Raw float64 Endian Pair — Byte-Level Reference (.csv)
Every value in the raw endian pair with its exact byte sequence in both orders, so a decoder can be checked offset by offset instead of value by value. Negative zero and the subnormal entries are the rows where a byte-order mistake stops looking like a mistake.
index,value_repr,little_endian_bytes,big_endian_bytes,classification
0,0.0,00 00 00 00 00 00 00 00,00 00 00 00 00 00 00 00,positive zero
1,-0.0,00 00 00 00 00 00 00 80,80 00 00 00 00 00 00 00,negative zero
2,1.0,00 00 00 00 00 00 f0 3f,3f f0 00 00 00 00 00 00,normal
3,-1.0,00 00 00 00 00 00 f0 bf,bf f0 00 00 00 00 00 00,normal
4,3.141592653589793,18 2d 44 54 fb 21 09 40,40 09 21 fb 54 44 2d 18,normal
5,0.1,9a 99 99 99 99 99 b9 3f,3f b9 99 99 99 99 99 9a,normal
6,1e-300,59 f3 f8 c2 1f 6e a5 01,01 a5 6e 1f c2 f8 f3 59,normal
7,1e+300,9c 75 00 88 3c e4 37 7e,7e 37 e4 3c 88 00 75 9c,normal
8,2.2250738585072014e-308,00 00 00 00 00 00 10 00,00 10 00 00 00 00 00 00,normal
9,9007199254740992.0,00 00 00 00 00 00 40 43,43 40 00 00 00 00 00 00,normal
10,1.5,00 00 00 00 00 00 f8 3f,3f f8 00 00 00 00 00 00,normal
11,-2.75,00 00 00 00 00 00 06 c0,c0 06 00 00 00 00 00 00,normal
12,6.02214076e+23,17 c5 57 ca 85 e1 df 44,44 df e1 85 ca 57 c5 17,normal
13,1.602176634e-19,53 16 0c 29 da a4 07 3c,3c 07 a4 da 29 0c 16 53,normal
14,299792458.0,00 00 00 4a 78 de b1 41,41 b1 de 78 4a 00 00 00,normal
15,6.62607015e-34,11 31 02 de 0b 86 0b 39,39 0b 86 0b de 02 31 11,normal
Specifications
- Rows
- 16
- Columns
- 5
- Shows Both Byte Orders
- true
- Bytes Per Value
- 8
- Describes
- both raw .bin twins
Testing contract
Reference control- Scenario
- Read both raw .bin twins eight bytes at a time and compare each group against this table.
- Expected result
- Every offset in the little-endian file matches little_endian_bytes and the big-endian file matches big_endian_bytes, and both decode to the same value_repr.
What is a .csv file?
CSV (Comma-Separated Values) is a plain-text tabular format where rows are lines and fields are separated by commas, with quoting rules for values that contain delimiters, quotes, or newlines. It has no formal type system and depends on encoding and dialect conventions. It is the most portable format for tabular data exchange.
How to use this file
Use an example CSV to test parsers against quoting and embedded-delimiter edge cases, header handling, encoding detection, and import pipelines into databases or spreadsheets.
How to use this file for testing
“Raw float64 Endian Pair — Byte-Level Reference (.csv)” is a deterministic Novus Examples fixture for Scientific data, Editor testing, Conversion testing. Citation catalogs (BibTeX, RIS), chemistry structures (MDL Molfile, PDB), and gridded binary data (NetCDF, FITS) — for testing reference managers, molecule viewers, and scientific-data loaders.
Documented properties for this file: 16 rows · 5 columns. Compare results against paired or grouped companions on this page when present (clean↔damaged, searchable↔scanned, or format twins) so scores stay reproducible across runs.
Download the file once, keep the path stable in CI or local scripts, and treat the spec table as the contract: dimensions, seeds, field lists, and roles are intentional. Corrupt or invalid samples are labelled as such — expect parsers to fail loudly rather than silently accept them.
Scientific fixtures are small, valid, and fully synthetic — no real organism, patient, sample, or observation. Point your parser or loader at the file and check it reads the documented records, variables, or headers; binary formats ship a readable twin or metadata listing for comparison.
Code examples
import pandas as pd
df = pd.read_csv("raw-float64-endian-reference.csv")
print(df.head())
print(df.dtypes)Related files
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