How to check and convert a column of strings to numbers
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I have some column data like this:
A =
"3"
"3"
"31"
"31"
"57"
"58"
or this
A =
"A05"
"C100"
"G5"
"H33"
Would you please help me with two questions?
(1) How do I check if A can be converted to numers (1 to the first A and 0 to the 2nd A)?
(2) Once I know that, how do I convert them to numerical values?
Thanks.
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Tommy
il 8 Apr 2020
(2) Convert any string to a double using str2double. "If str2double cannot convert text to a number, then it returns a NaN value."
D = str2double(A);
(1) Check if any element in the result is NaN:
all(~isnan(D))
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