Memory Errors

Cannot allocate memory

Matches: cannot allocate vector of size

WHAT THIS ERROR MEANS

R ran out of memory trying to create a large object. Your data or computation requires more RAM than available.

1. Process data in smaller chunks.

2. Remove unused objects with rm() and run gc().

3. Use more memory-efficient data structures (data.table instead of data.frame).

BAD — THIS CAUSES THE ERROR

huge_matrix <- matrix(0, nrow = 1e8, ncol = 100)

GOOD — CORRECT APPROACH

# Process in chunks:
library(data.table)
dt <- fread("large_file.csv")  # more memory efficient

Paste your code in RChat and the AI will fix this error in context.