Creates three new columns named TEMP, VX, and VY. The values in the TEMP column are the first characters of the strings in the corresponding rows of column V1, the values of the VX column are the first characters of strings in corresponding rows of column V2, and the values of the VY column are the first characters of the strings in corresponding rows of column V3.
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Creates three new columns named TEMP, VX, and VY. The values in the TEMP column are the first 12 characters of the strings in rows 1-50 of column V1, the values of the VX column are the first 12 characters of strings in rows 1-50 of column V2, and the values of the VY column are the first 12 characters of the strings in rows 1-50 of column V3.
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