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Turning a bunch of numeric attributes into a single score


Turning a bunch of numeric attributes into a single score

By : user2954855
Date : November 22 2020, 10:33 AM
help you fix your problem tl;dr: Check out HiScore. It will allow you to quickly write and maintain scoring functions that behave in sensible ways.
To instantiate your simple example, let's say you have an app that receives as input a set of distances and times, and you want to map them to a 1-100 score. For instance, you get (1.2 miles, 8:37) and you'd like to return, say, 64.
code :


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using the same bunch of attributes in many classes

using the same bunch of attributes in many classes


By : justanotherguest
Date : March 29 2020, 07:55 AM
I hope this helps you . It's all about the self:
code :
module Basic
  @a=10
end
module Basic
  # self = Basic, but methods defined for instances
  class << self
    # self = Basic's eigenclass
    def extended(base)
      base.class_eval do
        # self = base due to class_eval
        @a=10
      end
    end
  end
end

class Use
  # self = Use, but methods defined for instances
  extend Basic # base = Use in the above
  class << self
    # self = Use's eigenclass
    def sh
      @a
    end
  end
end

Use.sh # 10
How do you convert bunch of columns to numeric in R

How do you convert bunch of columns to numeric in R


By : user3075556
Date : March 29 2020, 07:55 AM
like below fixes the issue You can use lapply() to apply a function across the columns of interest. I presume you want to leave the Time column intact, so we can leave that one out with a [-1] index.
code :
## change all 'No data' elements to NA
is.na(df) <- df == "No data"
## for columns 2:4, drop extra factor levels and convert to numeric
df[-1] <- lapply(droplevels(df)[-1], function(x) as.numeric(levels(x))[x])
df
              Time Server1 Server2 Server3
1  1/20/15 6:26 AM    1.08    1.67    0.83
2  1/20/15 7:26 AM    4.00    4.33    2.33
3  1/20/15 8:26 AM    7.92      NA    3.58
4  1/20/15 9:26 AM   12.08      NA    4.00
5 1/20/15 10:26 AM   15.00    7.75    3.92
6 1/20/15 11:26 AM      NA      NA      NA
read.table(file, na.strings = "No data")
Using the same bunch of attributes in many classes in C#

Using the same bunch of attributes in many classes in C#


By : Aniket Patil
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further You might consider making C an interface and adorning the interface property with your attributes - this solves the multi inheritance issue.
Calculate z-score in data bunch but excluding N.A

Calculate z-score in data bunch but excluding N.A


By : Shapo khan
Date : March 29 2020, 07:55 AM
wish helps you I think you need replace first N.A. to NaN and convert values to float:
python convert a bunch of columns to numeric in one go

python convert a bunch of columns to numeric in one go


By : Eduardo Campo
Date : March 29 2020, 07:55 AM
should help you out Had this same question recently. You should be able to use dtype to specify when you read the csv. Check out this question and the code below: Pandas reading csv as string type
code :
import pandas as pd

# this will make everything a float, so no truncation occurs
df = pd.read_csv(file_path, dtype=float)

# or if you aren't afraid of truncation
df = pd.read_csv(file_path, dtype=int)
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