CSV file imported with readmatrix is misreading the data in the CSV file

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James Andrada
James Andrada 2019-11-18
回答： James Andrada 2019-11-18
I'm trying to read a roughly 400 row csvfile consisting of one column of 3 digit numbers and 35 colums of 8 digit integres. The resulting array consists of 5 digit numbers with a decimal point after the first number. This isn't too helpful. The numbers represent measured frequencies in the 15MHz range so I'm losing data when importing

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回答（4 个）

per isakson
per isakson 2019-11-18
编辑：per isakson 2019-11-18
"The resulting array consists of 5 digit numbers with a decimal point after the first number." I assume that you describe how the numbers are displayed in the Command Window.
Try
format long
Example:
>> format long
>> pi
ans =
3.141592653589793
>> format short
>> pi
ans =
3.1416
>>
"I'm losing data when importing" No, it's only a question of how the values are presented.
James Andrada
James Andrada 2019-11-18
Thanks
It turned out that "longEng" displays them correctly - values were OK but displaying incorrectly.
By the way, is there any way to associate the format type with a variable, not globally for the workspace. Using "longEng" for 3 digit integres is very clumsy.
James Andrada
James Andrada 2019-11-18
Thanks. That's too bad. I guess I just need to issue a format command before printing.
James Andrada
James Andrada 2019-11-18
Thanks much. That's very helpful. I was thinking there might be a way to do it but hadn't had time to look into it yet today.

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