# nmrglue.helpers¶

Helper functions for lineshape fitting.

This modules is imported as nmrglue.helpers and can be called as such.

## User Functions¶

 delta(v, d) Limits of v +/- d for array v and d. limit(vmin, vmax, npeaks) Fixed limits, vmin to vmax for all peaks. scale_params(rec, prefix, first, last) scale lineshape parameters in rec with name prefixX with X from from no_limits(nparams, npeaks) No limits on nparameters for npeaks. no_limits_amp(npeaks) No amplitude limits for npeaks super_zip(l) Zip a list after zipping each element. scale_columns(prefix, first, last) Create a list of scale parameter column names with name prefixX with X