A survival kit for the most common Frida operations. Based on the practical guide by F.-X. Gallat (IBS Grenoble).

Load, inspect, plot

Command	Example	Effect
fl	fl sample_280K.y08	Load file from disk
df	df	List all workspaces
dz	dz	Show z-values and x-ranges
p	p 0,2-6	Plot spectra 0, 2–6 of active workspace
a	a 0-6	Add spectra to current plot
gxl, gyl	gyl	Toggle log scale
ga	ga	Auto-scale axes

Manipulate data

Command	Example	Effect
oy	oy atan(y/100)	Transform y values
ox	ox x+x[10]	Transform x values
mr	mr abs(x)<6	Retain points where condition is true
md	md abs(x)>10	Delete points where condition is true
mpa	mpa ::4	Bin 4 energy channels into 1
mpaf	mpaf 5	Bin by fixed factor (equidistant output)

Cross-workspace arithmetic

Expression	Context	Effect
oy y-y[4]	0-3 >	Subtract workspace 4 point-by-point
oy y/y[5,0,j]	0-4 >	Divide by per-spectrum scalar in workspace 5

The index notation y[k,j,i] references any value across workspaces — see Expressions for details.

Fit a curve

Command	Example	Effect
cc	cc p0 + p1*exp(-(t-p2)^2)	Create fit curve
op0, op1, …	op0 1	Set initial parameter value
cv	cv 6	Set resolution workspace for convolution
cf / cfs	cf	Run fit (cfs: allow slow convolution)
cx / cu	cx 2	Fix / unfix parameter p2
cp	cp	Print all parameter values
ci	ci 1 / ci *	Extract parameter(s) into a new workspace

Save and quit

Command	Effect
fs / fso	Save to disk / overwrite existing
fc	Copy active workspace
quit	Exit Frida