Questions tagged [r]
For questions about implementation of Machine Learning and Artificial Intelligence algorithms in the R programming language.
8
questions
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votes
0
answers
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Unsupervised classification of objects based on relationships
I have size measurements of 1000 objects, measured over time. I would like to classify the objects based on the response of their size to time using unsupervised classification.
For example, the size ...
0
votes
1
answer
31
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Data analysis before feeding to ML pipeline
I'm new to machine learning and I've been working through a dataset of ~3000 records with ~100 features. I've been hand rolling Python and R scripts to analyse the data. For example, plotting the ...
- 103
1
vote
1
answer
81
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Why does my neural network to predict $x$ given $\sin(x)$ not generalize?
I made a simple feedforward neural network (FFNN) to predict $x$ from $\sin(x)$. It failed. Does it mean the model has overfitted? Why doesn't it work?
...
- 13
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votes
2
answers
403
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How to avoid over-fitting using early stopping when using R cross validation package caret
I have a data set with 36 rows and 9 columns. I am trying to make a model to predict the 9th column
I have tried modeling the data using a range of models using caret to perform cross-validation and ...
35
votes
8
answers
17k
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Is a switch from R to Python worth it? [closed]
I just finished a 1-year Data Science master's program where we were taught R. I found that Python is more popular and has a larger community in AI.
What are the advantages that Python may have over R ...
- 503
2
votes
1
answer
49
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Machine learning to find drivers of an event with presence-only data (no absence)
I have some ecological data on the confirmed presence of a certain animal. I have data on the:
...
- 121
1
vote
2
answers
326
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Defining rules for an expert system
I'm doing a project for my last university examination but I'm having some troubles! I'm making an expert system who should be able to assemble a computer after asking some questions to the user. It ...
- 31
2
votes
1
answer
149
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Predict frequently purchased items under certain conditions with customer purchasing history data
I have purchasing history data for grocery shopping. I am trying to get abnormally frequently purchased items under certain conditions. For instance, I am trying to find frequently purchased items, ...
- 141