Feng Gao

11 Questions 20 Answers 0 Followers

Questions related from Feng Gao

Does anybody know how to produce a frequency distribution plot in python or R?

Hello Everyone, I want to produce the following figure using python or R for my published paper. But I don't how to produce this figure using python or R. Does anybody know how to do that? Or any...

05 May 2019 3,918 12 View

Does anyboby can help me to download a PPT?

Hi guy. I have found a ppt about visualizng Data/EOFs. But I cannot download it due to limitation of Internet. One more question. Could you please help me to find the website about this author?...

12 December 2017 2,208 2 View

How can I do Mann–Kendall trend test in python?

Hi guys. I want to conduct Mann–Kendall trend test in python. Does anybody know which package support this test? Thank you. Jimmy

11 November 2017 4,209 2 View

How to study the effects of the spatial resolution of satellite image on the estimation of total suspended matter concentration?

Hi, guys. Recently, I want to study the effects of the spatial resolution of Landsat, MERIS and MODIS sensors on the estimation of total suspended matter (TSM) concention. But I don't know how to...

10 October 2017 7,721 2 View

Does anybody can provide me some papers about the spectral characteristics of water at SWIR region in the electromagnetic spectrum?

Dear all, I want to know the spectral characteristics of water at the SWIR range (1550-1750 nm and 2080-2350 nm) in the the electromagnetic spectrum. But I didn't find any valuable papers or...

09 September 2017 5,669 1 View

Does anyone know how to calculate the frequency of occurrence of each pattern identified by self-organizing maps?

Hello. Everyone. Recently,I have read a paper titled "Using self-organizing maps to identify patterns in satellite imagery". According to this paper, spatial paterns of SST can be identified by...

03 March 2017 2,070 0 View

Is anyone familiar with neural networks?

Recently,I want to establish a neural networks to forecast runoff. But now I tested a example as folloes,but I don't understand the results that you can see from the pictures.

03 March 2015 7,142 3 View

Is it possible to merge some .txt files into a new .txt file that contain all .txt file rows?

There are some .txt files that have the same columns and different rows. My question is how to convert these .txt files into a new .txt file.In other words, how to add all .txt files rows into a...

01 January 2015 10,035 2 View

How do I present a graphic like the following file using R?

I want to perform my results for publication like the following graphic.How should I do.Thanks.

01 January 2015 4,377 2 View

How can I convert .txt file into .csv file using R?

I want to convert some .txt files into .csv formate in order to change the form of data as shown below:

01 January 2015 4,732 11 View

How can I use R software to perform the Mann-Kendall Test for trend analysis and abrupt change

I want to use daily precipitation data to analysis the trend of rainfall.Thanks.

12 December 2014 1,410 39 View