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Trace: • DM41X Polynomial Solver • LF15C - firmware for the DM15 • Desk15 - firmware for the DM15

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public:calculator:guides:ppc_cv [16/02/26 21:20 GMT] – [Running CV] johnpublic:calculator:guides:ppc_cv [17/02/26 08:00 GMT] (current) – [Further Information] john
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 You can accumulate more data (to add to what's already there) and do another FIT calculation. You can accumulate more data (to add to what's already there) and do another FIT calculation.
 +
 +If you want equally spaced ''X'' coordinates for single variable Y-data ''CV'' puts incrementing digit in ''X'' so you simply
 +
 +<key>ENTER</key> ''Y<sub>1</sub>'' <key>'Σ+'</key>
 +
 +<key>ENTER</key> ''Y<sub>2</sub>'' <key>'Σ+'</key>
 +
 +<key>ENTER</key> ''Y<sub>3</sub>'' <key>'Σ+'</key>
 +
 +<key>ENTER</key> ''Y<sub>4</sub>'' <key>'Σ+'</key>
 +
 +...
 +
 +and you accumulate as if you'd entered ''(1,Y<sub>1</sub>)'', ''(2,Y<sub>2</sub>)'', ''(3,Y<sub>3</sub>)'', ''(4,Y<sub>4</sub>)''... 
 +
 +If you have ''X'' and ''Y'' data then the automatically incrementing ''X'' is overwritten by the manually entered //real// ''X'' values.
  
 ===== Examples ===== ===== Examples =====
 +
 +
 +==== Manual Linear Fit ====
 +
 +=== Data ===
 +
 +Negative ''X'' and ''Y'' values allowed for a ''Linear'' Fit
 +
 +
 +^X^Y^
 +| -1.5 | -3|
 +|1.1|5.2|
 +|4.5|12.6|
 +|8.0|20.0|
 +|10.0|23.0|
 +|15.6|34.0|
 +
 +=== Entry procedure ===
 +
 +  * <key>SHIFT</key> <key>'E'</key> ''Initialize''
 +  * ''1.5''<key>CHS</key> <key>ENTER</key> ''3''<key>CHS</key> <key>'∑+'</key>
 +  * ''1.1''<key>ENTER</key> ''5.2'' <key>'∑+'</key>
 +  * ''4.5''<key>ENTER</key> ''12.6'' <key>'∑+'</key>
 +  * ''8''<key>ENTER</key> ''20'' <key>'∑+'</key>
 +  * ''10''<key>ENTER</key> ''23'' <key>'∑+'</key>
 +  * ''15.6''<key>ENTER</key> ''34'' <key>'∑+'</key>
 +
 +=== Fit to Linear ===
 +
 +  * ''1'' (for Linear Fit ''J'' = ''1'') <key>'B'</key>
 +
 +=== Results ===
 +
 +  * Z : '' 0.995734680  '' : r correlation coefficient
 +  * Y : '' 2.017167182  '' : a coefficient (y-intercept)
 +  * X : '' 2.113978698  '' : b coefficient (gradient)
 +
 +Linear Equation : '' Y = 2.114 X + 2.017 ''
 +
 +=== Estimations ===
 +
 +Predict ''Y'' for ''X = 20 ''
 +
 +  * ''20'' <key>'C'</key> 
 +    * '' 44.9674114 ''
 +
 +Predict ''X'' for ''Y = 25 ''
 +
 +  * ''25'' <key>'D'</key>
 +    * '' 10.87183747 ''
 +
 +
 +
 +==== Best Fit Method ====
 +
 +FIXME
  
  
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 ===== Further Information ===== ===== Further Information =====
  
 +See also : [[dm41x_ppc|]]
  
 {{tag>calculator dm41x}} {{tag>calculator dm41x}}
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 Page created :  16/02/26 20:13 GMT Page created :  16/02/26 20:13 GMT
  
-Page upated : ~~LASTMOD~~+Page updated : ~~LASTMOD~~
  

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