I am using the following Gnuplot script :

##### Definitions ####
a=0.3
s0=10.
s1=-9.999
r1u(x)=-exp(x)*(-1+a+a*exp(x))/((1+exp(x))**3)
r2u(x)=exp(x)*(1-exp(x))*(-1+a+a*exp(x))/((1+exp(x))**4)
f1(c,d)=s0*c*(1-2*a)/2. + s1*r1u(d)
f2(c,d)=1./(3.*c) - s0*c/6.

Is it possible to plot data in excel without having to define the function of the data in an extra column?

Think of this simplified example:

There are two columns with numbers A and B.

I have a word file which has some excel plots in it. Unfortunately I lost the original excel plots and the word file is now 'de-linked'. Is there a way to retrieve the lost data for the plots? Just copying the plot back to excel does not seem to work, but I can see that the data is still there somewhere, because hovering over a dot on the plot shows the values.

So in my lab last week we were supposed to make an rc circuit and plot the current and voltage over time. As we all know, this is an exponential decay function and current should follow
.
In this lab, a time constant was chosen to be so large so that the students could observe the change over time.

Is there any plot digitizer usable in Excel?

Hi,
Does anyone know if there is a way to do a nyquist plot (real Z) vs (Imag Z) in ORCAD SPICE?
I would like to obtain this type of plot for a capacitor and/or battery circuit model such as the Randles cell which is R in series with R || C.

Once I am able to create nyquist plot, then I can go one and refine/tweak the cell model.

I can do a BODE plot just fine and get Phase, Ma

Subject says it. I have multiple files I need to plot overlaying each other. Some of them may be empty. Is there a way to have it ignore the "Skipping data file with no valid points" error and just continue plotting? Here is my plot statement. the 9682 and/or 967E data files may be empty, but I need to see any data in either that is there.

Hello, I have imported in Matlab an excel file that contains two columns, one with numeric values, and the other one with text values. The first 5 rows can be seen below:

ABF-E 0.34

HJK-D -0.54

GHKL-I 1.34

FPLO-5 2.3

KKJLL-T 0.98

I need to plot the numeric column on the Y axis and the text column on the X axis.

I need to execute a command to run my script several times with varying parameters

Code:
perl ex.pl -b 130198 -e 130884 -c plot plot.txt 1_plot.txt
perl ex.pl -b 1345 -e 1308 -c plot plot.txt 2_plot.txt
perl ex.pl -b 1345567 -e 130898 -c plot plot.txt 3_plot.txt
.
.
.
100's of excutions
The varying parameters are -b -e and the output file (1_plot.txt, 2_plot.txt..)

I have th