r.resamp.stats: Fix quantile option being truncated to an integer - #7791
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r.resamp.stats: Fix quantile option being truncated to an integer#7791HUN-sp wants to merge 1 commit into
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The quantile variable is a double, but its value was parsed with atoi, so any quantile below 1.0 became 0 and method=quantile returned the minimum regardless of the requested quantile. Use atof, as r.neighbors, r.series and r3.neighbors already do for the same option.
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Summary
quantileis stored as adouble, but its value was parsed usingatoi(), causing any value less than1.0to be truncated to0. As a result,c_quant()always received0as the requested quantile, returning the minimum value. This meant thatmethod=quantileeffectively behaved asmethod=minimum, and thequantileoption had no effect.Verification
Verified on the
Comparison | Difference -- | -- quantile=0.5 vs. minimum | 0 ... 0 (identical) quantile=0.9 vs. minimum | 0 ... 0 (identical) quantile=0.5 vs. median | -21.67 ... 0 (expected to be 0)nc_spm_08_grass7dataset withres=100:Fix
Replace
atoi()withatof()so fractional quantile values are parsed correctly.This matches the implementation used by other GRASS modules exposing the same option, including:
r.neighborsr.seriesr3.neighborsNotes
Found while reviewing #7044 and submitted as a separate PR, as requested, to keep the fix independent.