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Year changing from negative -509 to a positive 510 in JDBC with H2 Database


Year changing from negative -509 to a positive 510 in JDBC with H2 Database

By : Semi Joha
Date : November 21 2020, 03:00 PM
may help you . Bug, fixed
This problem was due to a bug in H2.
code :


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Changing a positive value to a negative one

Changing a positive value to a negative one


By : Nathan
Date : March 29 2020, 07:55 AM
will help you In Android how can I change a value to a negative number? , Multiply pos1_deg by -1:
code :
pos1_deg * -1
Java math function to convert positive int to negative and negative to positive?

Java math function to convert positive int to negative and negative to positive?


By : dracoroboter
Date : March 29 2020, 07:55 AM
wish help you to fix your issue Is there a Java function to convert a positive int to a negative one and a negative int to a positive one? , What about x *= -1; ? Do you really want a library function for this?
Categorize the data into three groups (positive,negative) (positive,positive) (negative,negative) based on $3 and $2

Categorize the data into three groups (positive,negative) (positive,positive) (negative,negative) based on $3 and $2


By : Dominique Heinen
Date : March 29 2020, 07:55 AM
To fix this issue I think you need to do a two stage filter, as you need to perform the initial grouping by column 2 followed by the inspection of the values of column 3. The initial grouping should populate a dictionary, as presumably the column 2 values can vary quite a bit:
code :
grouped_rows = {}
for row in rows:
    second_column = row.split(" ")[1]
    if second_column in grouped_rows:
        grouped_rows[second_column].append(row)
    else:
        grouped_rows[second_column] = [row]
def row_value(row):
    return float(row.split(" ")[2])

for rows in grouped_rows.values():
    has_positive = any([ row_value(row) >= 0 for row in rows ])
    has_negative = any([ row_value(row) < 0 for row in rows ])

    if has_positive and not has_negative:
        write_rows(file_1, rows)
    elif has_positive and has_negative:
        write_rows(file_2, rows)
    else:
        write_rows(file_3, rows)
How to make pandas/core/generic/pct_change to return a positive value when changing from a negative to a positive value

How to make pandas/core/generic/pct_change to return a positive value when changing from a negative to a positive value


By : Maninder Kumar Singh
Date : March 29 2020, 07:55 AM
I wish this helpful for you You can write your condition out and multiply by -1 wherever it's met:
code :
>>> p = df["input"].pct_change()
>>> p
datetime
2011-01-01         NaN
2011-01-02   -0.775011
2011-01-03   -1.329728
2011-01-04   -3.253051
Name: input, dtype: float64
>>> p.loc[(df["input"].shift() < 0) & (df["input"] > 0)] *= -1
>>> p
datetime
2011-01-01         NaN
2011-01-02   -0.775011
2011-01-03   -1.329728
2011-01-04    3.253051
Name: input, dtype: float64
Javascript: Changing a positive number to a negative?

Javascript: Changing a positive number to a negative?


By : Gabriele Monti
Date : March 29 2020, 07:55 AM
Hope this helps Unary operators in Javascript are basically shorthand functions. You can find the documentation for the Unary (-) here
The - takes in one argument. The number you pass to it. Under the hood, I'm guessing it multiplies it by -1 and returns the product. The function could be written along the lines of:
code :
function -(arg) {
  return arg * -1;
}
SEEEEEEE EEEEMMMM MMMMMMMM MMMMMMMM MMMMMMMM MMMMMMMM MMMMMMMM MMMMMMMM
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