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fread: invalid estimation of DT size for small files #2518

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st-pasha opened this issue Dec 13, 2017 · 0 comments · Fixed by #2623
Closed

fread: invalid estimation of DT size for small files #2518

st-pasha opened this issue Dec 13, 2017 · 0 comments · Fixed by #2623
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bug fread
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v1.11.0

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@st-pasha
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> data.table::fread("A\n100\n200", verbose=T)
...
  All rows were sampled since file is small so we know nrow=3 exactly
...

In fact, nrow=2 exactly. The header row is mistakenly counted with the data.
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Better skip= and nrow= Rdatatable/data.table
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@st-pasha