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-rw-r--r--doc/man/indexamajig.12
1 files changed, 1 insertions, 1 deletions
diff --git a/doc/man/indexamajig.1 b/doc/man/indexamajig.1
index f0431d0d..dc40a573 100644
--- a/doc/man/indexamajig.1
+++ b/doc/man/indexamajig.1
@@ -263,7 +263,7 @@ Set the overall threshold for peak detection using \fB--peaks=zaef\fR to \fIthre
.PD 0
.IP \fB--min-gradient=\fR\fIgrad\fR
.PD
-Set the gradient threshold for peak detection using \fB--peaks=zaef\fR to \fIgrad\fR, which units of "detector units per pixel". The default is \fB--min-gradient=100000\fR.
+Set the square of the gradient threshold for peak detection using \fB--peaks=zaef\fR to \fIgrad\fR, which has units of "squared detector units per pixel". The default is \fB--min-gradient=100000\fR. The reason it's 'gradient squared' instead of just 'gradient' is historical.
.PD 0
.IP \fB--min-snr=\fR\fIsnr\fR