How can the property list of interpolating function be explored and exploited?












3












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While looking at this question, I asked myself the question given in the title. I post the results of my investigation in the question as an answer.



I used the example code given in the referenced question to carry out my investigation.










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    3












    $begingroup$


    While looking at this question, I asked myself the question given in the title. I post the results of my investigation in the question as an answer.



    I used the example code given in the referenced question to carry out my investigation.










    share|improve this question









    $endgroup$















      3












      3








      3





      $begingroup$


      While looking at this question, I asked myself the question given in the title. I post the results of my investigation in the question as an answer.



      I used the example code given in the referenced question to carry out my investigation.










      share|improve this question









      $endgroup$




      While looking at this question, I asked myself the question given in the title. I post the results of my investigation in the question as an answer.



      I used the example code given in the referenced question to carry out my investigation.







      properties






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked 12 hours ago









      m_goldbergm_goldberg

      85.9k872196




      85.9k872196






















          1 Answer
          1






          active

          oldest

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          3












          $begingroup$

          pts = {{0, 0}, {1, 1}, {2, 3}, {3, 4}, {4, 3}, {5, 0}};
          f = Interpolation[pts]


          interp_func



          I extracted the property values from the property list with PropertyValue and made an association with the properties names as keys for ease of examination and access.



          propAssoc = Association[{# -> PropertyValue[f, #]} & /@ PropertyList[f]]


          warning



          assoc



          The association can be queried to get individual property values.



          propAssoc @ "Domain"



          {{0, 5}}




          but, of course, if we don't want the bother of making an association just to get one or a few property values, we can use



          PropertyValue[f, "Domain"]



          {{0, 5}}




          which seems always to be safe.



          However, be aware that f itself acts like an association when given a valid property name and, also being safe, should probably be considered the standard practice for accessing properties.



          f @ "Domain"



          {{0, 5}}







          share|improve this answer









          $endgroup$













          • $begingroup$
            Is this meant to be sort of a canonical question/answer that we can point to whenever someone is wondering how to extract information from an InterpolatingFunction? And, if so, isn't the canonical answer just your very last paragraph?
            $endgroup$
            – march
            12 hours ago










          • $begingroup$
            @march I didn't intend for it a canonical question but as an example of how to go about finding and using the properties of functions that have them. If it is useful as a canonical that'a a bonus. However, I think the 1st part, about how extract info on the properties, is as useful as the final conclusion.
            $endgroup$
            – m_goldberg
            12 hours ago










          • $begingroup$
            I mean, I definitely like the Association construction, since it has both the possible property names and their values all in one object, easily accessible and readable (rather than having to remember what properties there are). So, I get it!
            $endgroup$
            – march
            12 hours ago











          Your Answer





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          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          3












          $begingroup$

          pts = {{0, 0}, {1, 1}, {2, 3}, {3, 4}, {4, 3}, {5, 0}};
          f = Interpolation[pts]


          interp_func



          I extracted the property values from the property list with PropertyValue and made an association with the properties names as keys for ease of examination and access.



          propAssoc = Association[{# -> PropertyValue[f, #]} & /@ PropertyList[f]]


          warning



          assoc



          The association can be queried to get individual property values.



          propAssoc @ "Domain"



          {{0, 5}}




          but, of course, if we don't want the bother of making an association just to get one or a few property values, we can use



          PropertyValue[f, "Domain"]



          {{0, 5}}




          which seems always to be safe.



          However, be aware that f itself acts like an association when given a valid property name and, also being safe, should probably be considered the standard practice for accessing properties.



          f @ "Domain"



          {{0, 5}}







          share|improve this answer









          $endgroup$













          • $begingroup$
            Is this meant to be sort of a canonical question/answer that we can point to whenever someone is wondering how to extract information from an InterpolatingFunction? And, if so, isn't the canonical answer just your very last paragraph?
            $endgroup$
            – march
            12 hours ago










          • $begingroup$
            @march I didn't intend for it a canonical question but as an example of how to go about finding and using the properties of functions that have them. If it is useful as a canonical that'a a bonus. However, I think the 1st part, about how extract info on the properties, is as useful as the final conclusion.
            $endgroup$
            – m_goldberg
            12 hours ago










          • $begingroup$
            I mean, I definitely like the Association construction, since it has both the possible property names and their values all in one object, easily accessible and readable (rather than having to remember what properties there are). So, I get it!
            $endgroup$
            – march
            12 hours ago
















          3












          $begingroup$

          pts = {{0, 0}, {1, 1}, {2, 3}, {3, 4}, {4, 3}, {5, 0}};
          f = Interpolation[pts]


          interp_func



          I extracted the property values from the property list with PropertyValue and made an association with the properties names as keys for ease of examination and access.



          propAssoc = Association[{# -> PropertyValue[f, #]} & /@ PropertyList[f]]


          warning



          assoc



          The association can be queried to get individual property values.



          propAssoc @ "Domain"



          {{0, 5}}




          but, of course, if we don't want the bother of making an association just to get one or a few property values, we can use



          PropertyValue[f, "Domain"]



          {{0, 5}}




          which seems always to be safe.



          However, be aware that f itself acts like an association when given a valid property name and, also being safe, should probably be considered the standard practice for accessing properties.



          f @ "Domain"



          {{0, 5}}







          share|improve this answer









          $endgroup$













          • $begingroup$
            Is this meant to be sort of a canonical question/answer that we can point to whenever someone is wondering how to extract information from an InterpolatingFunction? And, if so, isn't the canonical answer just your very last paragraph?
            $endgroup$
            – march
            12 hours ago










          • $begingroup$
            @march I didn't intend for it a canonical question but as an example of how to go about finding and using the properties of functions that have them. If it is useful as a canonical that'a a bonus. However, I think the 1st part, about how extract info on the properties, is as useful as the final conclusion.
            $endgroup$
            – m_goldberg
            12 hours ago










          • $begingroup$
            I mean, I definitely like the Association construction, since it has both the possible property names and their values all in one object, easily accessible and readable (rather than having to remember what properties there are). So, I get it!
            $endgroup$
            – march
            12 hours ago














          3












          3








          3





          $begingroup$

          pts = {{0, 0}, {1, 1}, {2, 3}, {3, 4}, {4, 3}, {5, 0}};
          f = Interpolation[pts]


          interp_func



          I extracted the property values from the property list with PropertyValue and made an association with the properties names as keys for ease of examination and access.



          propAssoc = Association[{# -> PropertyValue[f, #]} & /@ PropertyList[f]]


          warning



          assoc



          The association can be queried to get individual property values.



          propAssoc @ "Domain"



          {{0, 5}}




          but, of course, if we don't want the bother of making an association just to get one or a few property values, we can use



          PropertyValue[f, "Domain"]



          {{0, 5}}




          which seems always to be safe.



          However, be aware that f itself acts like an association when given a valid property name and, also being safe, should probably be considered the standard practice for accessing properties.



          f @ "Domain"



          {{0, 5}}







          share|improve this answer









          $endgroup$



          pts = {{0, 0}, {1, 1}, {2, 3}, {3, 4}, {4, 3}, {5, 0}};
          f = Interpolation[pts]


          interp_func



          I extracted the property values from the property list with PropertyValue and made an association with the properties names as keys for ease of examination and access.



          propAssoc = Association[{# -> PropertyValue[f, #]} & /@ PropertyList[f]]


          warning



          assoc



          The association can be queried to get individual property values.



          propAssoc @ "Domain"



          {{0, 5}}




          but, of course, if we don't want the bother of making an association just to get one or a few property values, we can use



          PropertyValue[f, "Domain"]



          {{0, 5}}




          which seems always to be safe.



          However, be aware that f itself acts like an association when given a valid property name and, also being safe, should probably be considered the standard practice for accessing properties.



          f @ "Domain"



          {{0, 5}}








          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered 12 hours ago









          m_goldbergm_goldberg

          85.9k872196




          85.9k872196












          • $begingroup$
            Is this meant to be sort of a canonical question/answer that we can point to whenever someone is wondering how to extract information from an InterpolatingFunction? And, if so, isn't the canonical answer just your very last paragraph?
            $endgroup$
            – march
            12 hours ago










          • $begingroup$
            @march I didn't intend for it a canonical question but as an example of how to go about finding and using the properties of functions that have them. If it is useful as a canonical that'a a bonus. However, I think the 1st part, about how extract info on the properties, is as useful as the final conclusion.
            $endgroup$
            – m_goldberg
            12 hours ago










          • $begingroup$
            I mean, I definitely like the Association construction, since it has both the possible property names and their values all in one object, easily accessible and readable (rather than having to remember what properties there are). So, I get it!
            $endgroup$
            – march
            12 hours ago


















          • $begingroup$
            Is this meant to be sort of a canonical question/answer that we can point to whenever someone is wondering how to extract information from an InterpolatingFunction? And, if so, isn't the canonical answer just your very last paragraph?
            $endgroup$
            – march
            12 hours ago










          • $begingroup$
            @march I didn't intend for it a canonical question but as an example of how to go about finding and using the properties of functions that have them. If it is useful as a canonical that'a a bonus. However, I think the 1st part, about how extract info on the properties, is as useful as the final conclusion.
            $endgroup$
            – m_goldberg
            12 hours ago










          • $begingroup$
            I mean, I definitely like the Association construction, since it has both the possible property names and their values all in one object, easily accessible and readable (rather than having to remember what properties there are). So, I get it!
            $endgroup$
            – march
            12 hours ago
















          $begingroup$
          Is this meant to be sort of a canonical question/answer that we can point to whenever someone is wondering how to extract information from an InterpolatingFunction? And, if so, isn't the canonical answer just your very last paragraph?
          $endgroup$
          – march
          12 hours ago




          $begingroup$
          Is this meant to be sort of a canonical question/answer that we can point to whenever someone is wondering how to extract information from an InterpolatingFunction? And, if so, isn't the canonical answer just your very last paragraph?
          $endgroup$
          – march
          12 hours ago












          $begingroup$
          @march I didn't intend for it a canonical question but as an example of how to go about finding and using the properties of functions that have them. If it is useful as a canonical that'a a bonus. However, I think the 1st part, about how extract info on the properties, is as useful as the final conclusion.
          $endgroup$
          – m_goldberg
          12 hours ago




          $begingroup$
          @march I didn't intend for it a canonical question but as an example of how to go about finding and using the properties of functions that have them. If it is useful as a canonical that'a a bonus. However, I think the 1st part, about how extract info on the properties, is as useful as the final conclusion.
          $endgroup$
          – m_goldberg
          12 hours ago












          $begingroup$
          I mean, I definitely like the Association construction, since it has both the possible property names and their values all in one object, easily accessible and readable (rather than having to remember what properties there are). So, I get it!
          $endgroup$
          – march
          12 hours ago




          $begingroup$
          I mean, I definitely like the Association construction, since it has both the possible property names and their values all in one object, easily accessible and readable (rather than having to remember what properties there are). So, I get it!
          $endgroup$
          – march
          12 hours ago


















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