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Read in a file with no spaces and write one part of each line into a file

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sogand talebi
sogand talebi 2019-9-12
回答： Jalaj Gambhir 2019-9-16
Hi,
I have a data file with around 180 lines, like the following:
Date Time ,Frequency:
2019-09-11T11:43:02.782Z,9.0694850E+4
2019-09-11T11:43:07.776Z,9.0693890E+4
2019-09-11T11:43:12.779Z,9.0694460E+4
2019-09-11T11:43:17.781Z,9.0693870E+4
2019-09-11T11:43:22.775Z,9.0693370E+4
As you can see there are no spaces between date, time, and frequency determined:
How can I write a matlab script that can take this in and only give me the frequencies: so something like this:
9.0694850E+4
9.0693890E+4
9.0694460E+4
9.0693870E+4
9.0693370E+4
Thank you for your help,
  1 个评论
Walter Roberson
Walter Roberson 2019-9-12
编辑：Walter Roberson 2019-9-12
https://www.mathworks.com/help/matlab/ref/matlab.io.text.fixedwidthimportoptions.html
However if you only need the frequencies and nothing else, then a plain readtable() and then access the second variable. Or detectImportOptions and set the SelectedVariables of the options to only select the second column, and then readtable()

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回答（1 个）

Jalaj Gambhir
Jalaj Gambhir 2019-9-16
Hi,
You can use importdata and access the frequencies by:
c = importdata('filename',',',1);
c.data

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