Erratum: Axelsson, A.; et al. Exploring Multispectral ALS Data for Tree Species Classification. Remote Sens. 2018, 10, 183

The Editorial Office of Remote Sensing wish to report an error in the published paper [1];

Table 6. Confusion matrix for the best performing model (features used are: $P_{90}^{C1}$, ${\overline{Q}}^{C1}$, $Q_{05}^{C1}$, $Q_{50}^{C1}$, $Q_{90}^{C2}$, $Q_{95}^{C2}$, $Q_{01}^{C3}\mathrm{and}{Q}_{90}^{C3}$).

Classification † (Number of Trees)	Reference † (Number of Trees)									User’s (%)
	AL	M	B	AS	S	C	P	O	L
AL	1	0	0	0	0	0	0	0	1	50
M	0	12	0	0	0	0	0	1	2	80
B	0	0	24	0	0	2	0	0	5	77
AS	1	0	0	15	0	1	0	3	2	68
S	0	0	0	0	14	0	0	0	0	100
C	0	0	0	2	0	2	0	0	0	50
P	0	0	0	0	1	0	29	0	0	97
O	2	0	0	5	0	0	0	31	4	74
L	3	1	2	1	0	0	0	3	9	47
Producer’s (%)	14	92	92	65	93	40	100	82	39	Overall: 76.5

^†: AL, alder; M, maple; B, birch; AS, ash; S, spruce; C, cherry; P, pine; O, oak; L, linden.

,

Table 7. Confusion matrix for the model created by using only the spectral feature subset from the feature set resulting in the best performing model (features used are: ${\overline{Q}}^{C1}$, $Q_{05}^{C1}$, $Q_{90}^{C2}$, $Q_{95}^{C2}$, $Q_{01}^{C3}$ and $Q_{90}^{C3}$).

Classification † (Number of Trees)	Reference † (Number of Trees)									User’s (%)
	AL	M	B	AS	S	C	P	O	L
AL	1	0	0	0	0	0	0	0	1	50
M	0	12	0	0	0	0	0	1	2	80
B	0	0	24	0	0	4	0	0	5	73
AS	0	0	0	16	0	1	0	3	2	73
S	0	0	0	0	14	0	0	0	0	100
C	0	0	0	1	0	0	0	0	0	0
P	0	0	0	0	1	0	29	0	0	97
O	2	0	0	5	0	0	0	31	4	74
L	4	1	2	1	0	0	0	3	9	45
Producer’s (%)	14	92	92	70	93	0	100	82	39	Overall: 76.0

^†: AL, alder; M, maple; B, birch; AS, ash; S, spruce; C, cherry; P, pine; O, oak; L, linden.

and

Table 8. Confusion matrix for the model created by using only the structural feature subset from the feature set resulting in the best performing model (features used are: $P_{10}^{C1}$, ${\mathrm{dns}}^{C1}$, $P_{10}^{C2}$ and $P_{25}^{C3}$).

Classification † (Number of Trees)	Reference † (Number of Trees)									User’s (%)
	AL	M	B	AS	S	C	P	O	L
AL	0	1	0	1	1	1	0	0	2	0
M	0	0	0	0	0	0	0	0	0	0
B	0	0	0	1	0	0	0	0	0	0
AS	0	5	4	11	7	0	0	5	1	33
S	0	0	1	2	4	0	0	1	0	50
C	0	0	0	0	0	0	0	0	0	0
P	0	0	2	3	0	0	26	2	0	79
O	5	7	12	4	2	4	3	26	13	34
L	2	0	7	1	1	0	0	4	7	32
Producer’s (%)	0	0	0	48	27	0	90	68	30	Overall: 41.3

^†: AL, alder; M, maple; B, birch; AS, ash; S, spruce; C, cherry; P, pine; O, oak; L, linden.

were incorrect. The correct tables are as follows:

We apologize for any inconvenience caused to the readers by this change. The change does not affect the scientific results. The manuscript will be updated and the original will remain available on the article webpage.