No changes between revisions
/Designs/Laboratory_instruments/High_voltage_power_supply/DATA/fit.log
0,0 → 1,92
 
 
*******************************************************************************
Tue Sep 17 09:07:41 2013
 
 
FIT: data read from "mereni_rozsahu.txt" using 1:2
format = x:z
#datapoints = 5
residuals are weighted equally (unit weight)
 
function used for fitting: f(x)
fitted parameters initialized with current variable values
 
 
 
Iteration 0
WSSR : 17494 delta(WSSR)/WSSR : 0
delta(WSSR) : 0 limit for stopping : 1e-05
lambda : 338.148
 
initial set of free parameter values
 
k = 1
q = 1
 
After 7 iterations the fit converged.
final sum of squares of residuals : 5.26925
rel. change during last iteration : -2.47107e-13
 
degrees of freedom (FIT_NDF) : 3
rms of residuals (FIT_STDFIT) = sqrt(WSSR/ndf) : 1.3253
variance of residuals (reduced chisquare) = WSSR/ndf : 1.75642
 
Final set of parameters Asymptotic Standard Error
======================= ==========================
 
k = 0.830736 +/- 0.006088 (0.7329%)
q = 23.4494 +/- 2.912 (12.42%)
 
 
correlation matrix of the fit parameters:
 
k q
k 1.000
q -0.979 1.000
 
 
*******************************************************************************
Tue Sep 17 09:08:22 2013
 
 
FIT: data read from "mereni_rozsahu.txt" using 1:2
format = x:z
#datapoints = 5
residuals are weighted equally (unit weight)
 
function used for fitting: f(x)
fitted parameters initialized with current variable values
 
 
 
Iteration 0
WSSR : 5.26925 delta(WSSR)/WSSR : 0
delta(WSSR) : 0 limit for stopping : 1e-05
lambda : 338.148
 
initial set of free parameter values
 
k = 0.830736
q = 23.4494
 
After 1 iterations the fit converged.
final sum of squares of residuals : 5.26925
rel. change during last iteration : 0
 
degrees of freedom (FIT_NDF) : 3
rms of residuals (FIT_STDFIT) = sqrt(WSSR/ndf) : 1.3253
variance of residuals (reduced chisquare) = WSSR/ndf : 1.75642
 
Final set of parameters Asymptotic Standard Error
======================= ==========================
 
k = 0.830736 +/- 0.006088 (0.7329%)
q = 23.4494 +/- 2.912 (12.42%)
 
 
correlation matrix of the fit parameters:
 
k q
k 1.000
q -0.979 1.000
/Designs/Laboratory_instruments/High_voltage_power_supply/DATA/linearita.png
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/Designs/Laboratory_instruments/High_voltage_power_supply/DATA/mereni_rozsahu.txt
0,0 → 1,7
REG Uout [V] ADC[mV]
310 280 883
423 376 2010
591 513 3660
540 473 3170
477 420 2540
 
/Designs/Laboratory_instruments/High_voltage_power_supply/DATA/plot.gp
0,0 → 1,8
set terminal png
set output "linearita.png"
 
f(x)=k*x + q
 
fit f(x) "mereni_rozsahu.txt" using 1:2 via k, q
 
plot "mereni_rozsahu.txt" using 1:2 with points, f(x)