I read a schedule of Reading Assignment(RA) for fresh people, and I noticed that a significance of data analysis was shown in the schedule.

Basically it is about statistical analysis.

Coming to a sudden realization, I have already had the statistic knowledge like this, even I had not experimented such activities.

I think that I had used a classic PC, for example "PC8001MK2, fortunately.

Now I come to think of it, I was lucky that I used the diabolical PC which accepted text command without editor and I had made my original statistic analysis software.

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But I have no intention to say "so, you have to do it yourself" like typical old person's lecture.

The old Ebata has been saying since the past that "Any way will do as long as you resolve problems even if you could understand the method and get the answer".

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On the other hand, I am afraid that it is shamed that you lose a change to fail in the calculation dramatically.

It is rather extraordinary to destroy your program by divide by zero, overflow and so on. (It is difficult to make an error by Excel).

Of course, you are going through a lot, and close to tears.

But I don't feel nostalgic.

I think that the extraordinary fail is a sort of entertainment.

For example, "you make your car crash on load in the racing game".

I think the extraordinary experiment in ordinary days is a privilege of a system engineer.