Stream conversion components¶
The binary calculation streams can be converted to/from CSV for inspection and debugging. In pytools this is done by two multi-purpose tools (one sub-command per stream type), replacing the individual ktools utilities:
ktools utility (deprecated) |
pytools |
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no direct equivalent — use |
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General form: bintocsv <type> -i in.bin -o out.csv and
csvtobin <type> -i in.csv -o out.bin (both also read stdin / write stdout). The
stream field layouts below are unchanged.
bintocsv cdf¶
Converts the modelpy (getmodel) output stream — effective-damageability CDFs — to CSV.
Usage
evepy 1 1 | modelpy | bintocsv cdf -o cdf.csv
bintocsv cdf -i cdf.bin -o cdf.csv
Output fields — event_id, areaperil_id, vulnerability_id, bin_index,
prob_to (cumulative probability at the upper damage-bin threshold), bin_mean
(conditional mean of the damage bin).
bintocsv gul¶
Converts the ground-up loss stream from gulmc/gulpy (item or coverage stream) to CSV.
Usage
evepy 1 1 | gulmc -S100 -a1 | bintocsv gul -o gul.csv
bintocsv gul -i gul.bin -o gul.csv
Output fields — item stream: event_id, item_id, sidx, loss; coverage
stream: event_id, coverage_id, sidx, loss.
bintocsv fm¶
Converts the fmpy insured-loss stream to CSV.
Usage
evepy 1 1 | gulmc -S100 -a1 | fmpy -a2 | bintocsv fm -o il.csv
bintocsv fm -i il.bin -o il.csv
Output fields — event_id, output_id, sidx, loss.
Note
There is no bintocsv summarycalc sub-command — the raw summarypy summary stream has no
direct CSV converter. Produce ORD tables from it with eltpy/pltpy (see
Output components), or inspect the ground-up/insured streams upstream with
bintocsv gul / bintocsv fm.
csvtobin gul¶
Converts a ground-up loss CSV back into the binary loss stream (e.g. to pipe into
fmpy). The CSV has event_id, item_id, sidx, loss; for each event/item a
sidx = -1 (mean) and sidx = -2 (std dev) record must be present (even if zero),
while zero-loss positive samples may be omitted.
Usage
csvtobin gul -i gul.csv -o gul.bin -S 100 # -S/--max_sample_index is required
csvtobin gul -i gul.csv -S 100 | fmpy -a2 -o il.bin
See also: Data conversion components (data-file converters) · Validation · 3. Specification (full stream layouts).