How to replace space with zero in a table?

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Sonima
Sonima 2019-1-22
回答： Peter Perkins 2019-1-23
Hi!
I want to replace space with zero in the H4.Time without loop.
K>> head(H4)
ans =
8×7 table
Date Time Open High Low Close Volume
________ ______ _____ _____ _____ _____ ______
20010102 200000 64.3 64.35 64.25 64.35 184
20010103 0 64.3 64.75 64.3 64.59 924
20010103 40000 64.6 64.7 64.39 64.52 932
20010103 80000 64.51 64.73 64.48 64.58 892
Any suggestion without loop to fix it?
Thanks.
  1 个评论
Walter Roberson
Walter Roberson 2019-1-22
Are the entries char or are they numeric? If they were originally numeric that got converted to fixed width then why not just 0 pad at the time?
Time = num2str([200000;0;40000;80000], '%06d')

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采纳的回答

Walter Roberson
Walter Roberson 2019-1-22
H4.Time(H4.Time == ' ') = '0';

更多回答（1 个）

Peter Perkins
Peter Perkins 2019-1-23
Sia, you may find that using the datetime datatype for Date, and the duration data type for Time, makes your life easier. Storing numbers as text is not likely to very convenient.

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