NLP - Topic Modeling
You run LDA with
num_topics=5 but get an error: ValueError: num_topics must be > 0. What is the likely cause?You run LDA with num_topics=5 but get an error: ValueError: num_topics must be > 0. What is the likely cause?
medium📝 Debug Q6 of 15
Step-by-Step Solution
Solution:
Step 1: Analyze error message
The error says num_topics must be greater than zero, so likely num_topics is zero or negative.Step 2: Check parameter usage
Even if code says 5, a variable or typo might have set num_topics to 0 or negative.Final Answer:
num_topics was set to zero or negative by mistake -> Option AQuick Check:
num_topics > 0 required [OK]
Quick Trick: Check num_topics value is positive integer [OK]
Common Mistakes:
MISTAKES- Ignoring error message details
- Blaming corpus or dictionary incorrectly
- Changing unrelated parameters
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