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Calculate the performance of employee

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# 1  
Old 08-08-2019
Calculate the performance of employee

Hi Guys,

I need to determine the employee performance and calculate their salaries based on each quarter

Expected output
enter the no. of Employee  2
Enter Employee Name sam
Enter salary 1000
Enter Q1 5
Enter Q2 6
Enter Q3 3
Enter Q4 5
Enter Employee Name anderson
Enter salary 5000
Enter Q1 7
Enter Q2 7
Enter Q3 8
Enter Q4 8
EMPNAME | SALARY | Q1 | Q2 | Q3 | Q4 | Avg Q | Expected Sal | Incremented Sal | Performance |
sam 1000 5 6 3 5 4.0 1040.0 40.0 ON TRACK
anderson 5000 7 7 8 8 7.0 5350.0 350.0 BEST

code in python
def avg_check(q1,q2,q3,q4) :
    sum = q1 + q2 + q3 + q4
    av1 = float(sum / 4)
    return av1
def check_desc(av1) :
    if av1 >= 7 :
    elif av1 <=7 and av1 >=5 :
           desc="ON TRACK"
    return desc
details=[ ]
n=input("enter the no. of Employee  ")
print n
for i in range(n):
        name=raw_input("Enter Employee Name ")
        salary=input("Enter salary ")
        q1=input("Enter Q1 ")
        q2=input("Enter Q2 ")
        q3=input("Enter Q3 ")
        q4=input("Enter Q4 ")
        inc_salary=float(salary * av / 100)
        exp_salary=float(salary + inc_salary)
final=sorted(details, key = lambda x: int(x[6]))
print "EMPNAME | SALARY | Q1 | Q2 | Q3 | Q4 | Avg Q | Expected Sal | Incremented Sal | Performance | "
for i in range(len(final)):
    print " ".join(map(str,final[i]))

Can this be done on shell scripting in efficient way with good formatting of header and column
# 2  
Old 08-08-2019
Hi rohit_shinez:

IMHO I don't think you will be able to better Python for your use here, of which your version is 2.x.x.
It might be a better bet to translate to Python 3.x.x, (currently 3.7.x stable).

Apart from Awk, inline floating point arithmetic is not quickly and easily possible without external utilities, such as Python, Perl, bc, etc, using most UNIX shells.
And even the shells that have FP, (ksh and zsh for example), make for shell lock-in, so portability is not at all easy.

Having written that, so long as the utilities are available in all users cases then a POSIX version might be translatable from your code...

/Me thinks I will have a go...
# 3  
Old 08-08-2019
As the python code already exists, it'd be most efficient to just tweak it so the formatting is exactly what you want.

Aside: the av1 <= 7 will never be reached with av1 equals 7 as that is already taken one statement above. This comment may look like nit-picking, but in coding you should always know exactly what you are doing.
# 4  
Old 08-08-2019
Thanks Guys for your comments, I would like to know whether in unix bash script this can be done in efficient way. Can you guys help
# 5  
Old 08-08-2019
Hi rohit_shinez...
(Apologies for any typos.)
In bash? Hmm, awk - most probably as it has builtin scientific maths and floating point capability, but I am no expert.
Bash has ONLY integer maths and that is its limitation. As I quoted before if you have access to tools/utilities that can do floats, Python, Perl, bc, dc, or others then it is possible as is creating your own FIXED point maths calculator. (Note: 'maths' as I am UKan.)
A simple fully POSIX compliant example of making a floating point number divided by an integer like your case. All values are global here to make for an easy to understand to the problems involved if you don't have any decent tools to manipulate scientific and FP values.
Also POSIX does NOT allow x**y hence the multiplier function. Fortunately 'bash' CAN handle this in integer mode only but not shown:



    while [ ${TIMES_TEN} -ge 1 ]
        POWER=$(( POWER * 10 ))
        TIMES_TEN=$(( TIMES_TEN - 1 ))

remove_decimal_point 321.12345678

multiplier ${MULTIPLIER}

echo "Variables as global for this demo..."
echo "${NUMBER}"
echo "${M}"
echo "${N}"
echo "${NO_DECIMAL}"
echo "${MULTIPLIER}"
echo "${TIMES_TEN}"
echo ""
echo "Two calculations..."
echo "Firstly: Convert back to original string..."
printf "%.8f\n" "$(( NO_DECIMAL ))e-${MULTIPLIER}"
echo "Secondly: Two integers being divided and converted to FLOAT string..."
printf "%.8f\n" "$(( NO_DECIMAL / 11 ))e-${MULTIPLIER}"
echo "Confirm using Python..."
python -c "print( 321.12345678 / 11 )"

Result for this maths dilemma: OSX 10.14.3, default bash terminal calling dash...
Last login: Thu Aug  8 16:51:21 on ttys000
AMIGA:amiga~> cd Desktop/Code/Shell
AMIGA:amiga~/Desktop/Code/Shell> ./Float_Test.sh
Variables as global for this demo...

Two calculations...
Firstly: Convert back to original string...
Secondly: Two integers being divided and converted to FLOAT string...
Confirm using Python...
AMIGA:amiga~/Desktop/Code/Shell> _

You now see your problem...
HOWEVER; as I also quoted 'ksh' supports floating point arithmetic, including, float**another_float , which I have used often...
Unless your system does NOT have Python support then the code you have already would probably be better suited translated to awk.
I will pass those thoughts on to our awk experts...
I hope this helps wrap things up...
# 6  
Old 08-09-2019
Thanks for your inputs, I am mainly looking for the same program to work on unix bash script. Can you able to help how i can achieve it instead of python code
# 7  
Old 08-09-2019
Originally Posted by rohit_shinez
Thanks for your inputs, I am mainly looking for the same program to work on unix bash script. Can you able to help how i can achieve it instead of python code
Originally Posted by RudiC
As the python code already exists, it'd be most efficient to just tweak it so the formatting is exactly what you want.
This is the correct approach as RudiC has pointed out.
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