features are economic f... |
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donnertrud |
Data Science |
0 |
4,101 |
May-27-2020, 06:11 AM |
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Thread: Replacing "." in columns
Post: Replacing "." in columns
| Hi guys,
I got a data set with missing values, however, those cells contain a "." instead of being empty. Here is an example :
[Image: https://imgur.com/a/YPsYKvz]
I want to resample the data to w... |
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donnertrud |
Data Science |
1 |
2,253 |
May-24-2020, 01:21 PM |
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Thread: Can't make Random Forest Prediction work
Post: Can't make Random Forest Prediction work
| Hi guys,
I am trying to predict the target variable "Exchange Rate EURUSD" using a data set that I created by myself. I included a lot of economic indicators and the monthly EURUSD closing price from... |
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donnertrud |
Data Science |
0 |
1,621 |
May-23-2020, 12:26 PM |
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Thread: Problem with replacing strings
Post: RE: Problem with replacing strings
| Both methods worked! Thank you so much |
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donnertrud |
General Coding Help |
3 |
2,117 |
May-22-2020, 04:06 PM |
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Thread: Problem with replacing strings
Post: Problem with replacing strings
| Hi guys,
I got a data set with Dates looking like this :
Jan. 01
Feb. 01
Mar. 01
and so on. It seems Python can't transform this kind of date format using
df['Date'] = pd.to_datetime(df['Date'])In... |
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donnertrud |
General Coding Help |
3 |
2,117 |
May-22-2020, 03:08 PM |
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Thread: Convert quarterly time series to monthly time series
Post: Convert quarterly time series to monthly time seri...
| Hi,
in order to bring all my data sets in the same shape, I need to convert a data set consisting of quartlery dates into a data set consisting of monthly dates. Here is a sample :
Date Feat... |
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donnertrud |
General Coding Help |
1 |
5,163 |
May-21-2020, 01:20 PM |
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Thread: Utilize input predictions for Supervised Learning
Post: RE: Utilize input predictions for Supervised Learn...
| Thanks for your response!
What you describe makes sense, however, I want to focus on fundamental analysis due to various reasons. I would like to use an economic calender (https://tradingeconomics.co... |
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donnertrud |
Data Science |
2 |
1,889 |
May-20-2020, 12:45 PM |
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Thread: Utilize input predictions for Supervised Learning
Post: Utilize input predictions for Supervised Learning
| Hi guys,
Currently I am working on a paper in order to research the usefulness of ML in order to predict Forex Exchange Rates using Supervised Learning techniques. So far, my model is based on monthl... |
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donnertrud |
Data Science |
2 |
1,889 |
May-20-2020, 06:01 AM |
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Thread: Graph that shows predicted vs true values
Post: Graph that shows predicted vs true values
| Hey guys,
I have a simple Random Forest Regression Model which is supposed to predict the Number of Likes of an Instagram Picture based on given features.
On some pictures the results are amazing, on... |
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donnertrud |
Data Science |
1 |
2,559 |
Jan-28-2020, 04:04 PM |
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Thread: Should you include uneven data
Post: Should you include uneven data
| Hi guys,
I am trying to make this post very short, because its a very general and simple question. I have a dataset which includes date as a feature. However, approx. 80% of the date is in the 4th qu... |
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donnertrud |
Data Science |
0 |
1,547 |
Jan-20-2020, 07:42 AM |
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Thread: Random Forest Hyperparamter Optimization
Post: Random Forest Hyperparamter Optimization
| Hello,
I have been trying to optimize the Random Forest Hyperparameter in order to lower the Mean Absolute Error of my Regression Model. I used Python to automatically look for those best parameters, ... |
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donnertrud |
Data Science |
1 |
1,939 |
Jan-16-2020, 03:02 PM |
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Thread: Random Forest high R2 Score but poor prediction
Post: RE: Random Forest high R2 Score but poor predictio...
| If one is looking for the best parameters, is there a way to search for the best parameters which yield the lowest Mean Absolute Error ? Or is this done by default? |
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donnertrud |
Data Science |
5 |
4,942 |
Jan-13-2020, 09:58 PM |
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Thread: Random Forest high R2 Score but poor prediction
Post: RE: Random Forest high R2 Score but poor predictio...
| Thanks for your response !
Instead of coding a loop which goes through different estimators, couldn't I run a RandomSearch with ranges for relevant RF parameters and looking for the best one with the ... |
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donnertrud |
Data Science |
5 |
4,942 |
Jan-13-2020, 04:45 PM |
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Thread: Random Forest high R2 Score but poor prediction
Post: Random Forest high R2 Score but poor prediction
| Hi guys,
I am working on a Regression task where one has to predict the number of likes of an Instagram pictures based on features which are given in a dataframe. I have attached a small part of that... |
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donnertrud |
Data Science |
5 |
4,942 |
Jan-13-2020, 07:30 AM |
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Thread: Creating a List with many variables in a simple way
Post: Creating a List with many variables in a simple wa...
| Hi guys,
I am currently working on a regression task with python. My model contains 26 variables, 17 of them are dummy variables.
With that model I am trying to predict the dependent variable based o... |
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donnertrud |
General Coding Help |
1 |
2,029 |
Jan-11-2020, 12:27 PM |
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Thread: Difference between R^2 and .score
Post: Difference between R^2 and .score
| Hi guys,
As far as I know you can calculate the accuracy of a regression model with sklearn LinearRegression
The code would be something like this :
model = LinearRegression()
accuracy = model.score... |
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donnertrud |
Data Science |
1 |
6,887 |
Jan-08-2020, 04:23 PM |
