Hi,
Can anyone tell me about Noise simulation in LTSpice?

How Can I interpret that data?

what is the input noise level? in the output is the noise filtered out?

is there any other way by which i can simulate input noise and check if this noise is filtered in the output side?

 

See example:

 

So what does this simulation mean?

that the noise voltage decreases as the resistance increases?

 

Just the opposite! The larger the value the greater the noise resistor.
Green color -100 Ohm
Blue - 1kOhm
Red 10k
......
I took a simple electronic circuit and did the calculations. For one, I thought (with the command measure) integrated noise (input and output)

 

resistor 1kOhm has density of the noise ~4nV/sqrt(Hz)
resistor 100kOhm has density of the noise ~40nV/sqrt(Hz)