Bash loop for multivariable to the same data - bash

Question

I am trying to create models using multiple variables using bash loop. I need to run several predictions using different r2 and p-value cutoff for the same data. The r2 and value parameters are
cat parameters
0.2 1
0.2 5e-1
0.2 5e-2
0.2 5e-4
0.2 5e-6
0.2 5e-8
0.4 1
0.4 5e-1
0.4 5e-2
0.4 5e-4
0.4 5e-6
0.4 5e-8
0.6 1
0.6 5e-1
0.6 5e-2
0.6 5e-4
0.6 5e-6
0.6 5e-8
0.8 1
0.8 5e-1
0.8 5e-2
0.8 5e-4
0.8 5e-6
0.8 5e-8
The bash loop script I am using test.sh
RSQ=$(cat parameters | awk '{print $1}')
PVAL=$(cat parameters | awk '{print $2}')
season=("spring summer fall winter")
for i in $season;
do
echo prediction_${i}_${RSQ}_${PVAL}
done
the present output is
prediction_spring_0.2 0.2 0.2 0.2 0.2 0.2 0.4 0.4 0.4 0.4 0.4 0.4 0.6 0.6 0.6 0.6 0.6 0.6 0.8 0.8 0.8 0.8 0.8 0.8_1 5e-1 5e-2 5e-4 5e-6 5e-8 1 5e-1 5e-2 5e-4 5e-6 5e-8 1 5e-1 5e-2 5e-4 5e-6 5e-8 1 5e-1 5e-2 5e-4 5e-6 5e-8
prediction_summer_0.2 0.2 0.2 0.2 0.2 0.2 0.4 0.4 0.4 0.4 0.4 0.4 0.6 0.6 0.6 0.6 0.6 0.6 0.8 0.8 0.8 0.8 0.8 0.8_1 5e-1 5e-2 5e-4 5e-6 5e-8 1 5e-1 5e-2 5e-4 5e-6 5e-8 1 5e-1 5e-2 5e-4 5e-6 5e-8 1 5e-1 5e-2 5e-4 5e-6 5e-8
prediction_fall_0.2 0.2 0.2 0.2 0.2 0.2 0.4 0.4 0.4 0.4 0.4 0.4 0.6 0.6 0.6 0.6 0.6 0.6 0.8 0.8 0.8 0.8 0.8 0.8_1 5e-1 5e-2 5e-4 5e-6 5e-8 1 5e-1 5e-2 5e-4 5e-6 5e-8 1 5e-1 5e-2 5e-4 5e-6 5e-8 1 5e-1 5e-2 5e-4 5e-6 5e-8
prediction_winter_0.2 0.2 0.2 0.2 0.2 0.2 0.4 0.4 0.4 0.4 0.4 0.4 0.6 0.6 0.6 0.6 0.6 0.6 0.8 0.8 0.8 0.8 0.8 0.8_1 5e-1 5e-2 5e-4 5e-6 5e-8 1 5e-1 5e-2 5e-4 5e-6 5e-8 1 5e-1 5e-2 5e-4 5e-6 5e-8 1 5e-1 5e-2 5e-4 5e-6 5e-8
The desired output is
prediction_spring_0.2_1
prediction_spring_0.2_5e-1
prediction_spring_0.2_5e-2
prediction_spring_0.2_5e-4
prediction_spring_0.2_5e-6
prediction_spring_0.2_5e-8
prediction_spring_0.4_1
.......
prediction_winter_0.2_1
prediction_winter_0.2_5e-1
prediction_winter_0.2_5e-2
prediction_winter_0.2_5e-4
prediction_winter_0.2_5e-6
prediction_winter_0.2_5e-8
prediction_winter_0.4_1
..........

Answer 1

Your sample output is not complete enough. I can imagine two solutions: 1) you intend every season to be paired with every RSQ value to be paired with every PVAL value; or, 2) you want the stated R/P pairs to be matched with the seasons.
Solution for #1: you need to loop over the R & P lists
for i in $season; do
for r in $RSQ; do
for p in $PVAL; do
echo prediction_${i}_${r}_${p}
done
done
done
Solution for #2: read the file line by line
for i in $season; do
while read r p; do
echo prediction_${i}_${r}_${p}
done < parameters
done