我在点击计算后，出现了如下结果，请问这是什么原因呢？Estimates (Group number 1 - Default model)
Scalar Estimates (Group number 1 - Default model)
[color= ]The (probably) unidentified parameters are marked.
Regression Weights: (Group number 1 - Default model)

MD1

<---

MD

MD1

<---

e1

unidentified

MD2

<---

MD

MD2

<---

e2

unidentified

MD3

<---

MD

MD3

<---

e3

unidentified

MD4

<---

MD

MD4

<---

e4

unidentified

Variances: (Group number 1 - Default model)

MD

e1

unidentified

e2

unidentified

e3

unidentified

e4

unidentified

Minimization History (Default model)IterationNegative
eigenvalues
Condition #Smallest
eigenvalue
DiameterFNTriesRatio
0

e

1-69.5529999.00035683.61809999.000
1

e

1-29.992.14718588.590111.285


Model Fit Summary
CMIN

Model

NPARCMINDFPCMIN/DF

Saturated model

10.0000

Independence model

4317.9396.00052.990
RMR, GFI

Model

RMRGFIAGFIPGFI

Saturated model

.0001.000

Independence model

.383.521.201.312
Baseline Comparisons

Model

NFI
Delta1
RFI
rho1
IFI
Delta2
TLI
rho2
CFI

Saturated model

1.0001.0001.000

Independence model

.000.000.000.000.000
Parsimony-Adjusted Measures

Model

PRATIOPNFIPCFI

Saturated model

.000.000.000

Independence model

1.000.000.000
NCP

Model

NCPLO 90HI 90

Saturated model

.000.000.000

Independence model

311.939257.216374.075
FMIN

Model

FMINF0LO 90HI 90

Saturated model

.000.000.000.000

Independence model

1.5001.4711.2131.765
RMSEA

Model

RMSEALO 90HI 90PCLOSE

Independence model

.495.450.542.000
AIC

Model

AICBCCBICCAIC

Saturated model

20.00020.48353.61363.613

Independence model

325.939326.132339.384343.384
ECVI

Model

ECVILO 90HI 90MECVI

Saturated model

.094.094.094.097

Independence model

1.5371.2791.8311.538
HOELTER

Model

HOELTER
.05
HOELTER
.01

Independence model

912

Execution time summary

Minimization:	.006
Miscellaneous:	.067
Bootstrap:	.000
Total: