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FIX: in grdtrack, -Su+d+r gives 0 result #8730

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Merged
joa-quim merged 2 commits into from
May 17, 2025
Merged

FIX: in grdtrack, -Su+d+r gives 0 result #8730

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0c202cb
FIX: in `grdtrack`, output 0 when -S[l|L|u|U]
Dengda98 May 17, 2025
3ecebf6
DOC: fix "stacked_profile.txt" in grdtrack.rst
Dengda98 May 17, 2025
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2 changes: 1 addition & 1 deletion doc/rst/source/grdtrack.rst
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Expand Up @@ -200,7 +200,7 @@ Optional Arguments
values to all cross-profiles. **+d** : Append stack deviations to
all cross-profiles. **+r** : Append data residuals (data - stack) to
all cross-profiles. **+s**\ [*file*] : Save stacked profile to
*file* [grdtrack_stacked_profile.txt]. **+c**\ *fact* : Compute
*file* [stacked_profile.txt]. **+c**\ *fact* : Compute
uncertainty envelope on stacked profile as ±\ *fact* \*\ *deviation* [2].
**Notes**: (1) Deviations depend on *method* and are standard deviation (**a**), L1
scale, i.e., 1.4826 \* median absolute deviation (MAD) (for **m** and **p**),
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7 changes: 4 additions & 3 deletions src/grdtrack.c
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Expand Up @@ -1020,9 +1020,10 @@ EXTERN_MSC int GMT_grdtrack (void *V_API, int mode, void *args) {
M->data[2+k*n_step][row] = stacked_dev[k]; /* The stacked deviation */
M->data[3+k*n_step][row] = stacked_lo[k]; /* The stacked low value */
M->data[4+k*n_step][row] = stacked_hi[k]; /* The stacked high value */
if (Ctrl->S.mode >= STACK_LOWER) continue;
M->data[5+k*n_step][row] = stacked_val[k] - Ctrl->S.factor * stacked_dev[k]; /* The low envelope value */
M->data[6+k*n_step][row] = stacked_val[k] + Ctrl->S.factor * stacked_dev[k]; /* The low envelope value */
if (Ctrl->S.mode < STACK_LOWER) {
M->data[5+k*n_step][row] = stacked_val[k] - Ctrl->S.factor * stacked_dev[k]; /* The low envelope value */
M->data[6+k*n_step][row] = stacked_val[k] + Ctrl->S.factor * stacked_dev[k]; /* The low envelope value */
}
if (n_added_cols == 0) continue; /* No modification to profile outputs requested */
for (seg = 0; seg < T->n_segments; seg++) { /* For each segment to append to */
col_s = colx; /* Start over at this column */
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