View source for AIPS-to-CASA Cheat Sheet

{{Getting Started Intro}}
[[Category: CASA Basics]]

For AIPS users who are learning CASA, it is intuitive to think about equivalent tasks between the two software packages. Below are some AIPS-to-CASA equivalent tasks; note that there is not always a one-to-one transformation between the two packages. 

<table><tr><th align="left">AIPS</th><th align="left">CASA</th><th align="left">  Purpose </th></tr>
<tr><td>BLCAL </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu4.html#x7-60000.1.4 blcal] </td><td> Calibrate amplitudes and phases in a baseline-based fashion. </td></tr>
<tr><td>BPASS </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu3.html#x6-50000.1.3 bandpass] </td><td> Calibrate bandpasses </td></tr>
<tr><td>CALIB </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu23.html#x26-250000.1.23 gaincal] </td><td> Calibrate gains (amplitudes and phases) </td></tr>
<tr><td>CLCAL </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu2.html#x5-40000.1.2 applycal] </td><td> Apply calibration to data</td></tr>
<tr><td>COMB </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu28.html#x31-300000.1.28 immath] </td><td> Combine images </td></tr>
<tr><td>CPASS </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu3.html#x6-50000.1.3 cpass] </td><td> Calibrate bandpasses by polynomial fitting </td></tr>
<tr><td>DBCON </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu10.html#x13-120000.1.10 concat] </td><td> Concatenate uv datasets </td></tr>
<tr><td>DEFAULT  </td><td> default </td><td> Load a task with default parameters </td></tr>
<tr><td>FILLM </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu33.html#x36-350000.1.33 importvla] </td><td> Import old-format VLA data </td></tr>
<tr><td>FITLD </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu32.html#x35-340000.1.32 importuvfits] </td><td> Import a uv dataset which is in FITS format </td></tr>
<tr><td>FITLD </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu31.html#x34-330000.1.31 importfits] </td><td> Import an image which is in FITS format </td></tr>
<tr><td>FITTP </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu13.html#x16-150000.1.13 exportuvfits] </td><td> Write a uv dataset to FITS format </td></tr>
<tr><td>FITTP </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu12.html#x15-140000.1.12 exportfits] </td><td> Write an image to FITS format </td></tr>
<tr><td>FRING </td><td> --- </td><td> Calibrate group delays and phase rates. </td></tr>
<tr><td>GETJY </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu20.html#x23-220000.1.20 fluxscale] </td><td> Determine flux densities for other cals </td></tr>
<tr><td>GO  </td><td> go </td><td> Run a task </td></tr>
<tr><td>IMAGR </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu6.html#x9-80000.1.6 clean] </td><td> Image and deconvolve </td></tr>
<tr><td>IMFIT </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu26.html#x29-280000.1.26 imfit] </td><td> Fit gaussian components to an image </td></tr>
<tr><td>IMHEAD </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu79.html#x82-810000.1.79 vishead] </td><td> View header for uv data </td></tr>
<tr><td>IMHEAD </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu27.html#x30-290000.1.27 imhead] </td><td> View header for an image </td></tr>
<tr><td>IMLIN </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu25.html#x28-270000.1.25 imcontsub] </td><td> Subtract continuum in image plane </td></tr>
<tr><td>IMLOD </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu31.html#x34-330000.1.31 importfits] </td><td> Import a FITS image </td></tr>
<tr><td>IMSTAT </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu36.html#x39-380000.1.36 imstat] </td><td> Measure statistics on an image </td></tr>
<tr><td>INP </td><td> inp </td><td> View task parameters </td></tr>
<tr><td>JMFIT </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu26.html#x29-280000.1.26 imfit] </td><td> Fit gaussian components to an image </td></tr>
<tr><td>LISTR </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu41.html#x44-430000.1.41 listobs] </td><td> Print basic data </td></tr>
<tr><td>MCAT </td><td> ls </td><td> List image data files </td></tr>
<tr><td>MOMNT </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu29.html#x32-310000.1.29 immoments] </td><td> Compute moments from an image </td></tr>
<tr><td>OHGEO </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu34.html#x37-360000.1.34 imregrid] </td><td>Regrids an image onto another image's geometry </td></tr>
<tr><td>PBCOR </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu28.html#x31-300000.1.28 immath] </td><td> Correct an image for the primary beam </td></tr>
<tr><td>PCAL </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu51.html#x54-530000.1.51 polcal] </td><td> Calibrate polarization </td></tr>
<tr><td>POSSM </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu48.html#x51-500000.1.48 plotcal] </td><td> Plot bandpass calibration tables </td></tr>
<tr><td>POSSM </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu49.html#x52-510000.1.49 plotms] </td><td> Plot spectra </td></tr>
<tr><td>PRTAN </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu41.html#x44-430000.1.41 listobs] </td><td> Print antenna locations </td></tr>
<tr><td>PRTAN </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu47.html#x50-490000.1.47 plotants] </td><td> Plot antenna locations </td></tr>
<tr><td>QUACK </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu18.html#x21-200000.1.18 flagdata] </td><td> Remove first integrations from scans </td></tr>
<tr><td>RENAME </td><td> mv </td><td> Rename an image or dataset </td></tr>
<tr><td>SETJY </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu68.html#x71-700000.1.68 setjy] </td><td> Set flux densities for flux cals </td></tr>
<tr><td>SMOTH </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu35.html#x38-370000.1.35 imsmooth] </td><td> Smooth an image </td></tr>
<tr><td>SNPLT </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu48.html#x51-500000.1.48 plotcal] </td><td> Plot gain calibration tables </td></tr>
<tr><td>SPFLG </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu78.html#x81-800000.1.78 viewer] </td><td> Flag raster image of time v. channel </td></tr>
<tr><td>SPLIT </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu72.html#x75-740000.1.72 split] </td><td> Write out uv files for individual sources </td></tr>
<tr><td>TASK </td><td> inp </td><td> Load a task with current parameters </td></tr>
<tr><td>TGET </td><td> tget </td><td> Load a task with parameters last used for that task</td></tr>
<tr><td>TVALL </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu78.html#x81-800000.1.78 viewer] </td><td> Display image </td></tr>
<tr><td>TVFLG </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu78.html#x81-800000.1.78 viewer] </td><td> Flag raster image of time v. baseline </td></tr>

<tr><td>UCAT </td><td> ls </td><td> List uv data files </td></tr>
<tr><td>UVFLG </td><td> [http://casa.nrao.edu/docs/taskref/TaskRefsu18.html#x21-200000.1.18 flagdata] </td><td> Flag data </td></tr>
<tr><td>UVLIN </td><td> UVCONTSUB </td><td> Subtract continuum from uv data</td></tr>
<tr><td>UVLSF </td><td> UVCONTSUB </td><td> Subtract continuum from uv data</td></tr>
<tr><td>UVPLT </td><td> PLOTMS </td><td> Plot UV data </td></tr>
<tr><td>WIPER </td><td> PLOTMS </td><td> Plot and flag UV data </td></tr>
<tr><td>ZAP </td><td> RMTABLES </td><td> Delete data files </td></tr>
</table>

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--[[User:Lchomiuk|Laura Chomiuk]] 20:32, 10 February 2010 (UTC)