If I have the following data:
data={{24.998, 3.01329}, {25.487, 3.1036}, {25.977, 3.18242}, {26.473,
3.2167}, {26.983, 3.13354}, {27.495, 3.03633}, {28.006,
2.95134}, {28.515, 2.88278}, {29.02, 2.8459}, {29.524,
2.81361}, {30.028, 2.78335}, {30.532, 2.75411}, {31.035,
2.73131}, {31.537, 2.71316}, {32.039, 2.69919}, {32.541,
2.6876}, {33.042, 2.67938}, {33.543, 2.67225}, {34.044,
2.66644}, {34.545, 2.66139}, {35.045, 2.65809}, {35.546,
2.65551}, {36.046, 2.65338}, {36.546, 2.65153}, {37.047,
2.65029}, {37.547, 2.6494}, {38.047, 2.64884}, {38.547,
2.64841}, {39.047, 2.64811}, {39.548, 2.64781}, {40.048,
2.64757}, {40.548, 2.64746}, {41.048, 2.6475}, {41.548,
2.64755}, {42.048, 2.64767}, {42.548, 2.64788}, {43.048,
2.64815}, {43.549, 2.6484}, {44.049, 2.64867}, {44.549,
2.64896}, {45.049, 2.64932}, {45.549, 2.64966}, {46.049,
2.65001}, {46.549, 2.65038}, {47.049, 2.65079}, {47.549,
2.65118}, {48.049, 2.65157}, {48.549, 2.65199}, {49.049,
2.65244}, {49.549, 2.65288}, {50.049, 2.65331}, {50.549,
2.65374}, {51.05, 2.65422}, {51.55, 2.65468}, {52.05,
2.65513}, {52.55, 2.65559}, {53.05, 2.65605}, {53.55,
2.65652}, {54.05, 2.657}, {54.55, 2.65748}, {55.05,
2.65792}, {55.55, 2.65836}, {56.05, 2.6588}, {56.55,
2.65925}, {57.05, 2.65961}, {57.55, 2.65999}, {58.05,
2.66038}, {58.55, 2.66079}, {59.05, 2.66121}, {59.551,
2.66165}, {60.051, 2.6621}, {60.551, 2.66256}, {61.051,
2.66311}, {61.551, 2.66363}, {62.051, 2.66415}, {62.551,
2.66466}, {63.051, 2.66521}, {63.551, 2.66574}, {64.051,
2.66627}, {64.551, 2.66681}, {65.051, 2.66733}, {65.551,
2.66788}, {66.051, 2.66842}, {66.551, 2.66894}, {67.051,
2.66947}, {67.551, 2.66998}, {68.051, 2.67049}, {68.551,
2.67099}, {69.051, 2.67149}, {69.551, 2.67201}, {70.051,
2.67255}, {70.551, 2.6731}, {71.051, 2.67372}, {71.551,
2.67432}, {72.051, 2.67492}, {72.551, 2.67555}, {73.052,
2.67622}, {73.552, 2.67684}, {74.052, 2.67745}, {74.552,
2.67805}, {75.052, 2.67864}, {75.552, 2.67923}, {76.052,
2.67982}, {76.552, 2.68041}, {77.052, 2.68101}, {77.552,
2.68161}, {78.052, 2.68222}, {78.552, 2.68284}, {79.052,
2.68349}, {79.552, 2.68413}, {80.052, 2.68477}, {80.552,
2.6854}, {81.052, 2.68606}, {81.552, 2.68671}, {82.052,
2.68737}, {82.552, 2.68802}, {83.052, 2.68861}, {83.552,
2.68918}, {84.052, 2.68975}, {84.552, 2.69027}, {85.052,
2.69063}, {85.552, 2.69108}, {86.052, 2.69153}, {86.552,
2.69199}, {87.052, 2.69245}, {87.552, 2.69292}, {88.052,
2.69341}, {88.552, 2.6939}, {89.052, 2.69442}, {89.552,
2.69493}, {90.052, 2.69546}, {90.552, 2.69599}, {91.052,
2.69655}, {91.552, 2.69711}, {92.052, 2.69766}, {92.552,
2.69823}, {93.052, 2.6988}, {93.552, 2.69935}, {94.052,
2.69989}, {94.552, 2.70045}, {95.052, 2.70099}, {95.552,
2.70157}, {96.052, 2.70216}, {96.552, 2.70274}, {97.052,
2.70336}, {97.552, 2.70396}, {98.052, 2.70455}, {98.552,
2.70515}, {99.052, 2.70576}, {99.552, 2.70637}, {100.052,
2.70698}, {100.552, 2.70758}, {101.052, 2.70822}, {101.552,
2.70886}, {102.052, 2.7095}, {102.552, 2.71015}, {103.052,
2.71082}, {103.552, 2.71149}, {104.052, 2.71215}, {104.552,
2.71282}, {105.052, 2.7135}, {105.552, 2.71419}, {106.052,
2.71487}, {106.552, 2.71556}, {107.052, 2.71623}, {107.552,
2.71689}, {108.052, 2.71755}, {108.552, 2.7182}, {109.052,
2.71881}, {109.552, 2.71943}, {110.052, 2.72004}, {110.552,
2.72066}, {111.052, 2.72125}, {111.552, 2.72184}, {112.052,
2.72245}, {112.552, 2.72307}, {113.052, 2.72369}, {113.552,
2.7243}, {114.052, 2.7249}, {114.552, 2.7255}, {115.051,
2.7261}, {115.551, 2.72669}, {116.051, 2.72727}, {116.551,
2.72784}, {117.051, 2.72838}, {117.551, 2.72893}, {118.051,
2.72948}, {118.551, 2.73001}, {119.051, 2.73053}, {119.551,
2.73106}, {120.051, 2.73157}, {120.551, 2.73209}, {121.051,
2.73259}, {121.551, 2.73308}, {122.051, 2.73357}, {122.551,
2.73405}, {123.051, 2.73451}, {123.551, 2.73498}, {124.051,
2.73546}, {124.551, 2.73593}, {125.051, 2.73642}, {125.551,
2.7369}, {126.051, 2.73737}, {126.551, 2.73783}, {127.051,
2.73826}, {127.551, 2.73873}, {128.051, 2.73907}, {128.551,
2.73939}, {129.052, 2.7384}, {129.552, 2.73619}, {130.052,
2.73579}, {130.552, 2.73656}, {131.052, 2.73776}, {131.552,
2.73884}, {132.052, 2.73986}, {132.552, 2.74085}, {133.052,
2.7418}, {133.551, 2.74274}, {134.051, 2.74361}, {134.551,
2.74444}, {135.051, 2.74503}, {135.551, 2.7457}, {136.051,
2.74637}, {136.551, 2.74702}, {137.051, 2.74762}, {137.551,
2.74826}, {138.051, 2.74894}, {138.551, 2.74962}, {139.051,
2.75039}, {139.551, 2.75116}, {140.051, 2.75195}, {140.551,
2.75276}, {141.05, 2.75371}, {141.55, 2.75462}, {142.05,
2.75555}, {142.55, 2.75655}, {143.05, 2.75773}, {143.55,
2.75892}, {144.05, 2.76018}, {144.549, 2.76152}, {145.049,
2.76299}, {145.549, 2.76453}, {146.049, 2.76618}, {146.548,
2.76791}, {147.048, 2.7701}, {147.547, 2.7726}, {148.047,
2.77549}, {148.546, 2.77866}, {149.046, 2.78203}, {149.545,
2.78568}, {150.044, 2.78979}, {150.543, 2.79424}, {151.042,
2.79957}, {151.541, 2.80519}, {152.04, 2.81119}, {152.539,
2.81739}, {153.037, 2.82423}, {153.536, 2.83135}, {154.034,
2.83883}, {154.533, 2.84651}, {155.031, 2.85469}, {155.529,
2.86309}, {156.027, 2.87178}, {156.526, 2.88067}, {157.024,
2.88982}, {157.522, 2.89892}, {158.02, 2.90806}, {158.518,
2.91733}, {159.016, 2.92689}, {159.514, 2.93649}, {160.012,
2.94622}, {160.509, 2.95616}, {161.007, 2.96665}, {161.505,
2.97774}, {162.002, 2.98925}, {162.5, 3.0011}, {162.997,
3.01387}, {163.494, 3.02748}, {163.991, 3.04203}, {164.487,
3.05723}, {164.984, 3.07422}, {165.48, 3.09228}, {165.975,
3.11176}, {166.471, 3.13235}, {166.966, 3.15638}, {167.46,
3.18247}, {167.953, 3.21148}, {168.446, 3.2427}, {168.938,
3.28076}, {169.428, 3.32355}, {169.917, 3.37256}, {170.405,
3.42621}, {170.89, 3.494}, {171.373, 3.57118}, {171.852,
3.66097}, {172.33, 3.76013}, {172.802, 3.88615}, {173.27,
4.02805}, {173.733, 4.18957}, {174.193, 4.36525}, {174.646,
4.57463}, {175.095, 4.7979}, {175.541, 5.03393}, {175.986,
5.277}, {176.428, 5.52958}, {176.869, 5.78474}, {177.31,
6.04046}, {177.752, 6.295}, {178.194, 6.54687}, {178.636,
6.79524}, {179.08, 7.03736}, {179.524, 7.27554}, {179.978,
7.47131}, {180.441, 7.62793}, {180.923, 7.70132}, {181.424,
7.68992}, {181.974, 7.46629}, {182.54, 7.17707}, {183.117,
6.83616}, {183.699, 6.47479}}
Which plotted like ListLinePlot[data,PlotRange -> {{50, 250}, All}]
gives (without the red line):
How can I generate the red line in the figure that "completes the peak" following more and less a linear line from the part of the peak that is visible?. Also how to also generate the baseline after the peak ends?. YOU CAN ASSUME GAUSSIAN BEHAVIOR OF THE PEAK
PlotRange -> All
to see it. But then it's worse in that there's a bump around 25 in the horizontal variable that I assume will be conveniently ignored. John: as MarcoB states you really need to have some physical meaning/justification. Many of your questions seem to be data manipulations without any justified underlying models. That can get one into trouble if important decisions are made from the results. $\endgroup$ – JimB Jan 13 at 19:31