Isoprocessor supports several plotting and data conversion functions for scan data. This vignette shows some of the functionality for scan files read by the isoreader package (see the corresponding vignette for details on data retrieval, storage and export).
# read scan examples provided by the isoreader package scan_files <- iso_read_scan( iso_get_reader_example("peak_shape_scan_example.scn"), iso_get_reader_example("background_scan_example.scn"), iso_get_reader_example("full_scan_example.scn"), iso_get_reader_example("time_scan_example.scn") ) #> Info: preparing to read 4 data files (all will be cached)... #> Info: reading file 'peak_shape_scan_example.scn' with '.scn' reader... #> Info: reading file 'background_scan_example.scn' with '.scn' reader... #> Info: reading file 'full_scan_example.scn' with '.scn' reader... #> Info: reading file 'time_scan_example.scn' with '.scn' reader... #> Info: finished reading 4 files in 1.01 secs
Isoprocessor provides a dynamic ratio calculation function (
iso_calculate_ratios()) that accepts any combination of masses, here demonstrated for several different ratios. In this context, another useful customization option of the plotting function is the option to adjust plot aesthetics such as color, shape, and paneling:
scan_files <- scan_files %>% # calculate 46/44, 45/44 iso_calculate_ratios(ratios = c("46/44", "45/44")) #> Info: calculating ratio(s) in 4 data file(s): r46/44, r45/44 iso_plot_scan_data( scan_files, type = "High Voltage", # visualize masses and ratios data = c(44:46, "45/44", "46/44"), # focus on peak x_interval = c(9.44, 9.49), # panel including by category panel = category ~ file_id )
Isoprocessor can convert between different signal units to examine the primary ion currents.