Appion

h1. Reconstruction Parameters

|_.Name|_.a.k.a.|_.Description|_.Used By|_.Required in interface?|

|Mask Radius|mask|raduius of external map in pixels|xmipp, eman||

|Inner Radius||inner radius for alignment in pixels|xmipp||

|imask|Particle inner mask raduius|radius of internal mask (in pixels for eman and spider, Angstroms for frealign)|EMAN, frealign, spider||

|Outer Radius|||xmipp||

|Particle outer mask radius (RO)|mask|radius from center of particle to outer edge (frealign in angstroms, spider in pixels)|frealign, spider||

|amask||amask=[r],[threshold],[iter]|eman||

|Symmetry Group|sym|ex. c1, c2...|xmipp,eman,frealign,spider||

|Number of iterations|iteration number||xmipp||

|Mask Filename|||xmipp||

|Angular Sampling Rate|||xmipp||

|Max angular change|||xmipp||

|max change offset|||xmipp||

|Search range for 5d transitional search|||xmipp||

|Discard % of image with CCF below|||xmipp||

|Reconstruction Method|||xmipp||

|Values of lambda for ART|||xmipp||

|Initial max frequency used by reconstruct fourier|||xmipp||

|Compute resolution?|||xmipp||

|Low Pass Filter the reference?|||xmipp||

|Do not use estimated resolution for low-pass filtering?|||xmipp||

|Constant to add to the estimated resolution|||xmipp||

|ang||angular step for projections in degrees|EMAN||

|maxshift||max translation during image alignment in pixels|eman||

|hard||hard limit for make3d program|eman||

|clskeep||=[std dev multipier] how many raw particles discarded for each class average|eman||

|clsiter||iterative alignmnet to each other|eman||

|filt3d||applies gaussian low pass filter in pixels [rad]|eman||

|xfiles||=[mas in kD]|eman||

|shrink||scale down by a factor of [n] before classification|eman||

|euler2||=[oversample factor]|eman||

|median||use median value instead of average for each pixel|eman||

|phscls||use signal to noise ratio weighted phase residual|eman||

|refine||do subpixel alignment|eman||

|tree||decimate reference populatiuon|eman||

|coran||use coran algorithm|eman||

|eotest||use even odd test|eman||

|amplitude contrast (WGH)|||frealign||

|Standard deviation filtering|||fealign||

|Phase B-factor weighting constant (PBC) |||frealign||

|B-factor offset (BOFF) |||frealign||

|Number of randomized search trials (ITMAX) |||frealign||

|Number of potential matches to refine (IPMAX)|||frealign||

|Target phase residual (TARGET) |||frealign||

|Worst phase residual for inclusion (THRESH)|||frealign||

|Resolution limit of reconstruction (RREC) (in Ångstroms; default Nyquist) |||frealign||

|Lower resolution limit or high-pass filter (RMAX1) (in Ångstroms) |||frealign||

|Higher resolution limit or low-pass filter (RMAX2) (in Ångstroms; default 2*Nyquist) |||frealign||

|B-factor correction (RBFACT) (0 = off)|||frealign||

|Only use CTFFIND values|||frealign||

|Last particle to use|||frealign||

|firstring||Any pixels this far away from center will not be used|spider||

|lastring||Only pixels this far away will be used|spider||

|xysearch|||spider||

|lp||low pass filter in angstroms|spider||

|hp||high pass filter in angstroms|spider||

|xyshift||particles only allowed to shift this far from center|spider||

|keep||determines which particles are kept for back-projection, -1 is one standard deviation worse than mean|spider||

|angular increments||list of angular increments for projection mapping|spider||