Loading .RAW data into Matlab

Question

Anas Khan 2020-11-14

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/647778-loading-raw-data-into-matlab

回答： Walter Roberson 2020-11-14

I want to load a ~6 GB .raw file that contains text information describing my data and numerical information about voltage recordings on different channels. I am using a third party software's functions to load the data.

RawVoltageData = AxisFile('Maestro_(000).raw').RawVoltageData.LoadData;

I contacted one of the company's reps and told him it takes about 1 minute to load in only the raw voltage data from 1 channel, 7-8 minutes to load it from all 8 channels in a single location, which would be okay, except there are 768 total channels, and I don't want to wait 13 hours to just load data. What does speed of loading data of this nature depend on? Processor clock speed? Number of cores? RAM? If I SSH into a powerful AWS machine, will I be able to expedite this process?

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Walter Roberson 2020-11-14

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/647778-loading-raw-data-into-matlab#answer_544483

It would depend upon disk speed, disk controller, bus speed, system load, cache behaviour, operating system filesystem performance, number of library calls, whether the code is at the MATLAB level or compiled in, amount of data read at one time, how much processing has to be done.

If the data is not already on an ssd then put it on an ssd.