Table 6: Comparison of line strengths measured in this and other studies. Ref.: reference of the comparison work (see description in the text); N: number of galaxies in common; $\Delta I$ : calculated offset between both studies (this work minus other study); $\sigma$ : rms dispersion; $\sigma _{\rm exp}$ : expected rms from the errors; t: t-parameter of the comparison of means; $\alpha$ : probability that $\sigma > \sigma _{\rm exp}$ by chance.
Index Ref. N $\Delta I$ $\sigma$ $\sigma _{\rm exp}$ t $\alpha$

H $\delta_A$ D05 24 +0.305 0.442 0.569 2.76 0.006

H $\delta_F$ D05 24 -0.036 0.197 0.450 0.87 0.197

H $\gamma_A$ D05 24 +0.550 0.428 0.555 3.82 0.001

H $\gamma_F$ D05 24 +0.349 0.359 0.463 3.38 0.001

CN₂ T98 53 -0.010 0.033 0.195 2.22 0.015

CN₂ D05 24 +0.125 0.034 0.094 4.64 0.001

Ca4427 T98 53 -0.181 0.287 0.755 3.88 0.001

Ca4227 D05 24 -0.070 0.170 0.341 1.85 0.039

G4300 T98 53 -0.272 0.640 0.807 2.84 0.003

G4300 D05 24 +0.061 0.310 0.506 0.94 0.179

Fe4383 T98 53 -0.051 0.561 1.081 0.65 0.259

Fe4383 D05 24 -0.639 0.463 0.615 3.91 0.001

Ca4455 T98 53 -0.150 0.304 0.700 3.21 0.001

Ca4455 D05 24 +0.170 0.210 0.419 3.05 0.003

Fe4531 T98 53 -0.205 0.422 0.887 3.18 0.001

Fe4531 D05 24 -0.175 0.217 0.411 3.05 0.003

C4668 T98 53 -0.667 0.821 1.129 4.57 0.001

C4668 M02 12 -1.194 1.332 1.143 2.19 0.027

C4668 D05 24 -0.684 0.541 0.671 3.79 0.001

H $\beta$ T98 53 +0.121 0.256 0.621 3.10 0.001

H $\beta$ G93 33 -0.057 0.150 0.333 2.16 0.019

H $\beta$ K01 32 +0.098 0.187 0.565 2.62 0.007

H $\beta$ M00 6 -0.428 0.316 0.418 1.86 0.068

H $\beta$ D05 24 +0.004 0.491 0.357 0.04 0.484

Fe5015 T98 53 -0.187 1.030 0.739 1.79 0.040

Fe5015 G93 33 -0.451 0.465 0.612 2.22 0.017

Fe5015 D05 24 -0.208 0.653 0.574 1.48 0.076

Mgb T98 53 -0.376 0.478 0.717 4.49 0.001

Mgb G93 33 -0.535 0.601 0.386 2.20 0.018

Mgb K01 32 -0.047 0.431 0.615 0.61 0.273

Mgb M00 6 -0.158 0.220 0.491 1.39 0.118

Mgb M02 12 -0.160 0.125 0.518 2.66 0.012

Mgb D05 24 +0.061 0.443 0.467 0.67 0.255

Fe5270 T98 53 +0.009 0.340 0.761 0.19 0.425

Fe5270 G93 33 +0.004 0.027 0.322 0.61 0.273

Fe5270 M00 6 +0.212 0.153 0.480 1.87 0.067

Fe5270 M02 12 +0.118 0.213 0.495 1.66 0.064

Fe5270 D05 24 -0.057 0.181 0.399 1.46 0.079

Fe5335 T98 53 +0.009 0.340 0.761 0.19 0.425

Fe5335 G93 33 -0.009 0.018 0.340 1.79 0.042

Fe5335 M00 6 +0.111 0.398 0.514 0.65 0.275

Fe5335 M02 12 +0.035 0.373 0.598 0.32 0.378

Fe5335 D05 24 +0.040 0.431 0.441 0.45 0.328

<Fe> K01 31 -0.016 0.183 0.159 0.65 0.110

**Table 6:** Comparison of line strengths measured in this and other studies. Ref.: reference of the comparison work (see description in the text); N: number of galaxies in common; $\Delta I$ : calculated offset between both studies (this work minus other study); $\sigma$ : rms dispersion; $\sigma _{\rm exp}$ : expected rms from the errors; t: t-parameter of the comparison of means; $\alpha$ : probability that $\sigma > \sigma _{\rm exp}$ by chance.
Index	Ref.	N	$\Delta I$	$\sigma$	$\sigma _{\rm exp}$	t	$\alpha$
H $\delta_A$	D05	24	+0.305	0.442	0.569	2.76	0.006
H $\delta_F$	D05	24	-0.036	0.197	0.450	0.87	0.197
H $\gamma_A$	D05	24	+0.550	0.428	0.555	3.82	0.001
H $\gamma_F$	D05	24	+0.349	0.359	0.463	3.38	0.001
CN₂	T98	53	-0.010	0.033	0.195	2.22	0.015
CN₂	D05	24	+0.125	0.034	0.094	4.64	0.001
Ca4427	T98	53	-0.181	0.287	0.755	3.88	0.001
Ca4227	D05	24	-0.070	0.170	0.341	1.85	0.039
G4300	T98	53	-0.272	0.640	0.807	2.84	0.003
G4300	D05	24	+0.061	0.310	0.506	0.94	0.179
Fe4383	T98	53	-0.051	0.561	1.081	0.65	0.259
Fe4383	D05	24	-0.639	0.463	0.615	3.91	0.001
Ca4455	T98	53	-0.150	0.304	0.700	3.21	0.001
Ca4455	D05	24	+0.170	0.210	0.419	3.05	0.003
Fe4531	T98	53	-0.205	0.422	0.887	3.18	0.001
Fe4531	D05	24	-0.175	0.217	0.411	3.05	0.003
C4668	T98	53	-0.667	0.821	1.129	4.57	0.001
C4668	M02	12	-1.194	1.332	1.143	2.19	0.027
C4668	D05	24	-0.684	0.541	0.671	3.79	0.001
H $\beta$	T98	53	+0.121	0.256	0.621	3.10	0.001
H $\beta$	G93	33	-0.057	0.150	0.333	2.16	0.019
H $\beta$	K01	32	+0.098	0.187	0.565	2.62	0.007
H $\beta$	M00	6	-0.428	0.316	0.418	1.86	0.068
H $\beta$	D05	24	+0.004	0.491	0.357	0.04	0.484
Fe5015	T98	53	-0.187	1.030	0.739	1.79	0.040
Fe5015	G93	33	-0.451	0.465	0.612	2.22	0.017
Fe5015	D05	24	-0.208	0.653	0.574	1.48	0.076
Mgb	T98	53	-0.376	0.478	0.717	4.49	0.001
Mgb	G93	33	-0.535	0.601	0.386	2.20	0.018
Mgb	K01	32	-0.047	0.431	0.615	0.61	0.273
Mgb	M00	6	-0.158	0.220	0.491	1.39	0.118
Mgb	M02	12	-0.160	0.125	0.518	2.66	0.012
Mgb	D05	24	+0.061	0.443	0.467	0.67	0.255
Fe5270	T98	53	+0.009	0.340	0.761	0.19	0.425
Fe5270	G93	33	+0.004	0.027	0.322	0.61	0.273
Fe5270	M00	6	+0.212	0.153	0.480	1.87	0.067
Fe5270	M02	12	+0.118	0.213	0.495	1.66	0.064
Fe5270	D05	24	-0.057	0.181	0.399	1.46	0.079
Fe5335	T98	53	+0.009	0.340	0.761	0.19	0.425
Fe5335	G93	33	-0.009	0.018	0.340	1.79	0.042
Fe5335	M00	6	+0.111	0.398	0.514	0.65	0.275
Fe5335	M02	12	+0.035	0.373	0.598	0.32	0.378
Fe5335	D05	24	+0.040	0.431	0.441	0.45	0.328
<Fe>	K01	31	-0.016	0.183	0.159	0.65	0.110

Source LaTeX | All tables | In the text